H Water Pump Woes

dstates · Apr 21, 2013

I'm still working on my H water pump. I got a new bearing nut since I cross threaded my last one (thanks, Zach), but when I spin on that nut and just get it barely snug the pulleys on the pump get really stiff.

Without the nut I can spin the pulleys with a little bit of resistance (spin it hard and it continues about 1/4 turn). Once I just barely snug up the nut, it takes more effort to spin it and definitly doesn't continue spinning.

I'm looking for help. [b:4885cd2f22]How stiff should it be? Any suggestions?[/b:4885cd2f22]

Thanks!!!

Janicholson · Apr 21, 2013

Assuming you are discussing the packing gland nut that compresses the rope, that is pretty normal. It should be tightened such that the ropes are compressed, then the backed off till the hub spins as you describe (1/4 turn or so). It may leak, if so tighten it one flat of the nut each try until it stops. Jim

dstates · Apr 21, 2013

No, I'm talking about the bearing clamp nut that is female thread that goes on the outside of the shaft that holds the pulley assembly onto the shaft.

I'm guessing that the spacer between the two bearings is a little too short and I'm loading up the inner race of the bearings when I snug up the nut. If that is the case, I think the only fix is to remove one bearing and seal and try to shim the spacer some. But my first question still stands... [b:6ea32959cf]How stiff should it be?[/b:6ea32959cf]

Janicholson · Apr 21, 2013

At that point it should be spinnable for a couple of revolutions. (opinion) Jim

pete 23 · Apr 21, 2013

Did you put a new felt in behind the hub while working on the pump. That felt , when new will make a very heavy drag on hub. I would take out the felt and see how it tightens down without it. Ball bearing don't get tight unless you had a very heavy pressure on them, near the breaking of the bearing point. Either the hub is dragging, maybe inner seal is not pushed in far enough but I seriously doubt that it is too short of a spacer.

dstates · Apr 21, 2013

I did put in a new felt. I like the idea of removing it and see what happens. If it rotates fine without the felt then by they time the felt takes a set I would guess it would be fine. I think I'll have time this week to get to that.

Thanks for the idea. Any others???

H Water Pump Woes

dstates

Member

Janicholson

Well-known Member

dstates

Member

Janicholson

Well-known Member

pete 23

Well-known Member

dstates

Member

Similar threads