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I recently used the below to remove the gasket for the 944 oil pump and for residual from the oil pan gasket. I tried all sorts of other chemicals in my garage on the oil pump gasket but nothing worked (acetone, paint thinner, goof off...). This product worked very well, but did have to apply it 2 or 3 times to get it all off. It is Methylene Chloride and so I was extremely careful... special chemical resistant gloves, goggles, well ventilated, face mask.
I'd also recommend a hard plastic scraper to help scrape the stuff off without damaging the surface. I used the below (found these to be very useful in the shop).
Fashion a scraper like this from copper pipe and carefully sharpen the edge with your bench grinder so it’s even across. Won’t gouge the aluminum and it’s a very effective scraper.
Fashion a scraper like this from copper pipe and carefully sharpen the edge with your bench grinder so it’s even across. Won’t gouge the aluminum and it’s a very effective scraper.
After experimenting with a bunch of different methods when I did a head gasket last winter, I arrived at the same conclusion. Keep a honing stone handy though, as the copper loses it's edge quickly, which is actually a good thing. It only takes a few swipes on the stone to get it back, however.
Thanks again for the suggestions. I ended up using a new single edge razor, brake clean, a green scotch-brite pad and lots of care. I was able to get all of the sealant off and not damage the surfaces.
Thanks again for the suggestions. I ended up using a new single edge razor, brake clean, a green scotch-brite pad and lots of care. I was able to get all of the sealant off and not damage the surfaces.
Regarding the scotchbrite, I've read multiple warnings against using it because it sheds aluminum oxide particles, which is 'evil stuff' to have inside of an engine or gearbox. I realize I'm just parroting stuff I've read on the net. I guess it depends on how paranoid you want to be.
Regarding the scotchbrite, I've read multiple warnings against using it because it sheds aluminum oxide particles, which is 'evil stuff' to have inside of an engine or gearbox. I realize I'm just parroting stuff I've read on the net. I guess it depends on how paranoid you want to be.
Yeah, that's a little too paranoid. I've use brown-ish 000 pads for 25 years on hundreds of transmissions, not a problem. At a minimum, you'll wipe down the surface afterward with a shop towel, maybe moistened with brake cleaner, to clean it up real good. Often, the gasket scraping precedes a trip through the parts washer as well. So a little pad dust really isn't going to be an issue.
Last edited by KevinGross; 02-02-2021 at 12:19 AM.
01-24-2021, 07:52 PM
