I've been maintaining the standard oil level with my accusump, and got
booted out of the last run at the Maryhill hillclimb as a result--when the
car was sitting still there were a few drops under it. I tried to explain
to the tech inspectors that a few drops in the paddock don't translate to
oil on the track, but they were insistent, so I stuck it on the trailer.
Had enough anyway (NOT).
When I got home, I drained the oil, opened the accusump, then put the oil
back in until I was a little high on the stick. Started the engine and
opened the accusump. Got the pressure up to 80 pounds and closed the
accusump, stopped the car and I was out of sight low on the stick. added
enough oil to barely show, opened the accusump, restarted and ran it 'till
water temp was 195. Closed the accusump, turned off the engine, rolled it
back to a clean spot and let it sit overnight. No oil.
Damn.
-----Original Message-----
From: WEmery7451@aol.com [mailto:WEmery7451@aol.com]
Sent: Friday, October 05, 2001 10:41 AM
To: kaskas@earthlink.net; JElbe@superflow.com; vinttr4@geneseo.net;
fot@autox.team.net
Subject: Re: Rear seal survey
In a message dated 10/4/01 7:38:26 AM Pacific Daylight Time,
kaskas@earthlink.net writes:
<< Insert the pieces into the groove, usually a couple to start with a
little more sealing goo, then insert the tool and drive the seal material
down hard with a hammer. Keep doing this one or two pieces at a time
until
there is just a little sticking out the groove, trim that with a razor
blade
and it WILL seal.
You'll use almost twice as much material as the length of the groove.
Remember to hammer and hammer and hammer.
>>
Hi Kas,
I do not know if I managed to catch everyone's responses, which I have
been
putting into a file. When my wife gets on the computer, things seem to
disappear,
I have done plenty of hammering of Permatex soaked felt to seal the rear
main
bearing cap. Most of the time, I am laying under the car getting my
clothes,
face, and hair covered with Permatex. After every four races, I have been
changing out the main bearings, rod bearings, and sometimes thrust washers
from under the car. The more professional people pull their engines, and
do
all this work in an engine stand. I have two stands which seem to get
used
only between calamities.
As far as I can tell, I never had leakage problems through the felt seals.
All the oil appears to escape from the aluminum grooved oil sling, which
works in conjunction with the crank grooves. I have gone through the
following stages with this part:
1) Installed both used and new slings using the tapping method explained
in
the shop manuals.
2) Had a mandrel made to center these seals, and have been using it.
3) Hardy Prentice informs me that the mandrel dimensions are wrong in the
shop manuals, though mine seems to work (not stop the leaks).
4) The most recent theory is when I am cleaning an old moldy block and it
appears that the aluminum sling has never been removed, I leave it in
place.
The British might be the only ones who can properly install these seals.
I
am now keeping the oil level lower and using an accusump, which seems to
help
some.
Question: Did you or the Group 44 cars use this aluminum sling, or were
the
grooves removed from the crankshaft and a lip seal installed?
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