View Single Post
Old 11-09-2012, 11:03 PM   #22
vintagerider
Beastly Adventurer
 
vintagerider's Avatar
 
Joined: Nov 2005
Location: the west
Oddometer: 1,890
Two suspected causes of cam follower damage are valve lash too tight and lubrication failure. By the looks of those heavy varnish deposits there was overheating and/or extended oil change interval. The engine calls for API SF/SG. Newer automotive oils are SL/SM with low levels of ZDP.
vintagerider is offline   Reply With Quote