Originally Posted by jimmypete

I am going to tackle this issue on my 84 300D sometime soon. I plan to drain the oil like an oil change, cut the two hoses, remove the oil cooler, cut the collar off, remove the hose and leave the barb intact. I don't plan to unscrew the barb fitting from the cooler. I plan to cut the collars off the metal lines still attached to the car and remove the hose from those barbs. Then I will put 5/8" hose with the Norma clamps. BUT what I figure I'll do is cut a pair of slits lengthwise for an inch or two on each end of the replacement hose, to make an alligator mouth on each end of the hose. I plan to put those two pieces over the collar at the top of the barbs, and put a clamp on that side, simply to keep the hose from pulling off. I will use one or two other clamps as others have used here to make the seal around the barb. Will also use the silicone gasket material as well. Should work. I figure a little bit of leaking ain't gonna blow my engine - it's a sudden blowoff that would do that. So slicing the hoses lengthwise for an inch or to so I can extend those flaps over the collar and clamp them there should make it less likely to blow off. Whaddaya think?