suzukisteve

iTrader: (4)

Is there a way to test a radiator outside of the car for leaks? I have an extra sitting around and have no clue how to pressure test it, especially since there are no cap fittings on the top of these things.

fendamonky

iTrader: (6)

Cap all the access points to the radiator and thread a high pressure air line into one. Submerge the radiator in a tub of water, then pressurize the radiator.

If you get bubbles than you have a leak. No bubbles means no leak

suzukisteve

iTrader: (4)

My issue is the caps or lack of. I really cannot think of any kind of material to create a cap or seal the radiator outside of the car, without damaging it.

fendamonky

iTrader: (6)

Get two silicone couplers, bolt one side to radiator and a plug to the other?

If you have a ratty old radiator hose that you can cut up than I figure that would work too.

Any half decent radiator shop should be able to do this for a minimal fee.

suzukisteve

iTrader: (4)

Thanks for the tip, Fendamonky, I should have just gone to a radiator shop in the first place.