I did one on a euro 280SL that was a real bear. On the advice of a long-time tech, I sprayed with PB Blaster and let it sit overnight. Then I heated the pipe with a propane torch.

I braced myself so I could use my foot and leg against the wrench. It moved about 1/4 turn at a time, and I had to re-heat the pipe 3-4 times to keep it moving.

The trouble is that if you are working on the floor, it is impossible to use a handle long enough for the leverage you need.

__________________
Chuck Taylor
Falls Church VA
'66 200, '66 230SL, '96 SL500. Sold: '81 380SL, '86 300E, '72 250C, '95 C220, 3 '84 280SL's '90 420SEL, '72 280SE, '73 280C, '78 280SE, '70 280SL, '77 450SL, '85 380SL, '87 560SL, '85 380SL, '72 350SL, '96 S500 Coupe