I used a stethoscope and the sound is coming from #4 intake side for sure, I even checked the oil pressure to make sure the pump wasn't failing and i was getting 34 psi at idle and 70 psi at 3000 rpm. I pulled the valve springs off on #4 thinking maybe the inner one was cracked but nope. Since ive taken apart the head 4 times i know its not valve lash since when you pull the cams you are supposed to back off all the valve adjustment nuts all the way so u need to re lash every time u put it back together and im lashing at .007 intake and .008 exhaust. I did a comp test and all the cylinders are within 10 psi of each other.

Any ideas??? only thing i can think of is that its coming another part of the head and the sound is traveling down the cam but its intake side for sure and if it was a bent valve i would have found it in the comp test. could carbon build up on the valves make a random ass loud ticking?? kind of sounds like no oil metal on metal but if i run the car, then turn it off and pull the cover everything is well lubricated.

Thanks guys

or you're #4 rod might be going. this happened to me due to oil starvation, it ticked quiet and then progressed and ticked very LOUDLY until it evetually spun a bearing and took a shit. ( I hope this isn't the case)

'95 del sol si - jdm d15b sohc VTEC, megan-racing headers, cat back - 2.5" magnaflow, CAI, chipped p28, crower camshaft, skunk2 cam gear, rebuilt head and plenty of suspension goodies <--- one fun sohc

formerly d[sick]sTeena

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'95 del sol si - jdm d15b sohc VTEC, megan-racing headers, cat back - 2.5" magnaflow, CAI, chipped p28, crower camshaft, skunk2 cam gear, rebuilt head and plenty of suspension goodies <--- one fun sohc

formerly d[sick]sTeena