Need help, clicking noise after flywheel, heads, cam install!
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Need help, clicking noise after flywheel, heads, cam install!
I have a 2004 CTS-V with an LS6 that I am installing heads, cam, and lightened flywheel on. This is my first install for all of these parts and I've run into something that is making my nervous.
I installed the flywheel, heads, rockers, etc today and after I finished I ran through a few stroke cycles by turning the crank to make sure everything seemed good (looking for valves hitting pistons) and I'm hearing an audible clicking or knocking sound exactly every 180 degree's or half turn of the crank. I don't believe the valves are hitting the piston because I can still turn the crank just as easy, but not sure if that matters.
Any thoughts on this? Is this sound normal? Please help, super paranoid about turning the enigine on now!
I installed the flywheel, heads, rockers, etc today and after I finished I ran through a few stroke cycles by turning the crank to make sure everything seemed good (looking for valves hitting pistons) and I'm hearing an audible clicking or knocking sound exactly every 180 degree's or half turn of the crank. I don't believe the valves are hitting the piston because I can still turn the crank just as easy, but not sure if that matters.
Any thoughts on this? Is this sound normal? Please help, super paranoid about turning the enigine on now!
Last edited by etcts-v; 05-29-2012 at 03:57 AM.
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I have 7.400 pushrods, stock rockers, stage 2.5 Precision Race heads with Dual Valve Springs and a CompCam/Texas Speed TorquerV3 Camshaft 231/234 .643/598
#3
Hydraulic roller pushrod to rocker lash? Did you zero the lash on the rockers and then give 1/2 a turn? Miss one possibly?
are all of the valves moving as they should?
are all of the valves moving as they should?
Last edited by SS10Tech; 05-29-2012 at 03:27 AM.
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Sounds like I may need to redo the install of these, just googled rod lash and found a write up from Comp Cam, I try that and see if it helps. One queston, so I zero the lash and then turn the rocker bolt one half turn correct? Do I just ignore the torque specs for the rockers?
The valves seem to be moving as they should, but I will try again tonight. Thank you for your assistance!!
Last edited by etcts-v; 05-29-2012 at 07:23 PM.
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I believe I figured it out, similar sound to the one in this thread:
https://ls1tech.com/forums/generatio...over-hand.html
Must be the springs on the clutch plate! Thank you for your help
https://ls1tech.com/forums/generatio...over-hand.html
Must be the springs on the clutch plate! Thank you for your help
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Somebody just told me the same thing on the cadillac forums, I was super confused there for a minute! haha