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Old 04-30-2013, 08:23 AM
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You use a priming tool to fill the lifters and prime oil to the bearings so it wont have a dry start and destroy bearings and cam, if you prime it first you can adjust rockers with valves closed until contact with rocker + 1/4-1/2 turn Chevrolet recommends 1 full turn with GM lifters and cam,but there cam is rated a 6 and after market is rated at ,50 so if you use gm recommendation on aftermarket can vales will be to tight it will cause low vacumn or no start .But if lifters are DRY NOT pumped up it takes1-1/4 rounds to bottom a lifter from first point of contact so if you bottom out lifter then back it up 3/4 round you are at 1*2 round down THEN you use a priming tool to fill lifters until oil comes out all rockers ,while priming turn engine 90 degrees to alow oil to all passages this is the most accurate method since there is no guessing or you can use a dial indicator or your method which ever you choose ,I would use the one that you like best ,I was just giving you an option ,but on hundreds of racing engines and mant street engines i have never had but one flat cam,dont think it was due to miss adjusted valves.These are a couple of championship cars the #76 Modified ,#3Limited class,66 a hobby stock rebuild only,77 crashed before season end.
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Last edited by 496CHEVY3100; 04-30-2013 at 08:28 AM.
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