Separating a "stuck" wet end from a Jet pump motor

[DangerBoy]

I'm starting to get my hot tub ready to fill in September. On my list of things to do before filling is to track down where a leak was coming from up near the wet end of the jet pump #1 and remedy the problem. I've removed the pump and there's good evidence that the problem is what I suspected and that is a leaky shaft seal. There's lots of scale around where the motor shaft goes into the back of the wet end.

I'm trying to remove the wet end off the motor but it really doesn't want to come off. I cannot get the impeller to unscrew off the motor shaft. I have a feeling I'll have to destroy the wet end to get it off just like last time when I replaced the wet end on the other jet pump. Sometimes they get fused onto the motor shaft and you're left with no choice but to trash the wet end to get it off the motor.

Does anyone have any tips or tricks they could share that might help me get the impeller to unscrew off the motor shaft? Failing that, does anyone have any tips on how best to destroy the wet end to get it off the motor?

TIA

 

[ajw22]

Let's see what pro tips @RDspaguy will share when he wanders by.

 

[DangerBoy]

Let's see what pro tips @RDspaguy will share when he wanders by.

It doesn't seem like he's very active on this site here just recently. I wonder if maybe he's on vacation or something...

I have my replacement wet end here and ready to install once I get the old one off the motor but there's no hurry to do it as I can't fill my tub for a few weeks anyways. The city I live in has level 4 water restrictions on right now due to repairs to one of the feeder mains going on.

I can certainly figure out how to get the old wet end off using crude, brute force methods but I'm hoping someone will be able to show me a more elegant way of doing it that won't create so many broken pieces.

 

[RDspaguy]

Post in thread 'Viking "Destiny River" rebuild.' Viking "Destiny River" rebuild.