Radiator Cap PSI Cummins 6CTA8.3

smithbucks

New Member
Feb 19, 2010
44
San Francisco Bay/Delta
Boat Info
2003 460 Sundancer
Engines
Cummins
I had my mechanic down and he noticed my radiator caps were no good so he replaced them with new 7lb caps. The old ones were 16lb... I understand the higher the pressure the higher the boiling point. I ran the boat for a couple of hours over the weekend (with the new caps) and everything seemed to run normal.

Does anyone know of any potential problems running with the lower PSI caps?
 

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