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vexed73 · Joined: 05 Oct 2007 Posts: 187 Location: EASTERN, nc.

No didn't know that. Is it worth taking them back out and re-aligned for regular road use?
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1982 PORSCHE 931

Smoothie · Posted: Mon Mar 17, 2008 10:42 am Post subject:

No, I wouldn't take it all apart for that now.
I didn't know the oil was there for cooling when I replaced mine a long time ago (probably close to 10 years) (one side had oil, the other side didn't - and I assumed the oil in the one side came from a leak in that strut insert). Those non-oil-cooled replacements are still good. The car is used daily-year-round on the street, and no racing.
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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

vexed73 · Joined: 05 Oct 2007 Posts: 187 Location: EASTERN, nc.

Any one know what sizes and about the amount of vacuum lines I need to redo all of my lines? I live about 15 miles from an auto parts store and I am terrible of figuring out what size they are until I buy the wrong size and have get the next one down or up. Doesnt have to be a perfect list just something to get me most of the way there so I wont spend more time going back and forth than working on it.
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1982 PORSCHE 931

Paul · Posted: Mon Mar 17, 2008 11:14 am Post subject:

Size matters, but the material is just as important, buy the stock ones if possible.
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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

Yep, buy your elbows from Porsche (check the PET), and your vaccuum lines are a standard size. . .get the german-style cloth coated ones, and the correct crimp clamps.
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Toofah King Bad

WeiBe (1987 924S 2.5t) - 931 S3

ideola · Joined: 01 Oct 2004 Posts: 15550 Location: Spring Lake MI

Alternatively, here's what I did on one of my 1980 931:

Get the seven 90° elbows from Racer Parts Wholesale, as 924RACR discusses here. You'll need to double check on the exact sizes.

Get silicone replacement line from Hose Techniques:
10' or 3-4 meters of 3.5mm OD
6' or 2 meters of 12.7mm OD
3' or 1 meter of 19mm OD

This will give you enough to do everything except for the vac lines on the charcoal cannisters

You'll probably need another 3' / 1m or so for that. Ask me how I know.

I also used silicone replacements on my NA and it has done wonders to eliminate vac leaks. I'm now pulling a strong 18 Hg in vacuum on that car at idle. Very pleased with the results and the look.
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erstwhile owner of just about every 924 variant ever made

vexed73 · Joined: 05 Oct 2007 Posts: 187 Location: EASTERN, nc.

Get silicone replacement line from Hose Techniques:
10' or 3-4 meters of 3.5mm OD
6' or 2 meters of 12.7mm OD
3' or 1 meter of 19mm OD

Did you mean OD or ID on those?
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1982 PORSCHE 931

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

Hey, silly-corn elbows, that sounds like a fine idea.
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Toofah King Bad

WeiBe (1987 924S 2.5t) - 931 S3

ideola · Joined: 01 Oct 2004 Posts: 15550 Location: Spring Lake MI

Paul · Posted: Tue Mar 18, 2008 8:17 am Post subject:

How well do silicone hoses hold up to oil and gas?
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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.

ideola · Joined: 01 Oct 2004 Posts: 15550 Location: Spring Lake MI

From what I understand, pretty well...after all, Silicone wouldn't be the material of choice for charge tube connections if it were susceptible to oil and gas...
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erstwhile owner of just about every 924 variant ever made

Paul · Posted: Tue Mar 18, 2008 8:46 am Post subject:

From: HERE

Though it can be used anywhere regular rubber is used, silicone rubber is most often found in coolant systems as radiator and heater hose, as inlet/outlet tubing connectors and intercooler hose for turbo/supercharger systems, and as emissions system hose. Standard silicone hose is not recommended for carrying oil or fuel; fluorosilicone rubber-lined hose is formulated to resist these fluids, and is offered by Samco Sport in universal straight lengths. Fluorosilicone-lined hose is ideal for oil systems, fuel line, and transmission or engine oil cooler line.
_________________
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.

ideola · Joined: 01 Oct 2004 Posts: 15550 Location: Spring Lake MI

Umm, ok, I'm confused. i thought we were talking about vacuum lines??? If it's good enough for charge air why wouldn't it be good enough for vacuum lines???
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erstwhile owner of just about every 924 variant ever made

Paul · Posted: Wed Mar 19, 2008 12:15 pm Post subject:

The elbows used on the turbo and cylinder head are usually coated inside with oil.
_________________
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