<VV> Noisy lifters

Matt Nall patiomatt at aol.com
Tue Jun 24 13:40:15 EDT 2014

Hello, You may recall the saga of mine regarding the cracking pistons in my 
140/turbo.It's back on the road again with new forged pistons, rebuilt heads and 
clarks roller rockers.The bottom end has about 13k miles on it since rebuilt in 
07 with"deep dimple" lifters, otto tb20 270 cam, american pi adjustable cam 
gear. Custom length pushrods.Trouble is, I cannot get the "deep dimple" lifters 
adjusted so that they are quiet. Sounds like an older 911, tappity tappity.This 
has been a problem since 07.I have good oil pressure, 30 psi at idle. 40 at 3k. 
Verified with multiple gauges.I have tried tried comp cams roller tip rockers as 
well as stock rockers to no avail. I have followed every method of recommended 
of adjustment. Static, running, 1/4 turn, 1/2, 1turn, shop manual etc.I suspect 
the lifters just leak down to much while running so that there is always 
lash.Any advice before I replace all lifters with new?If I do, sealed power? 
others?Thank you, Jim Cuneo65 corsa 140/turbono


Are you sure you don't have a set of Rhodes  lifters?  They are designed to do that....for engine with large overlap cams.

Matt Nall
Charleston, Oregon



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