Re: someone needs qualified help : thrust bearing problem

["Joe Doty" <rocco2nr@hotmail.com>]

The exact same thing had happened to the 9A block that I had bought, I'm not 
sure exactly how it would get like that.  I suppose if you had a heavier 
pressure plate and had your foot on the clutch all the time then it could 
happen.  But this was not a high mileage block.  Fortunately in my case the 
bearing seat did not get damaged but the crankshaft was shot.  If the 
crankshaft bearing surface that the sides of the thrust bearing ride on have 
been damaged you will have to pull the crank (basically the whole engine), 
but if it hasnt then you can replace the thrust bearing rather easily.

Joe

>Dirk,
>
>The thrust bearing he is talking about is actually the rear main bearing, 
>on
>this bearing the surface wraps around the journal end cap.
>Look at the attached picture the large bearing to the left, what this does
>is reduce the amount of crankshaft walk. Yes these will go bad after a
>period of time, just think about how many times you use your clutch a day
>when driving the car and the amount of force that is necessary to 
>disengauge
>the clutch. All that force is transfered to that load area on the rear
>bearing , so is it common for a vehicle with 150K or poor maintainence to
>fail I would say yes. Also the amount of play he is talking about could
>cause other failures on the bottom end.


_________________________________________________________________
Get your FREE download of MSN Explorer at http://explorer.msn.com/intl.asp


--
Email LIST problems to: scirocco-l-probs@scirocco.org.
To unsubscibe send "unsubscribe scirocco-l" in the message to majordomo@scirocco.org