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Pressure cap for cooling system

psotis

New member
"I have an MD-11C with "fa

"I have an MD-11C with "factory" freshwater cooling from Sabre (Sabre 34). It is based on a double Johnson pump, one stacked on the other, in case this helps identify the system.

It looks like at some point in recent history the pressure cap was replaced by a Stant 4 psi cap. This seems like a very low rating, but I don't know for sure. Anyone have a good idea of what pressure these systems should run?

Thanks,
Phil"
 
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