Radiator Leak Test

Radiator Leak Test, Removed Front the Vehicle

CAUTION: Never leak test an aluminum radiator in the same water that copper/brass radiators are tested in. Flux and caustic cleaners may be present in the cleaning tank and they will damage aluminum radiators.

NOTE:
^ Always install plugs in the oil cooler fittings before leak-testing or cleaning any radiator.
^ Clean the radiator before leak-testing to avoid contamination of tank.

1. Leak test the radiator in clean water with 138 kPa (20 psi) air pressure.

Fan Inspection
Inspect the fan blade for cracks or missing or bent blades.