Cam swap HELP!!!!
Cam swap HELP!!!! Okay just got done putting an LS6 cam springs and pushrods in my car car runs great and everything. Only problem is it has valve chatter or something checked all the soilpacks and plugs and everything. But its still chattering and chatters faster with rais of the rpms. Also my oil pressure is quite a bit lower than it was previously...
Did you mess with the oil pump any or install a new one? What springs are in the car, what pushrods. You do know the ls6 cam has a smaller base circle requiring you to run 7.450" pushrods correct?
22ft lb on the rockers yes. turn it over then rettighten no. Stock seats retainers. Pushrods are same length as stock ls1's. Oil pump o ring yes pretty sure but not 100% positive no. I just really hop I dont have to pull that waater pump and harmonic balancer off again its a bitch!
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Valve chatter would come from incorrect pre-load/pushrod length or the timing is off and the valves are hitting the pistons, which happened to me a while back and fubar'ed the whole engine. Make sure you figure out exactly what's wrong by taking a look rather than just guessing.
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Originally Posted by 777
Did you mess with the oil pump any or install a new one? What springs are in the car, what pushrods. You do know the ls6 cam has a smaller base circle requiring you to run 7.450" pushrods correct?
Originally Posted by LS144
Pushrods are same length as stock ls1's.
didnt take off the pickup tube to the oil pump. Im leaning more towards the problem of longer pushrods....Im almost positive its in time the dots are lined up and everything. But would pushroda make the oil pressure low?
ok so what could cause something like that?
Obviously your timing was off. Make sure you have the sprockets dot to dot at top dead center. Install 7.450" pushrods. If you took the oil pump off make sure you buy a new o-ring and replace it. That should solve ALL of your problems. Low oil pressure from o-ring. Ticking from pushrods.
Oh and I forgot to say. Your valves are probably all bent up. Which is definatly not a good thing.
Are those hardened pushrods in that picture. And what springs are you using?
Oh and I forgot to say. Your valves are probably all bent up. Which is definatly not a good thing.
Are those hardened pushrods in that picture. And what springs are you using?