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Old 06-20-2012, 01:44 PM
M500E M500E is offline
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Location: California
 
Join Date: Jun 2012
Posts: 3
Mein Auto: E34 M5;528it 5spd M-Wagon
Thanks to everyone for this thread. I just did my OFH o-ring, Vanos, and rear subframe bushings on my 232K touring, all last weekend! I was dismayed to see that my oil pan was my biggest oil leak, leaking virtually everywhere on the passenger side pan/block junction. I will properly drop the front subframe and remove the pan entirely at some point when the control arms and motor mounts need replacement. However, I wanted to present yet another option to fix this problem, and NO disassembly is necessary (other than splash shield)!!

There is a product available at many auto parts stores (and Home Depot last time I was there) called Seal All Adhesive. It's the only adhesive I've ever seen that is truly gas and oil resistant. This stuff is NO JOKE. I have used it successfully on a leaking gas tank with 100% success. I figured if it can seal a leaking gas tank, sealing a leaky oil pan gasket would be a no-brainer. I was right.

I cleaned the seam between the pan and block very thoroughly with brake cleaner. I then squeezed about half a tube of Seal All into a small container and "painted" the length of the pan/block junction with the Seal All. I used it very generously, but you shouldn't need to lay it on as thick as I did (I used only a few thin coats to seal the gas tank). I let it sit overnight and there have been no leaks since!

It dries quite hard, but you can chip it off easily with a scraper in the future if you have occasion to remove the pan and replace the gasket. I highly recommend this product! It makes a great adhesive as well.

Happy wrenching,
Gregg
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