Id be afraid anything with a solvent (or other chemical really ) could only do damage to the potting. Id leave it alone.
Depends on the paint, there's no need to, & it's doubtful it'll save it if it is in an enviroment that would cause it to "leave". The potting protects the electronics from the environment & vibrations, not heat nor does it particularly dissipate it, the heat sink for the transistor & metal housing are the only things doing any heat-dissipation.
The current ECU is "melting" the potting off the back of it. We've had some pretty hot days this summer and I can only guess that's what caused it.
Something else to consider. Relocate the ECU to the interior of the car. A good place is on the toe board on the passenger's side. Get it totally out of the way of the under hood heat. Mine is on the passenger's side inner fender in the corner right at the firewall. However, it sees no exhaust heat at all, since the intake and exhaust manifolds are both on the driver's side on a slant 6.
I don't recall where mine came from:
Try a steamer & plastic spreader/scraper, maybe get most of the rest out of module. You can purchase new potting material, pour it & start anew, just a thought. Spacing not a bad call at all if it's getting that warm in it's location.
I didn't realize there's an issue with melting. I guess I'll space mine out before I paint the engine compartment.
Lol, post#14..?....and Your 'Like' showed up in Hoppy's post for Me, yes He's got it going on for ign./electrical..
Yeah, yucky on white.......
The car had been sitting in a storage unit in Florida for about 14 years when I bought it. No potting left
Probably not....but that looks just like the standoff Honeywell used for their ignition boxes on certain furnaces and most all boilers.... on those, hightened humidity was certain doom.
..........that'll do it!!!
And lower the underwood temp. Wrap exhaust????
