Originally Posted by bcomo
I wanted to add something about the purpose of a radiator cap.
The purpose of a radiator cap is to raise the boiling point of the water/antifreeze mix.
This is 100% correct. If one is concerned that the
correct pressure cap
will blow out the
cooling system, it is time to perform a
Additionally, the purpose of
7# caps was in the
using either water or an alcohol based coolant. On this time period systems, it will not only cause spitting but will ingest air on the
intake, creating air pockets and creating even more problems.
AC radiator cap
being correct for this period is interesting. I always cringed from anything not marked FOMOCO.