924Board.org

[Nzl924]

Hi,
Trying to fit a new cambelt to my 924 (engine is out and belt was off when I got the enginet) and want to confirm the cam and crank are correctly positioned at TDC. If I line the crank to the mark on the pulley, what is the best way to determine if the cam is at TDC?

Thanks

[copeina]

There is a similar mark on the cam as well. When both are on their marks, things are where they should be.

Hope that helps,
/K
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1978 924 NA Project

[Fifty50Plus]

Note that the mark on the cam gear is on the back (windshield) side of it.
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1979 924 NA race car H-Prod SCCA
1982 924 NA race car - Sold
1981 924 Turbo sold
1982 924 Turbo sold
1972 911 E race car - traded for Cayenne Diesel
1975 914 1.8 Building for H-Prod SCCA

[fiskolja]

Is it possible for the mark on the cam gear to be out of sync, as in the gear having rotated independently of the camshaft?
Is there any way to verify that the gear is in sync with the shaft?
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924 NA 1977

[scm924s]

cam pulley is on locating key, can't be misaligned. You need to get No1 cylinder at top dead centre on compression stroke and TDC on the flywheel

Follow the setting up on here:-

https://members.tripod.com/darrin_smith/porsche/924cam.html
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1984 n/a Ruby Red Metallic
1988 924S Guards red- sold
1986 924S Guards Red - sold
1984 n/a Black - sold
1980 n/a Le Mans#1 - sold
1980 n/a Le Mans#2- sold
1977 Martini - sold

[fiskolja]

Ah thanks!
I decided, for some reason, to adjust the camgear itself for it to line up after waterpump replacement and it felt like it slipped from the shaft. But I haven't had problems since so that explains why
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924 NA 1977