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2.7RACER 2.7RACER is offline
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Join Date: Jun 2004
Location: Rio Rancho, New Mexico
Posts: 1,326
Using a .004" feeler gauge for the initial setting and then checking with a .003" and a .005" will tell you how close you are. Another way I use is to check between the cam and the rocker. If a .003" slides in the adjustment is loose. If you can't slide a .002" between the cam and rocker the adjustment is too tight. The rocker ratio dictates that .004" at the elephant foot equals about .0028" at the cam/rocker. The problem is once you have the .004" at the elephant foot it is very difficult if not impossible to re-insert the .004" feeler. The nice thing about checking between the cam and rocker is the feeler is somewhat guided into place. A dial indicator is great, providing you have the engine out and you have the dial locked down tight (no movement). Of course the dial indicator needs resolution so that .004" is easy to see. The indicator I use is one complete turn is .025". The .100" dials can be tough to read. Good Luck!
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DOUG
'76 911S 2.7, webers, solex cams, JE pistons, '74 exhaust, 23 & 28 torsion bars, 930 calipers & rotors, Hoosiers on 8's & 9's.
'85 911 Carrera, stock, just painted, Orient Red
Old 03-28-2005, 11:46 PM
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