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This may be a basic question, but I am a bit stumped. Even though I have been wrenching Volvos for over 30 years. First some history. Back in the late 90's, I had a 740T that lost 2nd gear on its tranny. So, I swapped in a M46 from a 240. There were some differences, such as the original 740 tranny had an Aluminum case with a P-type OD, and the 240 tranny was iron case with a J-type OD. Just had to swap the shifting cage and drive shaft coupling, and the 240 M46 bolted right up. Drove the car this way for a number of years. When it was time to retire the 740, I grabbed the tranny (240 M46 with J-type OD), and put it in the basement as a "just in case" spare. That was 2003.
I am now in the process of restoring a 1972 1800ES with a M41 tranny with J-type OD. Due to a storage mishap, the aluminum case of the OD is badly oxidized around the oil sump, and is not salvageable. I am looking to try using the J-type OD from the M46 tranny mentioned above. From my initial look, I think it will work. Will know for sure once I get the OD off the M46. That is where my problem is. It will not come off the M46. I had it off the M46 back when I was installing the M46 into the 740. But, it does not seem to want to come off now. It has been close to 18 years since the M46 was last driven and the OD energized. So,any pressure in the system would have bled off long ago.
Any suggestions on how to get the OD off the M46?
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Gary D
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