Ok, did a search and didnt find anything on removing the cooler to fix the leak under it. Can anyone help a guy out and give a little direction?

 

There's two 10mm nuts that hold it on from underneath... they're buried under all that goo and sludge. Kind of a PITA to get at, you'll need a 10mm combo wrench and patience. Before you remove those you have to unbolt the big steel hardline that goes from the front cover to the oil cooler - be VERY CAREFUL with that, as it does not tolerate bending! You don't need to undo the whole thing, just where it goes in to the oil cooler. (Expect a cascade of oil) It's also a good idea to remove the coolant hoses too, and before you do that it's a good idea to drain the coolant first (bolt on bottom of engine, on the engine housing between the two rotors) so you don't spill coolant into any oil passages.

Yes, it's messy. Yes, it sucks. Yes, you'll need to do it again after those O-rings harden and crack, too. (Get an air/oil cooler setup from a '79-82 model or better yet a GSL-SE)

 

Ok, makes sense. If I do got with the air to oil will I also need a new radiator? Or will it mount somewhere else? Can I see those 10mm nuts? I see one on top of the block,looking down from the drivers side.

Went t othe junkyard on Saturday, and they have a 85,84 and a 2nd gen. The 84 has some good suspension stuff(bushings) and the 2nd gen also has kyb shocks and ebreich springs on it. I'll be going back once it stops snowing and gets a litle warmer to get the bushings off the 84. I got a seat for $15 from the 85 gs which matched mine perfect(grey)


Anything I can get off the 2nd gen that will fit my 85 gs?

 

Don't forget the 12mm headed bolt also on the top. It is very common for the oil line to twist taking it off at the front cover. If it comes off it is easier than removing the banjo fitting at the cooler, but too many bent so I usually removed the banjo. To do that you will need a cheap 23mm box end wrench. Heat up the box end with a torch and remove the angle so it will clear the firewall. It is still not the easiest job but safer in my expierence unless you have a spare oil line. Another tip or 2, either replace the copper banjo washers if removed or put them back how you found them. 2 while you have the cooler off, replace the 2 o rings between the oil cooler and it's aluminum base. Most people don't know these exist, even at the dealers I've worked at. There are 3 nuts holding the base on. Just remove and replace the o rings. They are the same part no. Rob

 

I will tell you this when I did the O-ring replacement I must have screwed something up because now my oil cooler leaks all over the housing. I used one correct gasket and the other was a perfect match as far as I could discern. So make sure you use the exact right gaskets and have them seated properly (should be a pretty snug fit).