Re: Small block short water pump orientation



Mike Romain wrote:

How long do you want the engine to last?

Normally the channels inside are designed for flow in a certain
direction. Reverse that and you will likely get water boils or air hot
spots and start burning things like valve seals, valves, etc....

The engines that 'are' reverse flow have special bleed circuits to keep
the air out of the heads as far as I know.

Turning the pump over isn't going to reverse the flow - the pulley will
still turn the same direction. Even if it did reverse the rotation
direction it wouldn't reverse the flow since this is a centrifugal pump.
although, running it with the rotation backwards will make it pump much
less efficiently.

-jim



I think I would work on the mounts a little more. A few shims here and
there can line up lots of pulleys.

Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
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Dave wrote:

On the pump I have, the heater hose comes out the side, not the top, so
that isn't an issue. The radiator hose will be pointed to the driver
side and I can specify that the radiator have a driver side inlet.

The bigger question is does it make a difference if the pump is upside
down. Any holes to plug?

ray wrote:
Dave wrote:
I am doing an engine swap for a SBC and the power steering pump
(Saginaw) is in the way. I can mount it on the passenger side, but
that means turning the short water pump upside down. Can the water
pump be mounted upside down? Anything special about doing it that way?

Thanks for the help.

Dave


1)your lower rad hose inlet will be pointed to the driver side, so you
might have a hard time hooking it up...

2)the heater hose connection that's normally on top would be pretty near
impossible to use if you flipped it over.

Is it not possible to keep the pump on the driver side? There are quite
a few different sets of stock chevy brackets over the years, and as long
as you can get the pulleys lined up, it doesn't really matter where the
pump goes - on my race Camaro I had to make my own (cheesy looking but
effective) bracket because nothing lined up with the pump I had.

Ray

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Relevant Pages

  • Re: Small block short water pump orientation
    ... The engines that 'are' reverse flow have special bleed circuits to keep ... On the pump I have, the heater hose comes out the side, not the top, so ... side and I can specify that the radiator have a driver side inlet. ...
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  • Re: Small block short water pump orientation
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