lifter noise
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Joined: Mar 2011
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didn't do a preload just installed everything new and went to 26fp i believe and thanks for getting back so soon,dont now if i will be able to sleep tonight,also to give you heads up new injecktors 60# and new exhaughst,and d1 procharger,
Tech Contributor
Joined: May 2008
Posts: 2,843
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From: Howell Michigan
St. Jude Donor '09-'10-'11
Well you now know where you need to look first.
Thread Starter
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Joined: Mar 2011
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not an exhaust leak for sure its all brand new,and the pushrods are not adjustable car has car ran for only 2min and the moror has not ran in 8 months do you think the lifters need to pump up..
Le Mans Master
Joined: Jun 2008
Posts: 5,284
Likes: 235
From: Rockledge FL
What cam? 7.4 from what I have read here is the #1 size pushrod for aftermarket cams. You say you only ran it for 2 mins? I would think that it would take longer to pump up the cam. Did you tighten the rockers with the lifters on the base of the cam?
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Le Mans Master
Joined: Nov 2009
Posts: 6,119
Likes: 156
From: Huntington tx
Believe it or not, I had a spark plug that wasn't tight enough and it would sounded exactly like a failed lifter. I just had the car in the shop to R&R the plugs a couple of weeks before. But when I heard the ticking I decided to add a cam and other stuff. That's when I found the loose spark plug and laughed at myself for freaking out and buying all the new upgrades.
Race Director
Joined: Mar 2006
Posts: 15,449
Likes: 1,716
From: Everywhere and Nowhere at all
I just did H/C/I install and threw in the LS7 lifters for "good measure"... Most guys upgrade all of that stuff when doing those mods..to me... just seems like good ins.
GL
GL
Tech Contributor
Joined: Sep 2005
Posts: 1,731
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From: New Market AL
What size cam - or more importantly what lobe design did you install? An aggressive ramp rate is going to result in increased valvetrain noise. But the fact you didn't measure for proper pushrod length or check your rocker arm contact pattern leaves you wide open to not knowing if your geometry is correct. Do some searching on Vettenuts' posts regarding valvetrain geometry. He has already done the work for us to know how to properly measure and setup a valvetrain.
