"New" Remanuf. Water Pump, Why Is There A "Slit" on the top?

[Deleted User]

Quick question. I've just put on a remanufactured water pump from Hudson Motor Company (Ace Auto) in Cincinnati.  Very nice guy and super fast shipping.

But there's a small slit (open part) on the housing directly on the top of the shaft.  Does this water pump need to be oiled or greased? 

Thanks

SuperDave

I believe this is a slit that originally had a wire clip installed to hold the bearing in place. Probably un-needed with the pressed in bearing. No lube required.

bob ward

Interesting. What method is used in the rebuilds to positively locate the bearing in the housing? 

Frankvintagefullflowcom

The groove in the outer race becomes visible as the bearing is pressed into place as long as the rebuilder doesn't pass it up. I've always wondered what a rebuilder would do to extract a clip that is broken or rusted off as so many are.
Although that clip was used on all pumps of that design, I figured that the press fit, maybe with a drop of LocTite bearing mount, would be sufficient to do that job.
I have drilled/tapped a 1/4 hole, aligned with the slot/groove and used that for "insurance".
Frank

Geoff

Modern throw-away pumps have a groove in the casing and bearing which is pumped full of epoxy, which set hard and locates the bearing. You could probably do the same with a Hudson one but I prefer to use the spring clip.