924Board.org

Johntom · Joined: 30 Aug 2011 Posts: 18 Location: South Yorkshire

Hi
Just in the process of replacing the cam belt on my 1981 turbo. When i removed the cover the crank mark was 2 teeth off the oil pump mark, with the cam mark aligned ? Does the crank pulley (viewed from above/front) rotate clockwise or anti clockwise?

fiat22turbo · Joined: 18 Jan 2006 Posts: 4040 Location: Portland, OR

Clockwise
_________________
Stefan
1979 924 Carrera GTS (clone-ish)
1988 944 Turbo S (Silver Rose)

Rasta Monsta · Joined: 12 Jul 2006 Posts: 11733 Location: PacNW

IIRC, crank pulley always pulls the "long" run of a timing belt (not the run with the tensioner).
_________________
Toofah King Bad

WeiBe (1987 924S 2.5t) - 931 S3

9xx · Joined: 18 Jun 2006 Posts: 627 Location: Jarvenpaa, Finland

Sure you spotted the right cam mark? The right mark should be found on the drivers side of the cam wheel, not from the front bumber side. Just a thought because there are other marks on cam wheel too.
_________________
Mikko

All gone: 931 '82 Alpine White, original option "220" G31 with LSD + 3 x 944

Johntom · Joined: 30 Aug 2011 Posts: 18 Location: South Yorkshire

Johntom · Joined: 30 Aug 2011 Posts: 18 Location: South Yorkshire

gegge · Joined: 27 Jul 2007 Posts: 1124 Location: Sweden

Clockwise looking at it. Counterclockwise from the driverseat, more correct way to describe it. Right is right and so on.
_________________
Carl Fredrik Torkildsen

924 turbo -81 Carrera GT RESTOMOD
924 turbo -80 Dolomite De Luxe
924 -85 DP kit, BBS RS, M030 and tuned engine
924s -86 Black on black turbo with Fuchs

ideola · Joined: 01 Oct 2004 Posts: 15550 Location: Spring Lake MI

And to clarify the above regarding the timing mark on the cam sprocket, it is a common mistake of previous owners to put the cam sprocket on backward. The sprocket has timing mark "dimples" on both sides of it. What you should notice, however, is that one side of the sprocket is "deeper" than the other, and has the VW/Audi logo on it, along with some other lettering. This side of the sprocket should face toward the BACK of the car, not the front, and it is the timing mark that is on the same side as the lettering that should be used to line up with the pointer on the cam cover.
_________________
erstwhile owner of just about every 924 variant ever made

Johntom · Joined: 30 Aug 2011 Posts: 18 Location: South Yorkshire

Hi
I am sure ive got the right cam pulley mark, it's the crank pulley thats not clear. There is a faint 'notch' on the outside edge (ie top) of the crank pulley with a white paint mark to highlight it, is this the mark that should line up with the raised pointer on the oil pump housing ? I have a photo but don't know how to upload it.

ideola · Joined: 01 Oct 2004 Posts: 15550 Location: Spring Lake MI

Yes, the notch can be very hard to see / feel, but it sounds like you've identified it correctly.
_________________
erstwhile owner of just about every 924 variant ever made

Rasta Monsta · Joined: 12 Jul 2006 Posts: 11733 Location: PacNW

Crank pulley notch is worthless, use the flywheel mark.
_________________
Toofah King Bad

WeiBe (1987 924S 2.5t) - 931 S3

Johntom · Joined: 30 Aug 2011 Posts: 18 Location: South Yorkshire

Hi
I have located the timing window on the flywheel but what do the marks look like?

Smoothie · Posted: Sun Sep 25, 2011 12:18 am Post subject:

cam wheel -

flywheel (first line-up the cranks' front pulley-pointer mark to get you close, then look at the flywheel window) -
For '81-up 931, "Z1" indicates TDC -

crank pulley-pointer -

_________________
"..it's made in Germany. You know the Germans always make good stuff."

'82 924T, US version, dark green metallic, 5 speed Audi 016G gearbox