Reply to "Cooling system over pressurized"

bosswrenchMember

Be VERY careful in pumping up the cooling system for testing. Most street radiators are only good for around 20 psi before the tubes start to 'balloon', ruining the assembly. This is why no one should be using 25-30 lb NASCAR caps to cure an overheating problem!

A 0-30 psi gauge can be temporarily added in place of the radiator drain fitting and a second one to the air-bleed fitting. When the engine is run, the difference between the two gives an indication of the restriction from the radiator itself. And no holes need be drilled to do the check.

8/17/1512:54 PM

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