Engine rattle help me diagnose

tbird187

Founding Member
May 29, 2002
392
1
0
Indiana
Hey guys trying to figure out the noise my engine is making.. It sounds like a rattle/knock but only at around 2k or under partial throttle goes away at WOT i might have to take a video of it to help describe it better... any ideas?
 
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Not really sure. Are they stud rockers??? or the factory ones? Ive actually only had experience adjusting shaft rockers. Kinda skipped the whole pedestal/ stud rocker stage.


But correctly adjusted the rocker should be just loose enough to spin the push rod. when its at zero lift. Is it a chatter from the top of the motor???