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Originally Posted by IHateHacks
Ummm 7M's have lifters. What do you think the shim sits on? A lifter. We have mechanical lifters in our engines, not hydraulic.
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Perhaps in the most litteral sence ,the TSRM calls it a lifter ,but I'd just call that a bushing. In any case ,we agree a dry top end lead to premature wear. I got a refurbished head on ebay for $450 that came with everything except camshaft oil seals. With the increased open areas around the moving parts the oil has less restriction and hence lower pressure.