knocking after cam install..
knocking after cam install.. camshaft-238/242 .581 .581 113lsa comp cam
livernois 7.400 pushrods
livernois valve seals
patriot gold dual valve springs/retainers
i just installed the camshaft today everything went smooth camshaft is dead on i marked the chain in 2 spots, i have done over 100 hemi swaps so i was sure to get the timing dead on..
either way its a loud knock and i can hear it on what i think both sides like a lifter..
5 monthes ago i was driving the car and it just started doing this same sound out of the blue.. then it went away after about 5 minutes of driving..
also when i pull the fuse for the fuel pump and crank it over with no fuel and just the starter it makes no noise..
any ideas?
i have a vid coming
livernois 7.400 pushrods
livernois valve seals
patriot gold dual valve springs/retainers
i just installed the camshaft today everything went smooth camshaft is dead on i marked the chain in 2 spots, i have done over 100 hemi swaps so i was sure to get the timing dead on..
either way its a loud knock and i can hear it on what i think both sides like a lifter..
5 monthes ago i was driving the car and it just started doing this same sound out of the blue.. then it went away after about 5 minutes of driving..
also when i pull the fuse for the fuel pump and crank it over with no fuel and just the starter it makes no noise..
any ideas?
i have a vid coming
Car-2005 gto
camshaft-238/242 .581 .581 113lsa comp cam
livernois 7.400 pushrods
livernois valve seals
patriot gold dual valve springs/retainers i didnt use any shims
i just installed the camshaft today everything went smooth camshaft is dead on i marked the chain in 2 spots, i have done over 100 hemi swaps so i was sure to get the timing dead on..
either way its a loud knock and i can hear it on what i think both sides like a lifter..
5 monthes ago i was driving the car and it just started doing this same sound out of the blue.. then it went away after about 5 minutes of driving..
also when i pull the fuse for the fuel pump and crank it over with no fuel and just the starter it makes no noise..
any ideas?
i have a vid coming
camshaft-238/242 .581 .581 113lsa comp cam
livernois 7.400 pushrods
livernois valve seals
patriot gold dual valve springs/retainers i didnt use any shims
i just installed the camshaft today everything went smooth camshaft is dead on i marked the chain in 2 spots, i have done over 100 hemi swaps so i was sure to get the timing dead on..
either way its a loud knock and i can hear it on what i think both sides like a lifter..
5 monthes ago i was driving the car and it just started doing this same sound out of the blue.. then it went away after about 5 minutes of driving..
also when i pull the fuse for the fuel pump and crank it over with no fuel and just the starter it makes no noise..
any ideas?
i have a vid coming
also forgot to add that i took the drivers side valve cover off and had someone watch the lifters.. they are all moving..
did you check the pass side? Dont know if I missed that. Just to make sure a spring didnt pop. Also why not some HP behives with that cam. Maybe spin the crank by hand could help determine where its at. Hope you find it.
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thanks for the tips guys.. i never unplugged the injectors..
i did install brand new seals from livernois they were just a press on type seal went on pretty hard..
also im thinking now that maybe the pushrods are to long..
cam is ground on the xer lobes..
yes stock rocker arms also..
i did install brand new seals from livernois they were just a press on type seal went on pretty hard..
also im thinking now that maybe the pushrods are to long..
cam is ground on the xer lobes..
yes stock rocker arms also..
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Staging Lane
Joined: Sep 2006
Posts: 60
Likes: 0
From: Northern KY
I know this doesnt help you. But your not alone!
Just put a TS cam and dual springs in my camaro.
I had a BAD noise 30 seconds after I started it. Like a squeeky knock. I took the valve covers off. Found nothing wrong. No issue turning over by hand. Put it back together, started it. Noise came right back.
While I was listening to the engine it seemed to come from center of the block (Lifter?) well after about 30 sec it went away?
let it idle to full hot twice and its just as quiet as can be...
Just put a TS cam and dual springs in my camaro.
I had a BAD noise 30 seconds after I started it. Like a squeeky knock. I took the valve covers off. Found nothing wrong. No issue turning over by hand. Put it back together, started it. Noise came right back.
While I was listening to the engine it seemed to come from center of the block (Lifter?) well after about 30 sec it went away?
let it idle to full hot twice and its just as quiet as can be...
Slow knock will be lower end and a fast knock will be top end. Im willing to bet you have a lifter not pumping up. What are the specs on your heads? Are they milled? Did you check your PTV?
Yeah I'm aware of that, just sayin a Vid Clip might help a little better than him tryin to describe it.
Last edited by InsaneDomestics; Feb 12, 2010 at 05:54 AM.
