spyderdrifter
15+ Year Contributor
- 5,422
- 854
- Jul 11, 2009
-
Somewhere in,
Colorado
I know were not supposed to be making posts for friends or whatnot, but I got confusion over a friends engine, so Im writing this anyway. Its for my own curiosity, as well as to help him out with the proper parts.
Anyway, he bought a 91 TSi AWD to build. I went over when I first met him and heard the terrible knock the car had in the bottom end. I told him not to attempt starting it again until after we had the chance to pull the engine out and inspect everything. Well, we found that the BSE stub shaft was sitting in his oil pan, nothing else is bad, WE LOOKED. But the reason why Im putting this in the drivetrain forums is because of his flywheel and clutch setup. Up to this point in my DSM life, every DSM Ive pulled apart and seen the clutch and flywheel on, those components have always looked the same regardless of AWD or FWD, 1G or 2G. I know theres a little difference, but not much. So I pulled his trans off and got the clutch cover/ pressure plate off. It looked good along with the friction disc. Then I noticed one of his 6 flywheel bolts was backed out at least 1/3 of its length. Then I realized they werent even the proper bolts, as seen in the pic:
DSMs dont have lock washers on these bolts, and are a lot shorter than these turned out to be. I then noticed that one of them was sheared off halfway into the crank.
I can most likely pull the broken part out, but Im concerned about the thread pitch of these non-DSM bolts, and how they may have screwed the pitch in the crank holes. And as you can see, the surface of the crank is a little chewed up from probably the flywheel bolts being un-torqued. In comparrison to all the times I've torqued my own bolts, and then had to remove them, these were like pulling bolts out of the valve cover.
In addition to this crap, I saw that the flywheel itself cant possibly be a DSM flywheel. Its completely flat with no step up around the outer edge for the pressure plate to mount to. WTF
Someone tell me if Im wrong for thinking that. The way I see it, is that with the pressure plate bolted down to this flywheel, the clutch disc is always engaged and cant be disengaged since the room it needs for free spin with the input shaft is no longer allowed. And theres no dowel pin hole for this flywheel either. Anyone got ideas for this?
Anyway, he bought a 91 TSi AWD to build. I went over when I first met him and heard the terrible knock the car had in the bottom end. I told him not to attempt starting it again until after we had the chance to pull the engine out and inspect everything. Well, we found that the BSE stub shaft was sitting in his oil pan, nothing else is bad, WE LOOKED. But the reason why Im putting this in the drivetrain forums is because of his flywheel and clutch setup. Up to this point in my DSM life, every DSM Ive pulled apart and seen the clutch and flywheel on, those components have always looked the same regardless of AWD or FWD, 1G or 2G. I know theres a little difference, but not much. So I pulled his trans off and got the clutch cover/ pressure plate off. It looked good along with the friction disc. Then I noticed one of his 6 flywheel bolts was backed out at least 1/3 of its length. Then I realized they werent even the proper bolts, as seen in the pic:
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DSMs dont have lock washers on these bolts, and are a lot shorter than these turned out to be. I then noticed that one of them was sheared off halfway into the crank.
I can most likely pull the broken part out, but Im concerned about the thread pitch of these non-DSM bolts, and how they may have screwed the pitch in the crank holes. And as you can see, the surface of the crank is a little chewed up from probably the flywheel bolts being un-torqued. In comparrison to all the times I've torqued my own bolts, and then had to remove them, these were like pulling bolts out of the valve cover.
You must be logged in to view this image or video.
In addition to this crap, I saw that the flywheel itself cant possibly be a DSM flywheel. Its completely flat with no step up around the outer edge for the pressure plate to mount to. WTF
You must be logged in to view this image or video.
Someone tell me if Im wrong for thinking that. The way I see it, is that with the pressure plate bolted down to this flywheel, the clutch disc is always engaged and cant be disengaged since the room it needs for free spin with the input shaft is no longer allowed. And theres no dowel pin hole for this flywheel either. Anyone got ideas for this?
