Quote:
Originally Posted by pfilean
mviker - I have a problem about like you describe and also would like to have a solution. And I like your pictures. Don't know where they came from but they seem to explain a lot. My 61 manual has about the same picture for the V8 but without the housing shown.
What I still don't understand is the comments about CW/CCW rotation. I have never seen a system where V belts run any pulley on the flat side of the belt. Always on the V side in a pulley groove. You never bend a V belt backwards over a pulley. And then as you think about it I have never seen a differential with the ring gear on the passenger side. Not that it can't be done but I have never seen it. Which means that every engine I can think of must rotate CW when viewed from the front of the car or the car would move backwards in the conventional forward gears.
So although the parts people list both CW and CCW pumps I think that they are failing to say if they are viewing from the front of the car or from the drivers seat.
And as to all the pump vane styles I suppose that different engineers may have different ideas about pump efficency with different vane styles. Although NAPA has a informational post with their online listing that they seem to think explains it.
But we still don't know for sure what parts number from which parts house gets a pump that will cool in traffic.
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pfilean,
We've both got mechanickeith to thank for the shots. I pulled them from one of his previous posts that he put up on this subject. The diagrams pretty much speak for themselves on the issues we may have with the 4 bolt pumps. I have definitely seen the shorter vaned pumps in the past with my Bonneville. don't know what's currently in my GP, but if it's the short vane, then that would explain to me why I still have overheating issues although I've done everything possible to solve them. If nothing else, it's one more item to eliminate on the possibility list.
As for the counterclockwise vanes, I am positive the pump rotates in the same direction as all the others, but the vanes simply point in a different direction. Show me a car where the engine rotates the opposite direction and I'll gladly eat crow. Doubt there's one out there that hasn't been modified to do so, perhaps in boating for instance, but I doubt the reverse vanes were designed for that. I could be wrong!
I'd like to have one or two spare water pumps no matter how this goes, so yeah, a P/N that will get the deep vane pump would be nice, but if nothing else, just knowing this info is good enough to at least know what we're looking for. If you go to a parts store and they hand you anything that's not deep, then you know to hand it back to them and not even mess with it until they show you the correct one.
As mentioned., I want to hit the junkyard also. Gonna pull all the pumps I can find and check 'em out next time I go. There are a few 62's that I know of. Need to see what they have. If they're the right ones, I'm pulling the impellors and hanging on to those puppies!
Kevin