Drain coolant when replacing rear main seal?

[intergalactica]

I'm going to replace the rear main seal and I wanted to know if its necessary to drain the coolant?

Also, while I'm in there...should I replace anything like the oil pump or the screen? Any suggestions would be helpful.

Thanks!
Rob

 

[340jeff]

if your just pulling the pan should be no coolent leak. at least look in the oil punp screen to be shure its clean

 

[340sFastback]

If you have to jack up the engine up to get the pan off you might want to drain coolant remove the lower radiator hose. I didn't and it caused the lower radiator nipple to crack and leak requiring a trip to the radiator shop.