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Old 08-11-2004, 11:03 PM
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Question cam change

I am in the middle of a cam swap on teh wifes car. I am using air to hold up the valves, what PSI. should the regulator on the Air compressor be set to to hold the valves up.....I guess the more pressure the better....I guess what I am asking is what is the minimum?
Old 08-11-2004, 11:39 PM
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I just used the pressure listed in the LS1howto.com which was 60-80 psi. I used 70 when I did my cam swap and everything went fine. Good luck on the swap.
Old 08-12-2004, 12:46 AM
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just use the TDC method, its easier.
Old 08-12-2004, 02:28 AM
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Originally Posted by jrp
just use the TDC method, its easier.

and safer too.
Old 08-12-2004, 02:40 AM
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but you have that little bit that the valve will move, and thats kind of a pain in the ***. at least that has been my experience. the air pressure bleeds off pretty quick while im doing mine, so ive unfortunately let it get done to about 45 psi, but it wasnt a prob, they held. i would say 60-80 though
Old 08-12-2004, 08:33 AM
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I use 60#




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