The title says it all, man. I was able to remove the old oil cooler without removing the radiator by carefully prying it away using a heated chisel on the solder. Crazy you may say, but it worked.

Had to do quite a bit of on-the-fly metal work to get the replacement one back in that tight space, but that too worked.

Thanks everyone for your advice.

Vernon

A perfect happy ending.

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84 300D, 82 Volvo 244Gl Diesel