924Board.org

924martinirossi · Posted: Thu Jul 10, 2003 10:12 am Post subject: Fuel and Clutch

I've been in Calf doing military things and when I returned and drove the 931 again my clutch pedal went straight to the floor on the freeway.

Made it home OK and popped the hood. The brake cylinder was almost empty. I filled it up and watched as the fluid disapeared again, looking under the car near the starter, was a steady stream of fluid pouring out.

I ordered the slave cylinder rebuild kit, Beck Arnley, and it was the exact same thing that Porsche used down to the part numbers on the seals. Cost: $19.95.

My fuel accumulator has been leaking and I have a few of them here from different cars. Well the AUDI and VW units will not fit due to the fuel inlet nipple being bigger. M16X1.5mm. I found an adapter that bushes this fitting down to the proper size and is made for the metric fuel line fittings.
It will take one week to get here. I couldnt wait so I went to the Pull-A-Part in Everett, WA (79 924 in yard the car still has the snail shell tranny in it, engine and torgue tube) and wanted to remove the fuel accumulator from it but is was already on the stack of cars to be crushed. Got the forklift operator to lift it off and I scored the accumulator (which by the way looks brand new and not leaking) for $2.50.

When I went to remove the old one the outlet fitting to the engine simply screwed off by hand. The drifting idle (going up and down about 100 - 200 rpm's) is now gone.

Michael

Phogphire1 · Joined: 05 Apr 2003 Posts: 293 Location: Portland, OR

Welcome Back Buddy
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coconutcowboy · Joined: 27 May 2003 Posts: 191 Location: Milner, Ga

can you tell me where to get that fitting and adapters. do the have metric to AN adapters so I can make my own fuel lines easily. recently found the metric banjo fittings for where I need them.

Thanks,

Sean Ross
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924martinirossi · Posted: Sun Jul 13, 2003 11:36 am Post subject:

The fittings can be found at:

Fittings Inc.
5979 4th Ave South
Seattle, WA 98108
(206) 767-4670

It is best that you go to such a place with hose in hand (no pun intended) and show them what you need. The amount of catalogs to look thru is staggering.

You can also look around on the web, but, I have not turned up anything useful yet. When I receive the fitting I will post a picture and description of the part because the fuel accumulators from Audi's and VW's are plentiful in the wrecking yard and the $7.00 part will save you over $200.

Try Aeroquip on the web.

Michael

positivesale · Joined: 12 Nov 2002 Posts: 126

I put about 2000 km on my 931 in one year and the slave went. It was brand new. I opened it up after it blew, and it had all hard grunge inside it.

I change my brake fluid about once every two months now, because I'm paranoid. What I'm thinking, is that the brake lines and clutch lines must be rusting inside. The slave has a property to bond to that grunge, and it just keeps bonding grunge on to the metal it until finally the o-ring in there pops.

I am now doing rebuilds instead of buying slaves - because I just did a rebuild and it's as good as new. You need some non metallic scotch pad to remove the grunge. It works great.. it's like honing.

Master's go too.. they leak on the carpet and you can never get the carpets clean because it's always wet of dot3 fluid. When I put the new master on, it's al dry.. so the slave does seem to be more of the "break often" part.

I should have kept the grunge in a container for testing. If it is magnetic, that would be easy to trap with a magnet somewhere. Either that or a filter. I think a filter that you could easily change, would save good money on changing these slaves. I don't see how a filter or magnet could possibly hurt..you'd have to change it if it got clogged, but so what? that's better than changing the slave.
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82 931

Paul · Posted: Sun Jul 13, 2003 10:10 pm Post subject:

IMO, if your rubber brake hoses are more than 10 years old replace them. You will be surprised how much better your brakes will be.

924martinirossi · Posted: Tue Jul 15, 2003 9:35 am Post subject:

This is the part that will adapt Bosch Fuel Accumulator P/N 0.438.170.027 from VW/Audi etc. to fit our 924's. It is a Male BSPP X Female BSPP Swivel P/N 9015-04-016. It is made by Adaptall. (www.adaptall.com) and cost $3.38.

Michael[/url]

924martinirossi · Posted: Tue Jul 15, 2003 9:52 am Post subject:

Is that right way to post an image?

Michael

924 turbo · Posted: Tue Jul 15, 2003 10:04 am Post subject:

The [/img] goes after the url, and the [img] goes in front.

Edit: okay, then I'll remove mine.
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924martinirossi · Posted: Tue Jul 15, 2003 10:06 am Post subject:

Thanks. I just tried it again and it worked

Michael

positivesale · Joined: 12 Nov 2002 Posts: 126

When your accum was bad, was it leaking? Just wondering if they leak when they are bad all the time, or whether they can be bad and not leak.
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82 931

924martinirossi · Posted: Fri Jul 18, 2003 2:37 pm Post subject:

Yes, I leaked when the car was stopped. The CIS Tester really lost pressure fast upon shut down.

Michael