Merc 39 with frozen impeller

[ken sorby]

Have a 1966 Merc 39. No water out the hole so I dropped the lower end to replace the impeller. The impeller seems to be frozen on the drive shaft. What's left of the vanes appears to be attached to a bronze bushing which I am unable to remove . Probably has a key or pin to stop slipping but I can't see it. Been soaking in Liquid Wrench, but so far, no help. Can't get a hold on it because of the pump housing. Hoping you guys might have a cure before I reach for the torch. Kinda afraid to apply much heat. Thanks from the new guy.

 

[ricksrster]

Re: Merc 39 with frozen impeller

What's your serial #? You might have to cut the impeller sleeve from the shaft. If your serial number is between this range, here's the water pump:
www.iboats.com/mall/partfinder/cart...gd_poid.111003/gd_row.1/session_id.139261405/

 

[Laddies]

Re: Merc 39 with frozen impeller

Ken that imp. is on a pin that rides on a flat spot on the shaft. Try to use a chisel to try move with shaft rotation to free it if that don't work use the chisel and some care and cut the hub to free it

 

[ken sorby]

Re: Merc 39 with frozen impeller

Thanks guys. Chisel sounds more intelligent than the torch

 

[ken sorby]

Re: Merc 39 with frozen impeller

Ser # is 1912044. Oldmercs.com says its a 1966

 

[ken sorby]

Re: Merc 39 with frozen impeller

Laddies- Your solution worked to perfection. A few smacks with a sharp chisel cracked the impeller hub and it slid right off.

Many Thanks, Ken