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09-10-2009, 05:16 PM
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#1 |
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Registered User
Join Date: Jan 2006
Location: Take Off
Posts: 1,908
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Loose Rocker Arm
Pulled the valve covers off my truck's small block for the first time since I bought it and everything was very clean underneath but one rocker arm was a little bit loose and I could jiggle the push rod a little. All the others were not loose. I assume this is NOT normal as there should be zero lash correct? Should I just tighten that one rocker arm up till no more jiggling and then go 1/4 turn more?
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09-10-2009, 09:30 PM
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#2 |
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Registered User
Join Date: Aug 2009
Location: St. Paul MN.
Posts: 1,996
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Re: Loose Rocker Arm
I would check a few things before adjusting that rocker arm. 1 make sure the rocker arm stud is not pulling out of the cylinder head 2 make sure the rocker arm ball did not wear through the rocker arm. 3 check make sure the push rod is not bent. If all looks good i would adjust all the rockers according to the cam manufacturer or service manual.
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09-11-2009, 04:37 AM
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#3 |
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70 Chevrolet=Obsession
Join Date: Jun 2009
Location: nice ca
Posts: 1,067
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Re: Loose Rocker Arm
Also I would check for a collapsed tappet.
__________________
 I'm Just like my truck. Old, Ugly and Grouchy. Except my truck starts easily in the morning and doesn't smoke! IT'S NOT EASY BEING GREEN! -Kermit the frog 1970 Chevrolet C-10 Longbed Stepside : 350, Muncie M20, 3.08 GM corp. positraction Forest green exterior/light green interior(Where all my money goes) 1996 Toyota Corolla (Parts runner) |
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09-11-2009, 10:47 AM
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#4 |
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"the other guy"
Join Date: Oct 2008
Location: Olivehurst California 95961
Posts: 901
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Re: Loose Rocker Arm
cam lobe may be going away
__________________
God Said,"Building A 10 Second Import Is Like Coming Out Of The Closet, In The End Ur Still....."EXPLETIVE" 
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