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second hand radiator

pitbull

New member
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Location
Nova Scotia
Hi,
I just bought a used radiator that has been recently re-cored.The guy i got it from said it was removed from a truck that had a blown motor or transmission he wasn't sure which. Would it be safe to just flush the trans.cooler or run an external one? What about the oil cooler? Thanks, Dustin
 

devilman96

New member
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Location
Boca Raton, FL
Just flush the lines with some mineral sprits, carb cleaner, etc and give it a good blow out the an air hose to make sure there is no debris in the line. For the coolant side (shouldnt need cleaing if it is a recore but), if needed you can lay the radiator on its back (inlet/outlet facing up) and pour in a cup or two of CLR (calcium, lime, rust remover) and top it with water, repeat if needed but don't let it sit for more than 10 mins at a time the stuff is acid.

Its always better to run an additional trans cooler if you can fit it into the vehicle... Heat is the number one killer of automatic transmissions... Place it on the out flow side of the radiators cooler, the larger in size the better.
 
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