Tonight I was pulling the oil pan off of a car we were working on to find four pieces of what used to be a thrust washer. I was actually only pulling the oil pan because it was warped and leaking around the gasket. Of course once I found the thrust washer in pieces I went ahead to pull the oil pick up, windage and #4 main. To find what was left of the opposing sides thrust washer.. There wasn't much left it was ground down to about half. the thrust washer that wondered out of place obviously got flug around a bit as the under sides of the pistons ar a bit nicked up. The sleeves appear fine and other then that there are some scrapes on the counter balences (3 and 4). I will try to get some pics in a few days if anyone wants to see. I'm not really sure what would cause this but I have two ideas which are over reving and the motor not being align honed prior to assembly. The motor was assembled by a knowledgable person and I don't know how he could have caused the problem. I searched and found a prior occurance but it was a stock motor.. which this on the other hand is a B20 vtec with weisco pistons,eagle rods and a greddy turbo kit. Anyone had this problem? I have a feeling this guy will want us to just put some thew thrust washers in and let it go.. I have a feeling thats exactly what one of the rods will decide to do as well. One more thing is that the car also had a broken gear selecter within the tranny.. whatever that thing is technically called I don't know.. I am talking about the piece that selects the gears with the forks and is controlled by the linkage. I guess it's possible these two aren't related. The car still ran quiet..

 

I realize your build uses an automatic but sometimes an improper adjusted clutch (no free play) can wear out the rear thrust quickly as it is constantly loaded. When it gets too warn out, it gets thrown into the pan. Maybe your automatic is causing a loading problem on the crank.
If you swapped cranks in your build, and the thrusts in the new crank were torn up, that could cause the wear problem also.

 

No, it's a manual. Earl do you think that replacing the throw out bearings with out tearing the block down and doing a complete assesment of the damage would be a total loss? It's not my motor and I haven't had this problem before so I want insight from some one who may truly know. Thanks for your help.

 

Often the crank thrust face on the crank wears as well as the bearing.
Glenn

 

could a twin plate clutch ,cause that much wear for the thrust washer to wear and fall out??

 

umm bro this thread is 3 years old!! LOL

 

LOL