I'm thinking of bypassing the leaking oil cooler lines on an 850.
Just want to use a piece of high pressure hydraulic hose and regular hose clamps on the ends. I'm not sure what pressure they're rated to - kind of doubt there's any rating. But still, they're fine with a cooling system, but those rarely ever see anything higher than 20 psi or so.

I think I would want at least 75 psi on an oil line. What do you think?

Some air conditioning fittings use worm gear (cheese grater) hose clamps......
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George Downs Bartlesville, Oklahoma

I've seen those as well, but only as repair fittings and always on the suction side. Amazing the stuff that sticks out like a sore thumb in the junkyards when you're used to seeing the same old same-old. I'd think the type of hose (ID makeup) would be a bigger factor than the type of clamp or ferrule, but the sort of experience needed might be found in a hydraulic shop.
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Art Benstein near Baltimore

Those who race through life finish first. (Darrel Hunsbedt)