Bill:
I've never seen such a radiator cap; are they common or custom?
I'll look to see if one is available. I was also thinking about the overflow port and feeding it into my expansion tank - thanks, I'll seriously consider that as well.
Jeff
Jeff,
On my radiator, I have a solid cap, no pressure relief. This cap seals at the top of the radiator neck, not down at the bottom where the
pressure cap seals. That allows the coolant to rise into the overflow neck. The overflow neck nipple is then plumbed to the bottom of my swirl can and the swirl can has a pressure relief cap on it. I think 21 lbs on the pressure relief cap.
This system automatically eliminates air and I periodically check the swirl can to see if I need to add coolant. I only have to add coolant
if I have had the system apart for maintenance and introduce air.
Bill B
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