Water Pump Flow Question

[Joe L.]

Re: Water Pump Flow Question

I agree with John, the 'hot Corvette' syndrome is typically the result of a COLLECTION of out-of-spec issues that have to be diagnosed and fixed one at a time. Looking for that ONE item to replace is typically futile and costly.

Unlike John, I HAVE seen a whopping THREE cases where the water pump's shaft slipped relative to the drive hub and/or the impeller. But, that's an atypical situation and the rebuilder I use will NOT reuse a pump shaft once it's been pressed. Others DO rebuild pumps and reuse the original shaft...

Jack-----


Any rebuilder that reuses a bearing/shaft assembly is a rebuilder to be ABSOLUTELY AVOIDED. In my opinion, whenever a waterpump is disassembled the bearing/shaft assembly should be replaced. These things are not even very expensive.

[Doug F.]

Re: Water Pump Flow Question

Higher coolant flow rate improves the heat transfer through the radiator.


The old myth about coolant moving too fast through a radiator does not hold water. Why is it that no one ever makes the same argument for the air flow? I never hear anyone say that you should decrease the air flow through the radiator to cool the engine better.
Doug