Flywheel or converter causing vibration
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From: North East, MD
Flywheel or converter causing vibration Do converters come balanced or flywheels? I put a Circle-D in, CAT flywheel and a Strange driveshaft. I get vibrations that will rattle your fillings out. I am starting to suspect maybe the flywheel or converter now. Would these create vibrations like that? I have plans to swap the driveshaft but have had the new piece out and rotated 180 and that did nothing.
The converter is balanced. Not saying things don't happen, but it is rare. The flex-plate should not have any weights on it. Meaning the engine is internally balanced. Maybe you got the wrong flex plate? A quick check to eliminate the converter it to unbolt it, slide it towards the tranny all the way. Make sure it is not touching the flex-plate. Start up the car, keep it in park and see if the vibration goes away. Do not run it to long or rev it to high. The converter pilot is not designed to spin in the crank and might be damaged. So keep it under 2000 RPMS and less than 1 minute. If the vibration is gone, it's my fault and I will fix it. If it is still there it is the flex-plate or something engine related. Good luck and call if you have any questions.
713-895-8834
Chris
713-895-8834
Chris
Also for got to ask, does it do it in park and neutral sitting still. I assumed that is what you are talking about. If it only does it when you are driving, then it is probably the driveshaft.
Chris
Chris
Thread Starter
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From: North East, MD
I will check just idle not moving. If it doesn't at any RPM in park then it isn't flexplate or converter? I only know while driving it hums like crazy and 90-100 MPH it feels like the car is coming apart
Thread Starter
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From: North East, MD
I revved it to 5k RPM in park and nothing. At low speeds it isn't really there even when flashing the converter. It follows my MPH. As I go faster I get more vibration. I asked for lift time this evening so we are swapping the stock driveshaft back in and checking for anything loose. Also when doing 70 or so if I throw it into neutral it still does it. In a dumb way I am hoping it is the driveshaft. I hate the thought of pulling the trans to do the other things.
I am 99% sure it is the driveshaft. All the clues point to it. If there is zero vibration while in park that eliminates motor, flex-plate, converter and half of the transmission. So it is either the driveshaft or tires. Since you just swapped the driveshaft that is probably it. Good luck and keep us posted.
Chris
Chris
Thread Starter
11 Second Club
iTrader: (24)
Joined: Mar 2008
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Likes: 2
From: North East, MD
It was the driveshaft! Love this converter so everyone go with Circle-D. Also means the Cat flywheel and Strange driveshaft are good pieces.
We didn't put the clips on the rear U-joint. Dumb mistake!
We didn't put the clips on the rear U-joint. Dumb mistake!
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my car vibrates like a maniac when i put it in reverse from park, it wont do it in drive, only while im reversing it or if i punch it from a dead stop. If feels like its coming from where by the trans, gotta check if my trans mount is good or if the bold got loose. any ideas what else it can be?
yeah no crap that would suck and im glad its not the cat flexplate i just bought one and i dont have the car all back together yet so i started worrying for a second lol
