Tom Lins Messages: 372 Registered: February 2004 Location: St Augustine, FL
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Senior Member
kingd wrote on Wed, 23 June 2021 22:41
Sounds like the pressure relief valve in the pump is stuck. This could happen while sitting over the winter. I don't have my /Carter pump handy but I think there is an external screw with a spring under it and the relief shuttle. See if you can find it and if the shuttle is stuck.
This Carter P4070 is a sealed unit.
Tom Lins
St Augustine, FL
77 GM Rear Twin, Dry Bath, 455, Aluminum Radiator Quad-Bag Suspension Solar Panel
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