Re: Replace trans cooler with molded radiator hose

Posted by Mike On 2012/3/15 8:46:03

FWIW, i bypassed the internal radiator cooler on my 50 after getting the radiator cleaned out. I routed out of the ultra into a long (24"ish,1st one below) aluminum finned tube cooler that's mounted against the frame rail (so the frame rail should act as a heatsink) and then up front and into two (in series) plate/tube type (second below) and back to the tranny. Both of the plate and fin are mounted side by side on the bottom of the radiator. I had plenty of pressure for lock up firmly at the right speed, but then again i JUST had the trans totally rebuilt too so everything was perfect. I figured this way i was getting the frame heatsink cooling effect, separating the radiator heat from the tranny heat (i really felt that the engine had a better chance of running everything hot together), and with all that hose and coolers, i think it took an extra quart or two of fluid, which helps keep things cooler and cleaner longer.

my 2cents, take it for what it's worth, i'm not a tranny expert or anything