Head tick or worse

blacknbluecobra

Sprayed and Dismayed
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Well got a noise coming from passenger side valve cover from cyl 4. Unplug the injector noise goes away. Doing a compression test tomorrow. Taking the filter off and cutting it open. How screwed am I? Hope it's not a scuffed piston. Will compression test show everything I need to know?
 

MG0h3

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Not necessarily.

However the fact that killing the cylinder stops the noise sucks. In my experience, that generally indicates a problem with the slug--rod/piston. Ive never heard of valvetrain noise changing by killing the cylinder.
 

blacknbluecobra

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So say I'm going to have to rebuild thing thing. Ball park figure I'll have in it? I'll probally just hustle some cash together and have L&M build me a motor
 

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