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Old 06-16-2010, 11:16 AM
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SBF water pump rotation

Is this pump reverse rotation or forward?
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Old 06-16-2010, 02:23 PM
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My thoughts are since the points are up in the opposite direction, I`d say it`s reverse rotation, but don`t quote me on that. Why I`d think so is since the coolant enters the up points and pushed in the direction there pointing.
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Old 06-16-2010, 02:37 PM
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Yes, that is reverse rotation. Cold water from the radiator comes in from in front of the impeller feeding into the center of the impeller. Impeller rotation is clockwise as looking at the photo you posted, the impeller is pushing the water out from under its center into each scroll to the pump outlet ports that feed into the block.
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Old 06-16-2010, 04:00 PM
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Ok, thanks.

Here is the problem. Customer brought in a 67 mustang with a 92 302. He wants to keep the serpentine but he's only spinning the water pump and an alternator.

I think what I'll have to do is add an A/C delete pulley so I can route the belt to get enough contact on the water pump.

Anyone done this?
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Old 06-16-2010, 04:13 PM
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Either something like you suggested, or go to a set up like March uses for conversions in place of V-belts. Water pump pulley is grooved for the serp belt instead of smooth so it can be run in the same direction as V-belts, just like the V-belt routing. You can get just the single waterpump pulley from March, you don't need to get the whole kit from them. If you look you may find other sources for a serpentine grooved water pump pulley also.
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