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914World.com _ 914World Garage _ I want to keep my trans beautiful.

Posted by: Dr. Roger Jul 11 2005, 07:13 PM

it's fresh from the rebuilder and is clean. Not polished, although I am tempted to just polish the rear of the trans so if anyone peks under there at least there will be a little eye bling bling.

I'm thinking of going over the rear and bottom with the 3M pad and some rubbing compound to semi-polish it.

Maybe whip out the large angle grinder with a polishing pad on it and the rubbing compound.

But then what?
How to seal it?

Anyone done this?

Muchas gracias' for all you input. =-)

Posted by: qa1142 Jul 11 2005, 07:21 PM

Put a coat of wax on and stick it on a shelf

Or enjoy driving it

Posted by: Dr. Roger Jul 11 2005, 07:26 PM

What's that saying, "I want my cake and eat it too".

I was thinking just a rattle can varathane.

Or would laqueur better?

Once that stuff is on, clean-up chores would be no problemo'....

Posted by: ArtechnikA Jul 11 2005, 07:28 PM

without some kind of sealer the magnesium will grow white fuzzies in a hurry.

Posted by: SirAndy Jul 11 2005, 07:43 PM

QUOTE (rogergrubb @ Jul 11 2005, 06:13 PM)
How to seal it?

this has been discussed before. i still vote for acrylic (sp?) clear coat ...

never tried it myself, so let me know if it works!
Andy

Posted by: Mueller Jul 11 2005, 07:52 PM

has anyone measured the temperture the outside of the case gets??

I know you can get a tape that'll turn colors once it hits a certain temp....

Posted by: ArtechnikA Jul 11 2005, 08:03 PM

QUOTE (Mueller @ Jul 11 2005, 09:52 PM)
has anyone measured the temperture the outside of the case gets?

figure < 250F.

above that and you're not draining the old oil through the hole in the case, you're taking it out with spoons and scrapers.

in a 914, behind the engine and above the exhaust, i have no doubt it reaches over 200F.

when the 911RSR's hit 300HP (at 2,8 liters) the transmissions got a trombone cooler on the left side of the car, to match the engine cooler on the right. so somewhere around 300HP - if you're USING it for sustained periods - you'd expect to be at the oil's thermal limit without additional cooling.

it's a tradeoff - coatings will keep heat in, but if they shed oil and dirt, it may be a net gain. i have my own preferred coatings but i have no testing, so i'm not going to recommend anything... with an *assembled* case, i think a clear polyurethane spray is probably as good as anything. common automotive solvents will strip a lacquer in no time...