924Board.org

mrpaul152

Man I really screwed up. I left offshore for a few months and left the keys to my 81 924T at home for the kids to find. Never the less I returned to find the Timing belt slipped. I replaced and still was not right. Few choice words were said and stepson let me know that he had some freind's over to help try to fix problem. They thought screwing with the fuel flow, Idle Air screw, and moving the distributor would keep me from knowing they were driving my baby. Can't hide a slipped belt though. Can anyone help me on where to start. I have the car running again but timing is off and I know the fuel mix is way out of wack too. Before I left you could turn key, let fuel pressure up and fire up, car would purr like a kitten. You did not have to touch pedal, not anymore. Repair manual does not go into enough depth for sompthing like this.
How many turns out should I start with Idle Air? Anyone know how to set timing?
Any help is appreciated.
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1981 924 turbo

datatrain · Posted: Tue Sep 09, 2008 8:12 am Post subject: A starting place

This will get you a start on the A:F setting.

http://www.924board.org/viewtopic.php?t=26088

Make sure the marks on the cam line up with the pointer and the crank pulley with the mark on the oil pump located under the cam belt guard.

For the distributor you'll need a timing light.

Start the idle adjustment fully in then out 2 1/2 turns to begin with. It's a starting point.

It's what I've learned here from the guys that know.

DAve
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'78 924 NA with Collector plate
33 year old car, with me for 21 yrs
Mint '92 318i BMW
Near mint '98 Buick LeSabre
VE7HFR

Smoothie · Posted: Tue Sep 09, 2008 8:40 am Post subject:

It's all been gone over many times in the past, so have a look via search.
-But don't bother with the timing light except for setting the idle speed (S2 931 ignition timing isn't adjustable).
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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

sgloki · Joined: 23 Aug 2008 Posts: 53 Location: Bellingham, WA

all the timing marks can be found in the haynes manual. one on the pulley, one on the back of the cam with the pointer, and one under the distrib. cap.

For the idle screw, just follow the directions in the same manual or your under hood sticker for which vacc lines to disconnect and or plug if needed, then run the car and adjust until your idle is right.

Then you need to use a o2 sensor to properly adjust fuel mixture.

So, step one: whip a kid's ass, Step two, learn to do the timing, step three, make the kid turn the wrench while you watch.......

Rinse wash and repeat...while the kid gets ready to wash wax and buff the car.
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All work and no speeding makes jack a dull boy.

mrpaul152 · Posted: Tue Sep 09, 2008 9:00 am Post subject:

One problem with using the manual to find marks on dist. is it is extremley bloody from beating kids ass with it. Once he heals I need the manual to do it all over again.
Can you walk me thru the dist timing. I have replaced belt and those marks are in right order. I did not know about the one in the distributor. What lines do I need to plug and what degree is timing. I am assuming it is done thru view hole in back of block.
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1981 924 turbo

Smoothie · Posted: Tue Sep 09, 2008 10:42 am Post subject:

Smoothie · Posted: Tue Sep 09, 2008 10:49 am Post subject:

Here's the throttle-stop, and idle speed screw setting procedure specifically for the 931 S2 -
http://www.924board.org/viewtopic.php?t=18355

With any luck, they couldn't even find the A:F mix adjuster to mess with that.

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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

Paul · Posted: Tue Sep 09, 2008 11:01 am Post subject:

Do a compression test before doing anything else to make sure no valves were damaged.
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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.

mrpaul152 · Posted: Tue Sep 09, 2008 12:57 pm Post subject:

Smoothie,
All 3 (A\F mix screw on fuel dist, Dist, and the screw just below the idle screw you mentioned) were messed with. I cannot wait until he heals so I can repeat the beating he got. Just kidding but I can dream. By the way my Corvette was wrecked by him as well while I was gone. Guess if you are going to screw up you might as well go all the way.

On another note how do you put pictures on here?
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1981 924 turbo