924Board.org

mrgtturbo · Joined: 06 Jan 2003 Posts: 526 Location: Skowhegan, ME

Then I'm very confussed.
If the Z1 mark is the mark that should line up with the cam mark, but instead that funky tooth comes close, but that's the wrong side of the fly wheel... wouldn't that mean backwards?

Cam mark, distib. on 1st, funky tooth up.
I believe someone here said that the cam goes around 2 times for every one rotation of the fly wheel, however if this too would land the distrib firing on 1st, how whould one ever know if they got it right the first time? This would give you two chances to line everything up, one being right, one being wrong.

Hope this makes sense... I don't want to look too stupid.
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81' 931

924 turbo · Posted: Mon Jan 05, 2004 1:25 am Post subject:

Well, color me amazed that the car even starts with the flywheel on backwards.

If your cam dot and Z1 mark don't coincide, you're going to have to take the flywheel off if you want your car to run right.

As far as the distributor goes, you simply put the car at TDC with the cam dot lined up with the pointer and install the distrubutor to fire at cylinder 1. There is no guessing involved.

Sorry that you're going to have to re-install your flywheel.

And not to pick on you, but this should be a lesson to everyone who is doing a major service on their car. Read the manuals and follow every step, including marking everything to be re-installed for alignment!
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Jon Furst

Smoothie · Posted: Mon Jan 05, 2004 2:56 am Post subject:

Ok, now you're trying to confuse me, but you're not getting away with it this time. By backwards, you really mean turned 180 degrees from where it should be. "Backwards" suggests the engine side of the flywheel is toward the back - real sure that's not happening.

Mr. GtTurbo - did you get the "Z1" mark lined up in the window then look to see if the crank pulley mark (notch) at front lines up with its' pointer? That's an easy sure way to tell if the flywheel is on right.

Yeah - pretty sure it wouldn't even run with the flywheel off by 180 - that'd give you spark at the end of the exhaust stroke instead of at the end of the compression stroke, right?
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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

Smoothie · Posted: Mon Jan 05, 2004 3:01 am Post subject:

One thing that does still have me confused is this:
You say the sintered metal insert (odd tooth) is about 180 degrees away from the "Z1" mark... I'd think that with the "Z1" mark lined up in the window, the odd tooth should be just a few degrees away, positioned at the crank sensor.
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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

Smoothie · Posted: Mon Jan 05, 2004 3:08 am Post subject:

mrgtturbo · Joined: 06 Jan 2003 Posts: 526 Location: Skowhegan, ME

Backwards= resurfaced side of the fly wheel towards the engine.
Guess I pu it in backwards then... damn.
Just kidding

Yeah I was talking about the 180 degree thing, (1/2 turn).
If the sensor tooth is that far away... I am that far off.
I'd really like to go out and check today for that z1 mark.
I may just find out... I really want this issue figured out.
Too bad I'll be sliding under in the slush... yuck.
I suppose if I did so my car would know how much I care and maybe be nice to me.

OK... 2 turns of the crank= 1 of the cam. Meaning only one correct point. Just out of curiosity, and understanding motors better... this means 2 rotations of the distrib. right?
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81' 931

Smoothie · Posted: Mon Jan 05, 2004 3:29 am Post subject:

Smoothie · Posted: Mon Jan 05, 2004 3:36 am Post subject:

mrgtturbo · Joined: 06 Jan 2003 Posts: 526 Location: Skowhegan, ME

Hey that's a pretty good idea.
It would go with the kitchen quite nicely, since I've also got a complete engine on a stand in there too.

It's not as big of a deal as it sounds. It's a completely rebuilt 1952 750cc Crosley engine with all Braje racing parts. The motor is so clean you could eat off it, and it's not very big. The block and head make up the approximate size of a briefcase with a few things bolted on to it. It's kind of a show piece really.

She's pretty good to me about this kind of thing.
Never the less, I do hear the occational comment.
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81' 931

mrgtturbo · Joined: 06 Jan 2003 Posts: 526 Location: Skowhegan, ME

mrgtturbo · Joined: 06 Jan 2003 Posts: 526 Location: Skowhegan, ME

Smoothie · Posted: Mon Jan 05, 2004 3:45 am Post subject:

Ok. If the ice is melted enough and the car is level with some front-back space, put it in 4th or 5th gear - then you can look through the window while pushing the car to make the flywheel turn.
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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

Smoothie · Posted: Mon Jan 05, 2004 3:55 am Post subject:

mrgtturbo · Joined: 06 Jan 2003 Posts: 526 Location: Skowhegan, ME

Unfortionatly I really think I'll end up having to crawl under it. Our parking area kind of sucks. It's all packed dirt. So in the winter it pools up, and ices over. It also quite shaded so the ice hardly ever completely melts. So I'm pretty much looking at slush covered ice.
It was a good idea though.
I'll probably crawl under it just the same today. I really do want to figure this out.
I mean just to know for a fact what needs to be done would really be a step in the right direction, and take alot of worry off my mind.
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81' 931

Smoothie · Posted: Mon Jan 05, 2004 4:02 am Post subject:

Here's your typical run of the mill v8 camshaft. You can see the distributor (and oil pump) drive gear near the left end of it -
http://store.summitracing.com/partdetail.asp?part=CCA%2D07%2D305%2D8&view=257#largerimage
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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