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> valve adjustment help?, different with split duration cam?
machina
post Apr 16 2005, 12:19 PM
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gotta adjust the valves before next race, never done a TIV before, just a 911

so is the procedure any different for a split duration cam?
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ChrisFoley
post Apr 17 2005, 02:18 AM
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Since you have CrMo pushrods, adjust the valves to zero clearance, all the way around. The pushrods should be able to spin pretty easily if you can get a finger on them. I can just squeeze my pinky past the pushrod retainer wire to do the spin test, and it is tough to tell if the rod is spinning or your finger is slipping because of oil. There should be no discernible play in the rocker arms though.
Starting with #1 TDC adjust both valves, rotate the crankshaft 180 degrees backwards, adjust cyl #2, rotate 180 deg, adjust cyl#3, rotate 180, adjust #4. I put the car in gear and chock one wheel so I can rotate the engine with the other wheel. Working alone it means I have to get up and down a few times, no big deal.
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Posts in this topic
synthesisdv   valve adjustment help?   Apr 16 2005, 12:19 PM
Bleyseng   What pushrods are you using?   Apr 16 2005, 01:21 PM
Aaron Cox   when one valve is open all the way, the one on the...   Apr 16 2005, 01:30 PM
Cap'n Krusty   Do 'em by my method, and you'll NEVER have...   Apr 16 2005, 03:35 PM
synthesisdv   ...   Apr 16 2005, 07:20 PM
Racer Chris   Since you have CrMo pushrods, adjust the valves to...   Apr 17 2005, 02:18 AM
synthesisdv   ever adjust from the top? My header primaries are ...   Apr 17 2005, 10:11 AM
Racer Chris  

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