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57 chieftain with 347 ci engine - water pump

 
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clevelandice



Joined: 15 Mar 2015
Posts: 4


1957 Chieftain

PostPosted: Sun Mar 15, 2015 10:13 am    Post subject: 57 chieftain with 347 ci engine - water pump Reply with quote

Anyone know for certain if a water pump on a 57 347 is a clockwise or counter-clockwise rotation? I will be adding AC and it has stock power steering. Engine I have was acquired first and the 57 chieftain I got had it's engine out of the car when I bought it. Advanced Auto says I need to know if it CW or CCW.

Thanks for any guidance.
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Larry
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Joined: 01 Jun 2006
Posts: 4768




PostPosted: Sun Mar 15, 2015 1:31 pm    Post subject: Cooling Flow Reply with quote

I think the parts guys may be confused because Pontiac's early V-8s used what was called "Reverse Flow" cooling. We just posted a technical article about this in our On-Line Magazine at; http://www.pontiacregistry.com/members/online_magazine.php?view=1&article=1169. You should check it out.

Below is a shot from the 1957 Pontiac Shop Manual of the coolant flow in the engine. If you were to consider rotation as sitting in the driver's seat (which I think is correct), then it would look like (judging from the arrows) that the water pump turns counterclockwise.

Let us know if you get any further information as I have heard in the past of impellers that were opposite direction with their vanes, but have never had to make a determination on any of my projects in the past.

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