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Registered
Join Date: Jan 2004
Location: Milwaukee, WI
Posts: 3,360
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I messed up my Cam Shims Now What?
So, when disassembling my engine, I did not keep my shims separate from each bank. Is there any way for me to tell which one(s) go to which cam?
Thanks for the help!
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Jeremy C. Why's he calling me meat? I'm the one driving a Porsche. (Bull Durham) ----Nothing is far away in this car!--- -2001 996 Turbo |
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03-11-2007, 11:13 AM
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Join Date: Jun 2004
Location: Rio Rancho, New Mexico
Posts: 1,325
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Search under "cam sprocket alignment" You will find the answers.
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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 |
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03-11-2007, 12:12 PM
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Join Date: Apr 2006
Location: Newcastle, WA
Posts: 966
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You have to measure the sprocket depth on each side anyway. The procedure is well described in Wayne's engine rebuild book. Forgetting how many were on each side is no big deal. The number of shims on each side might have been wrong before you removed them. Mine was wrong on the left side.
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James 1969 911E Slate Grey 1981 911SC Wine Red 1997 911C4S Ocean Blue |
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03-11-2007, 12:15 PM
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You do need to measure these - but, Bruce Anderson's Porsche 911 Performance Handbook says on page 128,
Normally three shims will be required under the left sprocket (cylinder 1-3) and four shims underneath the right sprocket (cylinders 4-6). This is a good place to start, but making the measurement is a PITA. Probably the one thing that was most difficult for me to get correct on my engine rebuild.
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Rex 1975 911s and 2012 Range Rover Sport HSE 1995 BMW R1100RS, 1948 Harley FL |
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03-11-2007, 12:37 PM
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1975 Porsche 911s
