Oil Cooler Cover Replacement Pics and Tips (1 Viewer)

Joined
Jan 27, 2020
Messages
37
Location
CA
It took me a few days to trace a coolant leak to the oil cooler cover. Don’t let the size of the holes that these develop fool you, you can lose a lot of coolant. Under pressure it will squirt out.

I ordered the cooler cover, hardware, and gaskets from PartSouq.

As you can see, there was a lot of nasty crud built up inside the cover and around it. I’m still flushing with distilled water to help clean it out.

A couple of deviations from the FSM: I did not drop all the lower exhaust components, I only unbolted the front exhaust manifold from the lower exhaust pipe. I also did not unbolt the air pipe from the engine, only from the exhaust. Plenty of room to slip tjr

Tips:
1) Clean out the holes where the exhaust manifold studs go. No brainer, but I was a little lazy and didn’t do this, had a hard time with one stud.
2) Use a proper long extension to work on the underside of the exhaust manifold to the exhaust pipe bolts. You don’t want to have a Frankenstein extension wobbling all over that tiny torx head.
3) If you use a lot of penetrating fluid to loosen up the exhaust hardware, it will likely burn off the first time you fire up the engine. It will look like you have a bad, smoky exhaust leak. Make sure it’s burned off completely before you start throwing your wrenches across the garage.

I took it slow and it took me a long weekend afternoon to do this job once I had all the parts. Probably could it in 2 hours again. Happy to report that my 80 is now back on the road, no leak.

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Joined
Jan 27, 2020
Messages
37
Location
CA
Dang....how does one get that nasty.

Mine....when I took it apart at 316,000 miles.

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Cleaned it up, put in new seals, relief valve plug and spring.....good to go.

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Wow looks super clean! I honestly don’t know how it got like this. Bought it in December with 215k on the odo but it’s busted so who knows how many actual miles. I’ve flushed it 5 times now (with about 3.5 gallons of distilled each time) and it’s still coming out yellowish rusty with minerals at the bottom of the bucket.

Front bearings and spindles were toast when I got it, there was lots of mud in the knuckle housing. I had to replace the carpet because there was so much dirt and funk inside. Desert dust in every nook and cranny.

I’m light driving it every day now so hopefully she’s coming back to life after probably years of abuse and neglect.
 
Joined
Sep 10, 2018
Messages
272
Location
West Viginia
I’m putting mine back together and the grind kit has
* one large oil cooler gasket (15725-66010) and
* 3 small gaskets (15786-66010).

I think that I know where the 2 small (15786-66010) gaskets go.

Where does the third (15786-66010) one go?

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