Quote:
Originally Posted by SDCoupe
Yikes. I'm afraid to check. Are there any warning signs? Besides an oil analysis?
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If you're at or near 50k miles and haven't done UOA I'd just pony up the 1.6-18k and replace the bearings. W/O a baseline you could see low lead and it could give false assurances. The lead just may be gone!
A new motor or rebuild (assuming rods stay in the block) is 6-8x that cost. Yes it's expensive. But there's expensive and there's
expensive.
I've done two this year. Z4M with 44k miles and a Z3M with 80k miles. Both showing sig signs of wear. (Now way if knowing how the prior owners drove, but the Z4M lived in SF for its early life, hills, short distance, cold engine. The Z3M was owned by an enthusiast/track rat who was precise with warm up and judicious with keeping under 6-7k even on track.)
I'd just figure in doing this every 40-50k miles. Keep the paperwork is a huge selling point if/when you need it, and you'll sleep better at night and not worry when driving.