924Board.org

BillA · Joined: 27 Dec 2002 Posts: 168 Location: Syracuse, NY

Does anyone know if a 944 coolant expansion tank will fit in the 931. I have one on hand and doesn't appear that it will fit due to the headlight motor.
Thanks.

Bill
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BillA

1981 931

Rasta Monsta · Joined: 12 Jul 2006 Posts: 11723 Location: PacNW

Many have done this. Did you try searching?
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Toofah King Bad

WeiBe (1987 924S 2.5t) - 931 S3

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

Are you sure it's mounted far enough back?

It should be mounted under the quarter panel next to the strut tower.

I've not heard of any issues with the headlight motor, just the ignition amplifier on the box.
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Stefan
1979 924 Carrera GTS (clone-ish)
1988 944 Turbo S (Silver Rose)

Carrera RSR · Joined: 08 Jan 2010 Posts: 2309 Location: Somerset, UK

No issues with headlight or ignition box. Fits like a glove
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1980 931 - forged pistons, Piper cam, K27/26 3257 6.10 hybrid turbo, 951 FMIC, custom intake, Mittelmotor dizzy & cam pulley, H&S exhaust, GAZ Gold, Fuch'ed, Quaife
Now www.924board.org/viewtopic.php?t=34690
Then www.924board.org/viewtopic.php?t=31252

ideola · Joined: 01 Oct 2004 Posts: 15548 Location: Spring Lake MI

Mounting is a piece of cake. Requires some minor modifications to the hoses going to/from the tank.

In the Club Sport with original flip-up headlights and ignition module (no clearance issues):

In the Club Sport after fixed headlight conversion, also showing the liquid-to-air charge cooler water pump mounted to the headlight motor bracket:

Pix of my install on the 941. In this case, I retained the original expansion tank bracket, bent it a little to clear the 944 tank, and reinstalled the 931 expansion tank as a reservoir for the water-meth injection kit.

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erstwhile owner of just about every 924 variant ever made