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geddes66 · Joined: 10 May 2003 Posts: 129 Location: Bakersfield CA

I am getting as many problems fixed on my son's car as I can while he's away at Navy boot camp. Transmission is fixed, lights now pop and drop stereo is re-installed adn the waterleak (rain) is almost gone. That sort of thing.

The car has a substantial leak at the front of the engine, it has had it since I bought it about 5 years ago for 500.00. I am reasonalbly sure it is the front seal.

How hard is it this to change this seal? Can I pull the seal without pulling more than the front pulley's (plus a little, of coarse)?
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The Porsche is now my son's, my car is cooler, slower but cooler.

Paul · Posted: Tue Oct 17, 2006 1:07 pm Post subject:

I'm thinking:

alternator belt
a/c belt
front pulley
timing belt cover
timing belt
crankshaft cam belt drive
oil pump (the seal is in the oil pump)
_________________
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.

Ozzie · Posted: Tue Oct 17, 2006 2:56 pm Post subject:

That sounds about right to me to except shouldn't have to remove the oil pump.
It is an easy enough job.
Make sure your crankcase breather is not blocked as the pressure will push the oil out the seal.
I replaced 3 seals before I found this out.
On US cars the crankcase breather hose connects to the air box. On euro spec they connect to the join in the rubber boots to the throttle body.
The large hose has an orifice in it near the motor which gets blocked.
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Porsche 924 1984 (UK import) NA
Its AUTO and its BLACK
Montego Black on black/red
Engineer of Electro/Mechanical Systems Maintenance

Chrenan · Joined: 15 Jan 2003 Posts: 3903 Location: Canada

You do not need to remove the oil pump, just the pulley. The job will be easier with a seal removing tool, and the proper circumference piece of pipe to tap in the new seal.
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1987 951 - M193 Version for Japan

-nick · Joined: 16 Nov 2002 Posts: 2699 Location: Cambridge, MA

If you go through all that, you might as well pull the pump and replace the $2 oil pump gasket too! Especially if you've got a leak from that area to begin with.
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1980 931S
15psi boost, MS-II, EDIS, 951 IC, custom intake, Ford 5.0L throttle body, Forge BOV, WB o2, G31 w/LSD, 964 wheels, 968 rear sway, Bilsteins, 200# Welt. springs. A laptop, and a partridge in a pear tree.
1991 964 C4 Cabriolet

Paul · Posted: Wed Oct 18, 2006 8:20 am Post subject:

I agree, plus the seal is much easier to remove on the bench and you do not have any chance of damaging the sealing area on the crankshaft.
_________________
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.

geddes66 · Joined: 10 May 2003 Posts: 129 Location: Bakersfield CA

Thanks for all the replies all. It has been a big help.
_________________
The Porsche is now my son's, my car is cooler, slower but cooler.