[V8Vairs] I wiped a cam lobe. Now what?
Bryan Blackwell
bryan at skiblack.com
Wed Jun 24 11:37:53 EDT 2009
Almost certainly due to a lack of ZDDP. The new SM "Energy
Conserving" oils have reduced ZDDP (roller lifters don't need as
much). There are several oils out there with enough for flat tappet
cams, you're looking for about 1200 ppm. You can get additive
bottles of the stuff as well.
--Bryan
On Jun 22, 2009, at 8:28 AM, Paul Siano wrote:
> Aluminum Chevy V-8, mechanical lifters and too much spring
> pressure. Am replacing with hydraulic roller lifters and more
> normal spring rates. Any suggestions for block prep to get rid of
> lingering metal? I will pull a couple of rod and main bearings to
> look for problems. Multiple oil filter changes after it runs?
>
> This happened using Mobil-1. It has been suggested that it is too
> slippery to rotate the lifters. Has anybody else heard that?
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