rebuiling Max-E-Glas pump - what is this brass ring?

[twd000]

I got the rebuild kit for my 20+ year old 2 HP single-speed Max-E-Glas pump. I got the square gasket replaced by the strainer basket. I am working on getting the impeller out (it is locked onto the shaft pretty tight)

I found this brass ring around the impeller body - I don't see it in the parts diagram from Pentair. Also you can see in the photo of the impeller - it looks like some of the plastic has been chewed away. The brass ring is loose. So what does the ring do, and do I need to replace the impeller?

 

[mas985]

It is an impeller ring and part of the impeller. It helps to prevent re-circulation in the diffuser. However, it looks like yours spun on the impeller so yes, the impeller should be replaced and the ring comes with it. You may need a new diffuser as well. Inspect the inside of the diffuser where the impeller slips in and see if there are scuff marks.

 

[DBfan187]

that's attached to the diffuser, it's part of it

you should replace the diffuser, shaft seal, and the impeller

 

[bobodaclown]

Those are great pictures.

 

[twd000]

oh, so it was originally part of the diffuser, not the impeller? and it spun off and was left hanging on the impeller, I guess?

I'll order new impeller and diffuser

 

[DBfan187]

yes it's part of the diffuser. Did your pump perhaps run dry? cause that looks like it melted

I'd replace all of the o-rings also.

 

[twd000]

The pump was left on when they winterized so who knows how long it ran dry. I already have new seals and rings, just ordered impeller and diffuser

 

[twd000]

update - got all the new parts, took it apart and started rebuilding. I noticed in the diagram, a part called a "water slinger #C69-2"
I'm pretty sure I didn't have this part when I disassembled, and I did not order one with the rebuild kit.

1. what does a water slinger do?
2. do I need to buy and install a replacement?

 

[twd000]

also, I noticed that the shaft seal is kind of sloppy when inserted into the seal plate. I see in the instructions about tapping it in with a dowel, but there is no need since it is so loose. IN fact, the silicone I applied is the only thing keeping it in place until I screw on the impeller. Will this get deformed when tightening the impeller, or do I need to make up this gap somehow?

 

[swimcmp]

The seal should fit the backing plate fairly snug. The silicone shouldn't be what holds it in place. The slinger is a rubber washer on the pump shaft to keep water from getting into the front bearing of the motor. You may need to order a new backing plate. Max-E-Glas may have had an old style with a copper insert in it that the new style doesn't. If your pump housing is that old it may be of that generation.