cop on my back
forum member
So long story, but I won't say it all here, but there is a very interesting thing I have experienced and would not believe it unless I saw it.
GF crashed car, lateral impact on a barier with the side of the car and tranny came in to contact with the barrier. Car gets fixed at body shop. Pick car up, looks beautiful, got half a block away and returned car. Massive, I mean massive vibration in the drivetrain at 2500-3000 rpm. Through my own quick troubleshooting I narrowed it down to a flywheel or clutch issue.
I take car to a transmission place and tell them to remove the transmission and look at the flywheel. I get a call a couple hours later and the guys says it isn't the flywheel, it is the exhaust causing it. (hard mounted to body where the side pipes come out). I said it is the same as it was prior to accident. He still said that was the issue. (Charge me an hour labour, $98)
So I take it to a muffler shop, they adjusted exhaust and said the vibration was still there (no charge)
So I take it to yet another shop and tell them to pull tranny (I didn't trust the first shop anymore). And we find the problem is the SPEC aluminum flywheel. The GF had the clutch depressed at the time of the collision and the lateral impact shifted the steel wear ring of the flywheel enough to knock it out of ballance. Enough in fact that the 20 screws holding the steel plate in place were pushed sideways in the aluminum leaving thread witness marks in the clearance holes. I would never have guessed that could happen, but it did.
Pictures to follow later tonight.
GF crashed car, lateral impact on a barier with the side of the car and tranny came in to contact with the barrier. Car gets fixed at body shop. Pick car up, looks beautiful, got half a block away and returned car. Massive, I mean massive vibration in the drivetrain at 2500-3000 rpm. Through my own quick troubleshooting I narrowed it down to a flywheel or clutch issue.
I take car to a transmission place and tell them to remove the transmission and look at the flywheel. I get a call a couple hours later and the guys says it isn't the flywheel, it is the exhaust causing it. (hard mounted to body where the side pipes come out). I said it is the same as it was prior to accident. He still said that was the issue. (Charge me an hour labour, $98)
So I take it to a muffler shop, they adjusted exhaust and said the vibration was still there (no charge)
So I take it to yet another shop and tell them to pull tranny (I didn't trust the first shop anymore). And we find the problem is the SPEC aluminum flywheel. The GF had the clutch depressed at the time of the collision and the lateral impact shifted the steel wear ring of the flywheel enough to knock it out of ballance. Enough in fact that the 20 screws holding the steel plate in place were pushed sideways in the aluminum leaving thread witness marks in the clearance holes. I would never have guessed that could happen, but it did.
Pictures to follow later tonight.
