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Go Back   SR20 Forum > Main Forums > SR20DE Technical Corner



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Old 01-05-2006, 10:34 PM   #1 (permalink)
Smoke Tires Not Drugs

 
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Valve Question

New to the site and needing help and experience.

If the intake valves in the head are oversized 1mm and you have flat top pistons
(10:1) comp. do you think the intake valve will hit the piston if we advance the intake cam 2.5 degress using the JWT cam sproket?

Also how do you advance it : move the cam or just the cam sproket.

Thanks
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Old 01-06-2006, 12:39 AM   #2 (permalink)
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dude...
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Old 01-06-2006, 12:40 AM   #3 (permalink)
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Why don't you just advance the timing 2.5 degrees using the cam gear and then just turn the engine over very slowly and carefully to see if the valves hit at all.

Thats what I'd do *** to tell the truth, I really have no idea otherwise.

I've never dealt with adjustable cam sprockets but i'm guessing that the sprocket stays still (because the timing chain would be around it) and you turn the cam somehow which would be attached to a moveable inner part of the sprocket.
however, once again that is just a guess.
good luck
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