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Jay Rome · Posted: Sat Mar 24, 2007 8:43 am Post subject: 931 newbie with no start question

New to water cooled Pcars, own 6 other carburated early air cooled. Story goes like this Mon/Tues morning started but only ran for 5 or 6 seconds. Restart was ok. Coming home from work Tues noticed gas behind right rear on concrete - bad fuel accumulator - replaced but now will not start. Got fuel pressure, got spark, spins over but will not start. Can smell plenty of raw gas at tailpipe. Any and all help would be appreciated. Sorry my first post is a question but I just found this board yesterday looking for answers. This car became my daily driver about 6 months ago, runs great and outhandles any of my other cars, supposedly it was put together by Brumos, its painted white with red and blue stripes, lowered put about 4,000 miles on it since i bought it. Only had 72,000 miles on it when i got it. forgot to add its an 80 931
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Jrome

Smoothie · Posted: Sat Mar 24, 2007 10:50 am Post subject:

Hey - welcome to the water. All we ask is that you keep your suit on.

I'm thinking that if it was running ok before and nothing else has changed or was touched before/after changing the accumulator you might just have some air in the fuel system. Tried holding the pedal to the floor while cranking? -That will clear air from the lines quicker if it's there.
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"..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

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

NICE, I saw that car on Collectorcartrader.com! Special Brumos/Peter Gregg edition, right?

Post some pics and more details, people around here will love that thing!
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Toofah King Bad

WeiBe (1987 924S 2.5t) - 931 S3

Jay Rome · Posted: Sun Mar 25, 2007 11:14 pm Post subject:

Must have been air in the lines or what seemed like a flooded condition - anyway we are back on the road, also discovered the previous owner installed the fuel filter backwards I'll try to post some pics, it is a nice looking car and these handle awesome.
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Jrome

Paul · Posted: Mon Mar 26, 2007 12:02 am Post subject:

The arrow on the fuel filter on a US 931 should point at the driver.
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White 87 924S "Ghost"
Silver 98 986 3.6l 320 HP "Frank N Stein"
White 01 986 "Christine"
Polar Silver 02 996TT. "Turbo"
Owned and repaired 924s since 1977
Porsche: It's not driving, it's therapy.

Paul · Posted: Mon Mar 26, 2007 12:04 am Post subject:

If it is on backwards (arrow pointing to the front of the car), do not turn it around, replace it.
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White 87 924S "Ghost"
Silver 98 986 3.6l 320 HP "Frank N Stein"
White 01 986 "Christine"
Polar Silver 02 996TT. "Turbo"
Owned and repaired 924s since 1977
Porsche: It's not driving, it's therapy.

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

Paul · Posted: Mon Mar 26, 2007 4:51 am Post subject:

One of the hardest problems I ever solved on a 931 was due the fuel filter being on backwards. The reverse pressure evidently caused it to fail internally and the cage intermittently plugged the fuel line to the motor.

It would run fine, then shut down suddenly. It would always restart and run fine until it clogged again.

If you shake a 931 filter and it rattles, throw it as far as you can....
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White 87 924S "Ghost"
Silver 98 986 3.6l 320 HP "Frank N Stein"
White 01 986 "Christine"
Polar Silver 02 996TT. "Turbo"
Owned and repaired 924s since 1977
Porsche: It's not driving, it's therapy.

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

Vince Ponz · Joined: 02 Nov 2002 Posts: 3581 Location: Florida

Same things happen with a faulty ignition switch. Cheap fix about $40
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"Never let them see you sweat"
77.5 924 modified track car
79 931 Euro stock
88 924S SE
87 911 Targa stock