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[Warped]

What really needs to be replaced when rebuilding this unit? I know the Haynes manuel says to replace the gasket and the flat o-rings?

However, my O-rine and gasket looks OK? so do I really need to replace them?

If I do, where can I get the gasket? so far three shops that I've called have no idea where to get one? Mine looks OK? It doesn't have any rips or tears? It is just dirty and perhaps a little worn??

As to the O-ring, does it have to be flat, or can I get a rounded o-ring?

Thanks agian :smile:

[ This Message was edited by: Warped on 2002-05-15 13:50 ]

[Benski]

Warped,

I've heard these are very difficult to rebuild. A mate on the board or maybe the rennlist mailing list tried to rebuild his entire fuel distributor and air plate and failed miserable. If you scratch anything then you stand a chance of ruining the whole thing.

Are you sure yours doesn't work? This is certainly one of those "if it ain't broke" kind of things. I understand that you're excited to rebuild everything, but wait until you know it's defective =)

[Warped]

I totally understand...I'm not crazy about it myself!

Juat the thought of stripping the Banjo bolts to the fuel distributor is enough to make me sweat, and wonder What the HELL am I doing!!!!

However, I played around with my air sensor unit, and the lever that comes up within, seemed to be sticking half way.

Right now, I've followed the book, upon disconnecting the unit. I'm more then willing to put it back together without taking it apart further...however, if I do that, what should I focus on, by making sure that my lever moves within its full radius within the sensor itself?

Geddy T - Can you help me explain what was happening when you came on out and gave this a look over?

Thanks

Warped

[ This Message was edited by: Warped on 2002-05-15 13:55 ]

[Geddy T]

First off, any time you need help, just give me a holler at (360)319-6960 or stevederk@hotmail.com. I may be able to run out there again some time.

Your air flow sensor should not need to be rebuilt. And, yes, it's a PITA to do (BTDT) and will probably just result in an off-center plate. Only worry about the air sensor if you've already unstuck the plunger in the fuel distributor. When I was looking at it, I'm sure that that's what the problem was. You don't need to even touch the air flow sensor to do this. Just unscrew all of the banjo bolts from the fuel distributor and then 3 flathead screws and it's off. Like I said, that plunger in there will get varnished up and stick. This will block the flapper plate from coming up. Follow the procedure I told you to get it unstuck and then put it back on. That's all you should need to do. Under no circumstances should you open up that fuel distributer to rebuild it. Get the plunger unstuck and then put it back on. If it needs anything more than that, you may be screwed. There is a procedure in the Haynes for rebuilding a pressure sensor inside, which is only a small fix and even still, a dangerous one. If you already have gotten the plunger unstuck and the air sensor plate still won't come up all the way, give me a call.

[Geddy T]

And remember, take the problems in order. Until you get fuel to the fuel distributor, it's a moot point.

[Geddy T]

Oh yeah, one more thing.
If the O-ring that you're referring to is the one between the fuel distributor and the air flow sensor, there should be a standard O-ring at the hardware store that should work just fine.

[TroyDest]

Lon, Geddy is absolutely right on every point. I can tell he's been inside a fuel distributor like I have. PITA doesn't even begin to describe trying to compress 6 o-rings mounted tangentially around a shaft and then trying to squeeze it all down into a hole. I did it an a 5-cyl audi.

I just got a 931 with a stuck plunger and got it unstuck by flipping the fuel distributor upside down and letting a couple drops of acetone soak in for a while. Varnish had built up on it. It slips and slides real nice now. Good luck, Troy.