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Posted by Pure Stang (Member # 7251) on
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My car has a ticking sound. It was loud. Not a knock. How can I tell if I have a bad lifter? I have comp cams short travel lifters engine only has 1k miles on it. On a few lifters if I push down the back of the lifter it goes down a little. Kinda spongy. Some people say it's normal some say it's not.... I took a video and will post it up soon... Any help will be greatly appreciated.
Here's the video
http://youtu.be/DVpDdBNNqEA
[ 2014-11-20, 10:29 PM: Message edited by: Pure Stang ]
Posted by hurting your feelings (Member # 13641) on
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If the rockers are adjusted right you shouldn't be able to push them down with your hand.
Posted by Pure Stang (Member # 7251) on
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quote:
Originally posted by hurting your feelings:
If the rockers are adjusted right you shouldn't be able to push them down with your hand.
From what it's seems there's like 6-8 one more than the others, but I figured if it was more than one wouldn't it sound like multiple ticking sounds not just one?
Posted by hurting your feelings (Member # 13641) on
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quote:
Originally posted by Pure Stang:
quote:
Originally posted by hurting your feelings:
If the rockers are adjusted right you shouldn't be able to push them down with your hand.
From what it's seems there's like 6-8 one more than the others, but I figured if it was more than one wouldn't it sound like multiple ticking sounds not just one?
One you 16 knocking will most of the time just sound like one is loose. I would re-adjust them an recheck to see if the noise goes away.if not pull the lifters out an check the cam lobes an rollers for abnormal wear.
Posted by Pure Stang (Member # 7251) on
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quote:
Originally posted by hurting your feelings:
quote:
Originally posted by Pure Stang:
quote:
Originally posted by hurting your feelings:
If the rockers are adjusted right you shouldn't be able to push them down with your hand.
From what it's seems there's like 6-8 one more than the others, but I figured if it was more than one wouldn't it sound like multiple ticking sounds not just one?
One you 16 knocking will most of the time just sound like one is loose. I would re-adjust them an recheck to see if the noise goes away.if not pull the lifters out an check the cam lobes an rollers for abnormal wear.
I will do that thank you.
Posted by Duncan Motors (Member # 7045) on
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sometimes there some crud in the lifter keeping it from pumping up at all no matter how much u adjust it.
Posted by Tom Renzo (Member # 13165) on
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The lifters are not pumped up. Are they NEW or did you bleed them down. The engine has to run for a while to pump them up. What you can do is pull the dizzy and install a dummy shaft and spin it with a drill. Then look to see if the oil comes out of the rockers. This will also pump up the lifters. If the lifters wont pump up they are dirty and the check valve is leaking. Good luck
[ 2014-08-04, 03:25 AM: Message edited by: Tom Renzo ]
Posted by Pure Stang (Member # 7251) on
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quote:
Originally posted by Tom Renzo:
The lifters are not pumped up. Are they NEW or did you bleed them down. The engine has to run for a while to pump them up. What you can do is pull the dizzy and install a dummy shaft and spin it with a drill. Then look to see if the oil comes out of the rockers. This will also pump up the lifters. If the lifters wont pump up they are dirty and the check valve is leaking. Good luck
Engine was running for awhile. Everything was still hot. Also checked to see if oil was coming out and it was when I was turning the engine. I'm going to check everything and re adjust everything. I just don't know if the rockers are suppose to move like that..
Posted by hurting your feelings (Member # 13641) on
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No there not supposed to move like that.with a fresh build I like to recheck valve lash between 500-1000 miles I always like to cut open the oil filter an check for metal.if there adjusted right an is still does it pull the lifters an check them an see if there clasped an check the cam bad lifters can cause a cam go flat.
Posted by Tom Renzo (Member # 13165) on
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If it is a roller cam there is no need to worry about a flat cam or worn lifters. You can just replace them. They are not pumping up. Has the noize been there since the rebuild. If yes you most likely have galley plugs missing. Normally a hydrulic cam does not need readjusting if pre-load is correct. Hydraulic cams do not run valve lash they are pre-loaded. If the pre-load changes you have serious issues And that play is not normal after the lifters pump up. But it is normal before they pump up. Sorry to say you just might have galley plugs missing. Good luck
[ 2014-08-04, 04:50 PM: Message edited by: Tom Renzo ]
Posted by Pure Stang (Member # 7251) on
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quote:
Originally posted by Tom Renzo:
If it is a roller cam there is no need to worry about a flat cam or worn lifters. You can just replace them. They are not pumping up. Has the noize been there since the rebuild. If yes you most likely have galley plugs missing. Normally a hydrulic cam does not need readjusting if pre-load is correct. Hydraulic cams do not run valve lash they are pre-loaded. If the pre-load changes you have serious issues And that play is not normal after the lifters pump up. But it is normal before they pump up. Sorry to say you just might have galley plugs missing. Good luck
No the noise started at around 900 miles. If was nice and quiet before that. And yes it's a roller cam. Did the first oil change there was no metal shavings and car ran great. Still ran good just annoying loud tick. Almost like a rocker was hitting the valve cover but it's not.
Posted by Tom Renzo (Member # 13165) on
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Change the lifters. BUT. The original ford galley plugs are no longer available. The aftermarket ones are garbage and sometimes fall out. That is why i tap them and use threaded plugs. Good luck
[ 2014-08-04, 07:15 PM: Message edited by: Tom Renzo ]
Posted by hurting your feelings (Member # 13641) on
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quote:
Originally posted by Tom Renzo:
If it is a roller cam there is no need to worry about a flat cam or worn lifters. You can just replace them. They are not pumping up. Has the noize been there since the rebuild. If yes you most likely have galley plugs missing. Normally a hydrulic cam does not need readjusting if pre-load is correct. Hydraulic cams do not run valve lash they are pre-loaded. If the pre-load changes you have serious issues And that play is not normal after the lifters pump up. But it is normal before they pump up. Sorry to say you just might have galley plugs missing. Good luck
Stop giving bad advise .I have seen more then one roller cam go flat
Posted by Duncan Motors (Member # 7045) on
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true i have seen more than one go flat, very un common and its not for the main reasons flat tappits go flat,like the lifter broke,etc. but it does happen, shoot matter of fact ive seen them run grooves in the cams just like the flat tappits even ,,,,,, not very common and the main reason i dont even run flat tappits any more.
Posted by Duncan Motors (Member # 7045) on
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lol keep giving advise! we all learn something new everyday. different aspects will keep us from making your old mistakes or u ours.
Posted by Tom Renzo (Member # 13165) on
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I got it just like hydrulic cams have valve lash. Hay i never said roller cams do not have issues. The lifter can fail and grind down the cam. As the matter of fact ford really never had a cam issue because they learned early on about offset lifters. So there flat tappet cams were also tried and true as they say. Chevy on the other hand has an issue with there flat tappet cams in the early days. Strange things can happen. But it is far and few that a ford roller cam fails. As the matter of fact i sell the old cams to a friend that grinds cams. So tell me how many Ford roller cams have you seen flat that were that way without other engine issues. Because with my experience with them tells a different story. Also the engine is only 1000 miles old if i am reading him right. As far as bad info in my worst day . Well i am not even going to waste my time with your Nonsense. Now keep on telling people Hydraulic cams have valve lash. Now if the owner wants to replace the cam and lifters be my guest. But if that cam is wiped out in 1000 miles something is seriously wrong. Ford roller cams are tried and true. Now that is of course is if he is running a ford cam. And even if the cam was wiped out why is the lifter collapsed and not pumping up. If you have the experience you bullshit about you would know that a flat cam still has lifters that do not make NOISE. I have change many a cam in my career with flat lobes and the engines ran as quiet as a mouse. Or didn't you know that?? a collapsed lifter has nothing to do with cam profile. And the owner posted he had no metal in the engine. That is what he posted!!
Ford engineering answer to a question at SEMA I was there.
Chevy had engines with cam lobes directly under lifters for a while and it caused a lot of cam failures. The cure was to move the lobes away from the center line of the lifter bores so the lifters could rotate on flat tappet cams. Ford did not have this issue and when Ford switched to roller cams they were bullet proof as they say. Roller blocks are not offset. And roller cams are never run offset.
Jim Wilson SVO design engineer.
[ 2014-08-05, 05:07 PM: Message edited by: Tom Renzo ]
Posted by hurting your feelings (Member # 13641) on
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Wouldn't all the liftesr not pump up if the oil galley plugs pop out Tom? Or I am mistaken.
Posted by Pure Stang (Member # 7251) on
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Well I have adjusted the rockers to specs. Almost all of them where off according to what they are suppose to be. Couple where so off idk how the pushrod stayed on the rocker. Tomorrow I should have it fired up and hopefully the noise is gone..... If the noise continues I would assume it something more serious? What else could it be if the noise is still there?
Posted by hurting your feelings (Member # 13641) on
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If the noise is still there tear down will be need to do a visual inspection of the lifters an cam journals.
Posted by Pure Stang (Member # 7251) on
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quote:
Originally posted by hurting your feelings:
If the noise is still there tear down will be need to do a visual inspection of the lifters an cam journals.
What sucks is that I need to take my heads off to take the lifters out... Tried taking one out and it hits the head.
Posted by hurting your feelings (Member # 13641) on
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quote:
Originally posted by hurting your feelings:
If the noise is still there tear down will be need to do a visual inspection of the lifters an cam journals.
That would suck to do it's almost like you have ls engine then.
Posted by Pure Stang (Member # 7251) on
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quote:
Originally posted by hurting your feelings:
quote:
Originally posted by hurting your feelings:
If the noise is still there tear down will be need to do a visual inspection of the lifters an cam journals.
That would suck to do it's almost like you have ls engine then.
If I would have known the aftermarket lifters would do this I would have never gotten them.
Posted by JZTRK (Member # 7641) on
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Thats not normal i had similar issues a few years back and this is what i found my tick was
[ 2014-08-06, 02:09 PM: Message edited by: JZTRK ]
Posted by Tom Renzo (Member # 13165) on
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who makes the lifters you are using?? That lifter pictured above is classic of a roller failure. That in turn wipes out the cam. Like i said something has to go wrong to wipe out a roller cam. Looks like a seized roller or the roller is soft. Have a great evening guys
Posted by JZTRK (Member # 7641) on
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the lifters are FRPP and the cause was a broken dog bone lifter spun
Posted by hurting your feelings (Member # 13641) on
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quote:
Originally posted by Tom Renzo:
who makes the lifters you are using?? That lifter pictured above is classic of a roller failure. That in turn wipes out the cam. Like i said something has to go wrong to wipe out a roller cam. Looks like a seized roller or the roller is soft. Have a great evening guys
Which would be a flat cam?
Posted by Tom Renzo (Member # 13165) on
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Wow Thanks for the info.
[ 2014-08-06, 06:05 PM: Message edited by: Tom Renzo ]
Posted by Tom Renzo (Member # 13165) on
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The same thing happened to my Pontiac motor many years ago. The link broke and the lifter spun also. Thank you
[ 2014-08-06, 06:16 PM: Message edited by: Tom Renzo ]
Posted by Pure Stang (Member # 7251) on
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Well adjusted my rockers. And still has a loud tick! Really starting to bug me. So next is taking the heads off to check the lifters?
Posted by hurting your feelings (Member # 13641) on
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quote:
Originally posted by Pure Stang:
Well adjusted my rockers. And still has a loud tick! Really starting to bug me. So next is taking the heads off to check the lifters?
Yeap tear down an inspection is the next step.
An have you had the oil filter cut open yet to see if there is metal in it.
Posted by Pure Stang (Member # 7251) on
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quote:
Originally posted by hurting your feelings:
quote:
Originally posted by Pure Stang:
Well adjusted my rockers. And still has a loud tick! Really starting to bug me. So next is taking the heads off to check the lifters?
Yeap tear down an inspection is the next step.
An have you had the oil filter cut open yet to see if there is metal in it.
On the first oil change I didn't see anything. Going to change the oil again and see if there's anything now.
Posted by Tom Renzo (Member # 13165) on
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Who makes the lifters PS just curious. And who makles the cam just curious. Thanks
Posted by hurting your feelings (Member # 13641) on
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quote:
Originally posted by Tom Renzo:
Who makes the lifters PS just curious. And who makles the cam just curious. Thanks
Go read the frist post an you will find out what lifters he used.
Posted by Tom Renzo (Member # 13165) on
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I saw that call COMP cam if you have there lifters. I am sure you have them if you have there cam. If you set up your Geometry correctly you do not need short throw units. I do not use the short stroke ones but to each his own. What i meant by what cam you have i wanted the specks. I apologize for not making that clear.I asked the question incorrectly Sorry. Is it a very aggressive unit?? With 1000 on the build those lifters should not be an issue. If i may did you say you had more that one collapsed or just one. If it is bank specific the galley plug may have come out. If it is just 2 or 3 on different banks it is not. I had an engine FORD that this happened to last month. Same thing the lifters collapsed. Once again good luck.
[ 2014-08-09, 03:32 AM: Message edited by: Tom Renzo ]
Posted by Pure Stang (Member # 7251) on
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quote:
Originally posted by Tom Renzo:
I saw that call COMP cam if you have there lifters. I am sure you have them if you have there cam. If you set up your Geometry correctly you do not need short throw units. I do not use the short stroke ones but to each his own. What i meant by what cam you have i wanted the specks. I apologize for not making that clear.I asked the question incorrectly Sorry. Is it a very aggressive unit?? With 1000 on the build those lifters should not be an issue. If i may did you say you had more that one collapsed or just one. If it is bank specific the galley plug may have come out. If it is just 2 or 3 on different banks it is not. I had an engine FORD that this happened to last month. Same thing the lifters collapsed. Once again good luck.
I don't know how to tell if a lifter is clapsed. The cam is milder side made for boost. All the rockers moved and seemed fine but one seemed super stiff. Even after adjusting it, it had no play at all. Lifter are comp cams short travel lifters. Everything was matched up correctly.
[ 2014-08-09, 01:59 PM: Message edited by: Pure Stang ]
Posted by hurting your feelings (Member # 13641) on
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Pm me your number an I will explain what to look for.
Posted by Tom Renzo (Member # 13165) on
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You know what a collapsed lifter is. Your video shows it clearly. Not pumping up and when you push it down it has play. Simple!!! The lifters should pump up and be solid as a rock. You should not be able to push them down.The clicking noise that brought it to your attention is proof positive you have collapsed lifters. Good luck.
Posted by hurting your feelings (Member # 13641) on
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quote:
Originally posted by Tom Renzo:
You know what a collapsed lifter is. Your video shows it clearly. Not pumping up and when you push it down it has play. Simple!!! The lifters should pump up and be solid as a rock. You should not be able to push them down.The clicking noise that brought it to your attention is proof positive you have collapsed lifters. Good luck.
I think he want to know how to visual check if there collapsed.
Posted by Pure Stang (Member # 7251) on
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quote:
Originally posted by Tom Renzo:
You know what a collapsed lifter is. Your video shows it clearly. Not pumping up and when you push it down it has play. Simple!!! The lifters should pump up and be solid as a rock. You should not be able to push them down.The clicking noise that brought it to your attention is proof positive you have collapsed lifters. Good luck.
So from what you are saying every lifter but one is bad? They where all doing that. Except one that was rock solid no movement... This sucks I'm going to have to pull the heads and replace all the lifters from my understanding.
Posted by Tom Renzo (Member # 13165) on
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The video is quite visual dont you think. There is either an issue with those lifters all of them i dought it. If he can in fact push them down like in his video they are clearly collapsed. If he has only one that is hard it might be on lift without seeing it in person i can not tell. But chances are they all can not be bad. Check all of them like you did in the video and post back. Something has gone really bad here. Like i said the last engine we saw this on had a galley plug fall out. No oil pressure to the lifters they can not pump up. And further more he said they were ok for 1000 miles. That is the key that either all those lifters have an issue or he has a common problem with that block.
Posted by Pure Stang (Member # 7251) on
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quote:
Originally posted by Tom Renzo:
The video is quite visual dont you think. There is either an issue with those lifters all of them i dought it. If he can in fact push them down like in his video they are clearly collapsed. If he has only one that is hard it might be on lift without seeing it in person i can not tell. But chances are they all can not be bad. Check all of them like you did in the video and post back. Something has gone really bad here. Like i said the last engine we saw this on had a galley plug fall out. No oil pressure to the lifters they can not pump up. And further more he said they were ok for 1000 miles. That is the key that either all those lifters have an issue or he has a common problem with that block.
It has pressure and oil coming out from all the rockers. After I adjusted them they did not move like the video.... I'm just gonna pull the heads and inspect every lifter and the cam. If nothing is wrong. I'm just gonna run it till it blows.
Posted by 4IDFOX (Member # 9921) on
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Call Comp and talk to them. They just replaced a set of rockers that where tightening up and going away after only 1 hour of dyno time. They were aware of the problem with a batch of there rockers. Could be the same with some of there lifters also.
They do not make these things. They are made by someone else with there name on them. The only thing they make are cams. I am not a fan of comp products.
Are you sure the noise isn't rockers.
How much preload are you giving the lifters ?
How are you adjusting preload ?
[ 2014-08-10, 04:49 PM: Message edited by: 4IDFOX ]
Posted by warhorse58gt (Member # 7702) on
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Just wanted to throw this out there. You only need to take the intake off to check lifters. You don't need to pull the heads off.
Posted by Pure Stang (Member # 7251) on
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quote:
Originally posted by warhorse58gt:
Just wanted to throw this out there. You only need to take the intake off to check lifters. You don't need to pull the heads off.
Don't I need to take the lifter out to Inspect a lifter?.. My lifters are aftermarket they will not come out because they hit the heads. I have tried taking them out with the heads and that's a no go.
Posted by Tom Renzo (Member # 13165) on
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How do you check a lifter by just pulling the intake and looking at the top of them??? They are not pumping up. They either are defective or not getting full oil pressure. My guess is they are defective. If you used aftermarket lifters as you clearly did they are a tad longer and need the head removed to either install them or remove them. That is as i posted is something i would not do or use those lifters for that reason. Simply put this is the garbage the aftermarket bestows on us and you need to know when not to use that crap. I do not want to start a pissing match but comp lifters are GARBAGE. Just My opinion.
[ 2014-08-12, 02:53 AM: Message edited by: Tom Renzo ]
Posted by hurting your feelings (Member # 13641) on
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quote:
Originally posted by Tom Renzo:
How do you check a lifter by just pulling the intake and looking at the top of them??? They are not pumping up. They either are defective or not getting full oil pressure. My guess is they are defective. If you used aftermarket lifters as you clearly did they are a tad longer and need the head removed to either install them or remove them. That is as i posted is something i would not do or use those lifters for that reason. Simply put this is the garbage the aftermarket bestows on us and you need to know when not to use that crap. I do not want to start a pissing match but comp lifters are GARBAGE. Just My opinion.
You may see the hydraulic part of the lifter aka the plunger stuck down in the bore.
Some folks need to see the bad part to believe it.
Posted by Pure Stang (Member # 7251) on
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quote:
Originally posted by Tom Renzo:
How do you check a lifter by just pulling the intake and looking at the top of them??? They are not pumping up. They either are defective or not getting full oil pressure. My guess is they are defective. If you used aftermarket lifters as you clearly did they are a tad longer and need the head removed to either install them or remove them. That is as i posted is something i would not do or use those lifters for that reason. Simply put this is the garbage the aftermarket bestows on us and you need to know when not to use that crap. I do not want to start a pissing match but comp lifters are GARBAGE. Just My opinion.
That's why I said if I would have known this was going to happen I would have never gotten this type of lifter. I did not assemble the engine.
Posted by Tom Renzo (Member # 13165) on
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If the lifter was stuck down he would not have that spring effect when he pushed down on the rocker. As i said there is absolutely no reason to look at those lifters. They belong in the garbage or dumpster whatever fits you trash needs. If in fact the lifters were totally collapsed and not just not pumping up then he would not have the spring action he posted in his video. Get the tools out!!! It is party time. Good luck.
What sucks is this would have been a simple fix if the lifters are the issue. And if those lifters were not used. They would have just popped out without removing the heads. The price paid by aftermarket junk.
[ 2014-08-13, 08:35 AM: Message edited by: Tom Renzo ]
Posted by 68dustin (Member # 5388) on
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-
[ 2014-08-13, 09:48 AM: Message edited by: 68dustin ]
Posted by hurting your feelings (Member # 13641) on
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quote:
Originally posted by Tom Renzo:
If the lifter was stuck down he would not have that spring effect when he pushed down on the rocker. As i said there is absolutely no reason to look at those lifters. They belong in the garbage or dumpster whatever fits you trash needs. If in fact the lifters were totally collapsed and not just not pumping up then he would not have the spring action he posted in his video. Get the tools out!!! It is party time. Good luck.
What sucks is this would have been a simple fix if the lifters are the issue. And if those lifters were not used. They would have just popped out without removing the heads. The price paid by aftermarket junk.
Go back a read where he said all but one rocker could be re-adjusted
Posted by Tom Renzo (Member # 13165) on
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A quick look at his video clearly shows a lifter that is not pumped up. So you can look at it till the cows come home they all have to be removed and checked on a bleed down lifter tester. Clearly that is what is happening here unless he has an issue with oil delivery to the lifter gallies. So time to break out the tools and find out the issue.
Posted by Pure Stang (Member # 7251) on
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What kind of lifters should I get?
Posted by Tom Renzo (Member # 13165) on
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FORD.
Posted by Pure Stang (Member # 7251) on
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Originally posted by Tom Renzo:
FORD.
Just stock lifters? I was told to upgrade because of the size of my cam. And that the body of it wouldn't handle revs cam size ect.
Posted by Tom Renzo (Member # 13165) on
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Most cam grinders use all the same lifters. They contract from the cheapest vendor normally. We use stock lifters in chevys Dodges and fords. The cam is not the issue with lifters. It is the Valve spring pressures. Normally Performance engines use dual valve springs putting extra loads on the lifters. But i run a 658 Lift cam in my LS3 and use stock chevy lifters. Your cam is not that big as i read the post. I asked for the specks but you did not post them. .Ford does make a high performance lifter as i remember. Bubbed as an anti pump up unit. I really could not explain what an anti pump up lifter is as i was never able to tell the difference one bit. Anti pump up just another BS story from the aftermarket crap selling point.
[ 2014-08-13, 06:31 PM: Message edited by: Tom Renzo ]
Posted by hurting your feelings (Member # 13641) on
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Howard there made by morel.an what is your rpm range you shifting at.
Posted by Tom Renzo (Member # 13165) on
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Lifters do not care about RPM . I shift my camaro well in to the 7500 Rpm band with absolutely no issues. Why would the lifters care about RPM BAND????? I shift my 331 at 8100-8500 with no issues whatsoever.Most of us know who makes the lifters.
http://www.adperformance.com/index.php?main_page=index&cPath=191_286
[ 2014-08-13, 06:36 PM: Message edited by: Tom Renzo ]
Posted by hurting your feelings (Member # 13641) on
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quote:
Originally posted by Tom Renzo:
Lifters do not care about RPM . I shift my camaro well in to the 7500 Rpm band with absolutely no issues. Why would the lifters care about RPM BAND????? I shift my 331 at 8100-8500 with no issues whatsoever.Most of us know who makes the lifters.
http://www.adperformance.com/index.php?main_page=index&cPath=191_286
Because I just want to known what his rpm range is.is that a problem for you super tech?
Posted by Tom Renzo (Member # 13165) on
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Actually thank you as i am a super TECH. I hold 28 ASE certifications and i am also I car certified. And here is the rewards
[ 2014-08-13, 06:54 PM: Message edited by: Tom Renzo ]
Posted by hurting your feelings (Member # 13641) on
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quote:
Originally posted by Tom Renzo:
Actually thank you as i am a super TECH. I hold 28 ASE certifications and i am also I car certified and you???
8 ask some else certs. an a California emissions inspection license for the last 15 years.dealer trained ford, Mercedes Benz, an Toyota technician an going now I my fourth brand this year after retiring 2 years ago.
Posted by Tom Renzo (Member # 13165) on
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So does this mean we are buddies. Or we can call it a day and get along. Ok so you are a BENZ GUY. How about this First CLA 45 in the country and i love it. After 40 miles of driving it with it's bleak 355 Hp it now produces 480 AWHP. Not bad. And yes the warranty is definitely VOID. But what do i care as i build these for MB after they are imported and get blown away by a camaro, So MB uses me as there vendor. Thank you now lets get along. We can do more good working together, Thanks Tom
First thing i did was drop it one inch. Then the ponies needed to be improved as you can see Tom Jr did the rest of the body for uniqueness,Even down to the color of the brakes and did the wheels also. Notice the black on the window trim which we changed, Hay have a great day Sir. We love this car. People have no clue what it is. We blow away those turbo porches with regularity. On the highway a Porsche is dead meat. And it is the fast ones not the NA ONES!!
[ 2014-08-13, 07:26 PM: Message edited by: Tom Renzo ]
Posted by Pure Stang (Member # 7251) on
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Ok I'll clearify a couple things. I ment spring pressure not the cam. My cam is matched for these springs. Also I shift at 6500-6700. But usually 6500.. I was told by gromm racing (which is one of the best shops in the bay) to get the comp cam short travel lifters because of my quick reves, high reves, and spring pressure.... I wanted good quality parts which almost seems like it's biting me in the ass right now.
Posted by Pure Stang (Member # 7251) on
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quote:
Originally posted by Tom Renzo:
Most cam grinders use all the same lifters. They contract from the cheapest vendor normally. We use stock lifters in chevys Dodges and fords. The cam is not the issue with lifters. It is the Valve spring pressures. Normally Performance engines use dual valve springs putting extra loads on the lifters. But i run a 658 Lift cam in my LS3 and use stock chevy lifters. Your cam is not that big as i read the post. I asked for the specks but you did not post them. .Ford does make a high performance lifter as i remember. Bubbed as an anti pump up unit. I really could not explain what an anti pump up lifter is as i was never able to tell the difference one bit. Anti pump up just another BS story from the aftermarket crap selling point.
I'm sure the body of the ls3 lifters are different than mine... As far as specs of the cam I don't post them because that's something I don't want to share with the public. If you really want to know pm me and I'll tell you.
Posted by hurting your feelings (Member # 13641) on
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quote:
Originally posted by Pure Stang:
Ok I'll clearify a couple things. I ment spring pressure not the cam. My cam is matched for these springs. Also I shift at 6500-6700. But usually 6500.. I was told by gromm racing (which is one of the best shops in the bay) to get the comp cam short travel lifters because of my quick reves, high reves, and spring pressure.... I wanted good quality parts which almost seems like it's biting me in the ass right now.
Makes sense why told to get those lifters. Have talk to gromm racing about your problem. I take they were the ones to assemble it for you.
Posted by Pure Stang (Member # 7251) on
:
quote:
Originally posted by hurting your feelings:
quote:
Originally posted by Pure Stang:
Ok I'll clearify a couple things. I ment spring pressure not the cam. My cam is matched for these springs. Also I shift at 6500-6700. But usually 6500.. I was told by gromm racing (which is one of the best shops in the bay) to get the comp cam short travel lifters because of my quick reves, high reves, and spring pressure.... I wanted good quality parts which almost seems like it's biting me in the ass right now.
Makes sense why told to get those lifters. Have talk to gromm racing about your problem. I take they were the ones to assemble it for you.
Yes everything was assembled and fully balanced there. Even the pistons where weighed and worked on to make everything weigh the same lol. Just sucks that I spent all this money to have this problem just 1k miles down the road. If it's something more serious I'm going to scrap everything but the hci and get a dart block.
Posted by hurting your feelings (Member # 13641) on
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I would call gromm in the morning an tell what's going on you may have a parts warranty on the lifters.
Posted by Tom Renzo (Member # 13165) on
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PS i do not understand your reasoning for not posting cam profiles but that is your right. What has to be done here is you need to find out why those lifters are not pumping up. Clearly they did for 1000 miles so one has to wonder why this happened. Once again either the check valves in the lifters failed or they are not getting proper oil pressure to them. I said yopu should contact the maker of these lifters no dought. But it is not likely they will admit they have an issue. But then again you never know. Also why in the world did they make the bodies longer is beyond me. And as far as using LS lifters i never suggested that i just gave you an example that we use factory units with no issues. Good luck .
If memory serves me i think there is a way to make those lifters removable by some slight grinding of reliefs to the head. I have never done it but i seem to remember Joe over at Ford Competition engines talking about that. I also contacted Joe on your issue and all he builds is ford racing engines and he never uses those lifters. have a great day guys.
Posted by hurting your feelings (Member # 13641) on
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Street races like to keep everything on the down low.so it makes it a hustlers game when racing.
Posted by Tom Renzo (Member # 13165) on
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OK i got it. Thanks!!
Posted by Pure Stang (Member # 7251) on
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Heads, lifters and push rods check out good. So I'm just going to pull the engine and inspect everything. Sucks since the engine just finished breaking in.
Posted by Pure Stang (Member # 7251) on
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For those that helped car has been running great.... I know I didn't update it a little late but you guys would not guess what it was.... Oil pick up tube broke and was hitting the rotating assembly haha.
Posted by hurting your feelings (Member # 13641) on
:
quote:
Originally posted by Pure Stang:
For those that helped car has been running great.... I know I didn't update it a little late but you guys would not guess what it was.... Oil pick up tube broke and was hitting the rotating assembly haha.
That's crazy wouldn't even thought about that.
Posted by Pure Stang (Member # 7251) on
:
quote:
Originally posted by hurting your feelings:
quote:
Originally posted by Pure Stang:
For those that helped car has been running great.... I know I didn't update it a little late but you guys would not guess what it was.... Oil pick up tube broke and was hitting the rotating assembly haha.
That's crazy wouldn't even thought about that.
Right! After switchng the pick up tube everything was great. I've never had this happen or even heard of anyone having this problem.
Posted by 90GT510 (Member # 9199) on
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You picked the gayest mercedes out of them all. smh man card revoked!
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