valve lash adjustment
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Joined: Feb 2006
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From: Sunnyvale Texas
valve lash adjustment
I purchased this 73 this yr. and it has a roller cam with solid lifters and the valve lash is .016 & .018. I do not know what the cam specs. are other than manufacture. it is a chet herbert cam. my question is should i adjust them cold running or hot running. i am concerned about the oil spray if running with vlv. covers off, one side at a time. is there some type of tool that can be put on the rocker arms to keep the oil spray contained. (350 cui.)
i called the manuf. and they said that i should set them .020 to .025 cold, since i do not know the specs of the cam. I am afraid to try this not knowning the exact specs of the cam. they also said to put a dial indicator on the intake/exhaust and record lift etc. and call them back and maybe they could tell what to do on the adjustments.
help me out if possible and also thanks for any and all response on this
this is a 73/auto l48.
i called the manuf. and they said that i should set them .020 to .025 cold, since i do not know the specs of the cam. I am afraid to try this not knowning the exact specs of the cam. they also said to put a dial indicator on the intake/exhaust and record lift etc. and call them back and maybe they could tell what to do on the adjustments.
help me out if possible and also thanks for any and all response on this
this is a 73/auto l48.
Race Director
Joined: Dec 1999
Posts: 19,610
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From: Forked River NJ
You do not adjust a solid roller of flat tappet with the engine running. You do not need to worry about oiling splash. you generally set them with the engine hot but off. I set mine hot then check them cold and see how much they "shrunk". I then use this so I can set them cold. They always come out right after warming it up.
Le Mans Master
Joined: Jan 2006
Posts: 9,192
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From: Boca Raton Florida
Thats true, running adjustment is for hydraulic lifter adjustment. There is a lil clip gizmo you put on the rockers to stop the oil from squirtin all over the place, I thought ecklers had them but I can
t find a link. Anyway, solid lifters are adjusted, engine warm, Off with a feeler gauge
Just reread your post, the point to putting the dial indicator on there is to determine the lift of the cam and the lobe seperation. From that they can tell you the rest of the cam specs and what the lash should be
t find a link. Anyway, solid lifters are adjusted, engine warm, Off with a feeler gauge
Just reread your post, the point to putting the dial indicator on there is to determine the lift of the cam and the lobe seperation. From that they can tell you the rest of the cam specs and what the lash should be
Last edited by SIXFOOTER; Dec 28, 2006 at 09:00 PM.
Team Owner
Joined: Aug 2006
Posts: 24,125
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From: Columbia Missouri
A tip for containing oil, even though that's not how you do it...but for future reference.
Take an old pair of valve covers, and cut the top off like you're opening a can of beans. You want kind of a wall surrounding the rockers, with an open top. That gives you full access to the nuts of top, and the walls of the valve covers keep the oil in where it's supposed to be.
Take an old pair of valve covers, and cut the top off like you're opening a can of beans. You want kind of a wall surrounding the rockers, with an open top. That gives you full access to the nuts of top, and the walls of the valve covers keep the oil in where it's supposed to be.
