This is topic Started up my 347 first time last night, problems . . . in forum Tech Talk at Northern California Ford Owners  .


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Posted by phil a (Member # 3596) on :
 
hey guys,

i just finished my car yesterday night, fired it up and took it around the block. first thing i noticed was the whole car was shaking so bad (i have poly motor/tranny mounts) that the cd in the player couldn't even play w/o skipping. is this what to expect from these mounts?? it's not hte balancer, or anythingelse, i just put this motor together yesterday.

also, when i got back from the drive, i tried to start it again, and nothing would happen. i mean, the starter would spin, but the motor wouldn't crank. one of my buddies suggested the bendix went out or something? i searched on corral and couldn't find an answer.

any help would be awesome!

thanks,
phil
 

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Posted by 92stangLX (Member # 3252) on :
 
I have poly motor and tranny mounts and don't have really bad vibration problems. What is your combo? Are you running a big cam? Does the vibration happen all the time or just at certain RPMs?

If the starter just spins and the motor doesn't crank then it could be the solenoid is shot. I would first check the connection on the started (to the solenoid) to see if it has come loose. On the mini-torque starters it is connected with a spade connector and I could see how that could come loose if you are having a lot of vibration.

Are you running long tubes?
 

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Posted by Fostang (Member # 3752) on :
 
Did you use a used starter on a new motor?

It's probably dead....

Not enough juice to crank it since it has full compression.

Motor shaking hmmm firing order right? maf matches injectors? running rich or lean?
 

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Posted by AJBlackGT (Member # 3936) on :
 
Have you set the timing on the motor yet?
That could cause the shake
 

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Posted by 93lx342 (Member # 1793) on :
 
make sure all wires are in the correct order.and make sure timing is right.
 

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Posted by phil a (Member # 3596) on :
 
thanks guys!

well, i figured out the starter issue, it's cranking fine now.

the vibration is still unsolved though. the MAF is cal'd to the injectors, the timing is pretty close, haven't really worried about it that much since i knew i wasn't gonna drive it just yet, but it's not far off enough to cause it to shake this bad. everything's balanced to 50oz too

anyway, thanks again

phil
 

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Posted by cvr 5.0 (Member # 2962) on :
 
external balanced or internal balanced??????
 

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Posted by SilverLX351 (Member # 3207) on :
 
did you put the balancer on right? sounds like its not all 50oz balanced...
 

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Posted by forced331 (Member # 1270) on :
 
Isn't 347 and 331 supposed to balance at 28oz. When I first started my motor I had a bad vibration could not figure it out until I looked at the spec sheet and it called for 28oz balance and they had sent me 50oz balancer and flywheel. I reinstalled the balancer and flywheel with 28oz and the engine ran smooth. Just double check and make sure the balance is correct. Goodluck!
 

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Posted by AJBlackGT (Member # 3936) on :
 
I'm with forced on this one
I think most stroker manufacturers balance their assemblies to 28oz.
Did your machinist have to add an assload of mallory to get it balanced?
 

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Posted by BlueOvalRacing (Member # 1531) on :
 
My 331 is balanced to 50 oz. with no Mallory Metal. The front and rear counterweights are drilled out quite a bit.

[ January 24, 2005, 06:56 PM: Message edited by: BlueOvalRacing ]
 

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Posted by forced331 (Member # 1270) on :
 
Most of everyone I ran in too or seen online had 28oz balancing on 331 and 347's. Isn't 50oz balance stock?
 

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Posted by BlueOvalRacing (Member # 1531) on :
 

quote:

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Originally posted by forced331:
Most of everyone I ran in too or seen online had 28oz balancing on 331 and 347's. Isn't 50oz balance stock?

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