IHADAV8.com - Turbo Buick Tech, and Nonsense
Tech Area => General Buick Tech => Topic started by: 1986turboregal on June 14 2013, 10:09:22 PM
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Title says it all. Basically restored my 86 over a period of a year (paycheck after paycheck) only
To trash 2 thrust bearings in 6000 miles. New one is in (installed properly) and transmission charge pressure dropped from 65 to 25 (!!!!) I just changed the oil for the first time since new thrust bearing and found same tiny metal particles in oil. :(. Let me give you guys a little background on driveline.....
Motor 50k on it, put new trans in behind it with ck performance 3000lu. 6,000 miles gp by and I break the crank between #1 and #2 rod journals. O.K, I can work with this. Buy another crank, get all machine work done and in 1000 miles motor trashes #2 and #3 mains, along with thrust bearing TRASHED. wow, ok. So pull it out again, this time getting whole assembly balanced and align honed the mains.....moto r has not trashed any bearings since EXCEPT the thrust. First in 2000 miles, second in 4000 (not as bad pf shape, but the A series bearings in) and now im on my third. Hopefully it was just leftovers. :( sucks so bad. 21 years old and love this car with all of my heart...if its a block issue im going to be pissed.
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It may be that the current crank has a messed up thrust surface and that is the problem