This is topic Vibe issue in forum Tech Talk at Northern California Ford Owners .
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Posted by 92-5.0 (Member # 5961) on
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i have been having a vibe problem for some time now. So, I have the tranny disconnected. I still have a vibe problem. I also noticed oil has been getting on my cluth due to a rear main seal leak. So I am going to install a new clutch and fix the leak. I have solid motor mounts, but the vibe issue I am having started prior to the install of solid motor mounts. I have already installed a new harmonic balancer and that did nothing. What else could I check? Maybe my flywheel? Any ideas?
Thanks,
J.
Posted by Hungry Hippo (Member # 537) on
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could be the flywheel. when did the problem start? could also be misfiring
Posted by BlackNGold (Member # 655) on
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How is your transmission diconnected?...If it's just the driveshaft that you took off to disconnect, then you might have a bent input shaft on the transmission...
Posted by 92-5.0 (Member # 5961) on
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OK.........I have the tranny completed removed. I am going to installa new clutch because like I mentioned, it has oil on it from the leak which I will take care of as well. I just installed a new flywheel as well. The stock original has small cracks on it all the way around. With the tranny all the way out, the car still has a vibe. I am going to remove the solid motor mounts and install stock replacements and see what happens. I do not know what else to do?
I think it may be internal. Looks like the only way to possibly fix it, is to rebuild the motor.
Any other ideas?
J.
Posted by 92-5.0 (Member # 5961) on
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1 more thing, the vibe is felt most at 3k rpm.
Posted by 89saleen (Member # 3083) on
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Are you sure it isnt a driveshaft issue? Swap in a different one & see if it helps.
![[Embarrassed]](redface.gif)
I didnt read the above- so wouldnt be that if its not even there.
Have you swapped clutches? They go outa balance too.
[ September 30, 2005, 03:36 PM: Message edited by: 89saleen ]
Posted by 5OHS5OH (Member # 4665) on
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Could you keep me posted, I think I have the exact problem you described. I sent you a pm.
Posted by six 5.0 (Member # 3153) on
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My old 5.0 had a heavy vibe at high R's. Ended up being the balancer on the Crank shaft due to a fucced up Harmonic balancer.
Posted by 5OHS5OH (Member # 4665) on
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I replaced my balancer, installed my rebuilt tranny, new clutch and resurfaced flywheel, but still had the vibration. Clutch in or out, didn't matter, the vibration increased with rpm's. I have the new motor mounts and brand new flywheel ready, just haven't had the time to install them.
Posted by Hungry Hippo (Member # 537) on
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i've read a lot about people getting flywheels balanced wrong or in the wrong boxes. its kind of scary actually because it's a pain to change
Posted by 88DroptopGT (Member # 2535) on
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Perhaps the flywheel.
If the clutch is out, exclude everything behind it then from attributing to the problem.
Check the bolts to the clutch fan, or removing the fan for a SHORT period of time and checking for that.
How about a shorter belt to rule out some accessories?
Check the pulley bolts as well to all of your accessories.
Posted by 92-5.0 (Member # 5961) on
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OK, I have a new clutch, flywheel, and new stock replacement motor mounts. I had solids in prior to the stock replacements. At idle and when I rev it, it feels better. I still have not taken it onto the highway for the true test. I have not messed with or checked the U/D pullies nor the fan/fan clutch. I already installed a new harmonic balancer prior to all of this. The new harmonic balancer helped a little bit. My old harmonic balancer was bad, so I hope I do not have any internal problems like six 5.0 did. Because after all I have done recently, I could only imagine that it would be internal. But I will see once I take it for a nice highway drive.
Posted by 92-5.0 (Member # 5961) on
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My car rides nice again. To be honest with you I am not sure as to what exactly fixed it. But I am sure the motor mounts helped alot. I have spoken to a few mechanics, and they told me what six 5.0 experienced, is common on 5.0 mustangs.
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