So I spun a rod bearing... - Page 2 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


1987-1991 Parley with regards to your 1987 to 1991 Bonneville, Olds 88 or Buick Le Sabre Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 09-22-2004, 12:54 AM   #11
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Thank you for the encouraging words, everyone, I love you guys .

I think that Bonneville is just going to be scrapped out. I've already spent way too much on it. My parents are giving me their 1990 LE (with about 40k less miles on it), and getting them a newer car, so I'll be swapping parts from my Bonneville to theirs to make one mint condition 'ville, and then parting out the rest .

I'm almost nervous to drive them now. I don't know how I could have spun a bearing like that, I'm not TOO hard on the car. I ran it to redline off the line every now and then, and I think I've done like... 1 burnout in the car ever :P.
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Old 09-22-2004, 09:22 AM   #12
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Something I mention to my family is never to just start the car, drop in drive, and go particularly when it is cold out, it takes a few seconds to get pressure everywhere. You need to also drive gently for a mile or two. Fortunately in our development it is at least a half mile before anything over 20-25 is reasonable. I also always run 10W-30 as the 3800 is built to very tight tolerences and should not need a heavier weight which could be slow to reach far points.

That said, bearing failure usually results from one or more of four things:
1) improper clearances
2) oil blockage
3) excessive wear
4) excessive heat

None of which are normal. Usually examination of the bearing shell will reveal which it was.

Despite all of that, the first time our car experienced sub-zero weather at 85,000 miles (and had been filled with 5w-30 in anticipation), it dropped the two center cam bearings. It happens.
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Old 09-23-2004, 04:06 AM   #13
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Weird. I am one of the few people I know that actually let the car warm up for a minute, and then wait for it to completely shift into drive before giving it gas.

I kept 10w-30 in it, changed religiously every 3000 miles or before. The car never had any head problems at all. Since I live in Alabama, it never had any warming-up problems either

Oh well.
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