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The Terminator
Engine/Tuning
head tick?
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<blockquote data-quote="Storm728" data-source="post: 13929967" data-attributes="member: 130790"><p>its definitely in the head. pulled fuel from suspect ones no change. took a crazy sensitive stethoscope to the manifolds, block, blower, injectors, heads, cam covers. pinpointed right on #6 upper cam cover bolt. it sounds like a lifter or something associated with one of the intake valves. not burning oil, gone while cold but comes around when hot. drowns out when the engine revs up. but if i rev with the stethoscope on the bolt i can hear it staying about the same volume but speeding up. id say loose valve seat, bad lifter,roller rocker or maybe guide but i thought you burn oil with that issue.</p></blockquote><p></p>
[QUOTE="Storm728, post: 13929967, member: 130790"] its definitely in the head. pulled fuel from suspect ones no change. took a crazy sensitive stethoscope to the manifolds, block, blower, injectors, heads, cam covers. pinpointed right on #6 upper cam cover bolt. it sounds like a lifter or something associated with one of the intake valves. not burning oil, gone while cold but comes around when hot. drowns out when the engine revs up. but if i rev with the stethoscope on the bolt i can hear it staying about the same volume but speeding up. id say loose valve seat, bad lifter,roller rocker or maybe guide but i thought you burn oil with that issue. [/QUOTE]
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