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Ugh. Pointless post, just complaining. Posted by Justin VanAbrahams [Email]  (#32) [Profile/Gallery]
(more from Justin VanAbrahams) on Mon, 26 Aug 2013 11:29:31
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When I bought by '85 SPG in 2010 (I think?) after doing a bunch of engine bay work I changed the oil. I found a TON of RTV all over the drain plug, and assumed someone was just too lazy to replace the sealing washer and thereifixedit instead. I replaced the drain plug & washer and called it a day.
Since then, I've had a very slow leak from down below, but assumed (lot of that, yeah?) it was a seal or something somewhere and ignored it. Well, on this last oil change a month ago the leak got really, really bad - to the point I could just about watch it drip from the drain plug. I had to address that...
After futzing with drain plugs and sealing washers for about twenty minutes (BTW, it's fun changing drain plugs WITHOUT draining the oil first), I got out a wire wheel and some brake cleaner and shined up the whole bottom of the transmission. That lead me to discover a crack radiating out from the drain plug, the source of my leak. CRAP.
The drain plug hole is cracked all the way through, from the threads to the outside casing, about 1/16" - 1/8". The transmission in this car works really, really well and it's a crying shame to trash a whole gearbox because of an oil leak, especially these days with parts becoming scarce.
I did what any sane c900 owner would do, and broke out the JB Weld. I drained the oil, scuffed up the transmission case with some 200 grit sandpaper, hosed the whole thing down with cleaner, and carefully applied JB Weld upside down about 1/4" in every direction beyond the crack. I rigged up a 55w low beam headlight to a battery and positioned it directly under the repair to help the JB Weld set fast and not drip, and right now it looks pretty good.
It's still obviously cracked through the threads, and that crack extends across the surface where the drain plug head goes, so tonight I'm going to use a small triangular file and make a little divot where that crack is and fill it up with JB Weld too. I'll use a sanding block to get it flat again, and probably have to do future oil changes with some thread sealant. But HOPEFULLY that works. The car doesn't see big mileage, just a few thousand a year, so with any luck I can make this repair last a good long time. I have other transmissions I could swap in, but it just seems really wasteful to trash a whole gearbox because of such a stupid problem!
posted by 12.195.130...
, Mon, 26 Aug 2013 11:29:31 <-- Viewing This Message, Sun, 1 Sep 2013 11:37:42
, Mon, 2 Sep 2013 10:28:49, Thu, 5 Sep 2013 10:38:51, Thu, 5 Sep 2013 10:40:07, Tue, 27 Aug 2013 16:56:02
, Tue, 27 Aug 2013 23:40:07, Wed, 28 Aug 2013 12:51:17, Wed, 28 Aug 2013 22:30:14, Tue, 3 Sep 2013 08:43:51, Thu, 5 Sep 2013 10:33:31
, Mon, 26 Aug 2013 12:37:13
, Mon, 26 Aug 2013 11:55:50, Mon, 26 Aug 2013 16:22:11, Mon, 26 Aug 2013 14:41:18, Mon, 26 Aug 2013 16:12:26
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