Hp500 Circulating water pump
#1
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Joined: Jan 2009
Posts: 52
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From: Portneuf, Quebec
Hi
is there a replacemen circulating water pump that can fit on my hp500 without buying it at mercury dealership ? I know that gmc put some 8.1 and 7.4 in there truck few years ago.
is there a replacemen circulating water pump that can fit on my hp500 without buying it at mercury dealership ? I know that gmc put some 8.1 and 7.4 in there truck few years ago.
#2
You could go with a Sierra brand one, but I would go with Merc.
I would not use an automotive recirc pump. The internals on auto ones are designed knowing it will have AF and they don't have SS internals.
I would not use an automotive recirc pump. The internals on auto ones are designed knowing it will have AF and they don't have SS internals.
#3
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Joined: Oct 2010
Posts: 1,621
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From: Cheboygan, MI
Using a marine pump is really critical if you don't have closed cooling. The seals are different and the automotive pumps need AF to lubricate them. I you have seawater cooling, you better make sure you bilge pump is working, because you will need it. I've burned out a couple of water pumps on cars running straight water before.
#4






