How to change impeller in '72 50 HP Johnson

[Hoyt79]

50ESL72C...this is the hydro-eclectric shift, so, how hard is it to change the impeller? I have heard bad stories about the wires that go into the lower unit being compromised while seperating the lower unit from the rest of the motor. I don't want to mess this up because the hydro-electric system is working fine.

 

[tx1961whaler]

Re: How to change impeller in '72 50 HP Johnson

Tie a long string on the shift wires before pulling them down, then use the string to pull the wires back up when reassembling.

 

[Hoyt79]

Re: How to change impeller in '72 50 HP Johnson

Tie a long string on the shift wires before pulling them down, then use the string to pull the wires back up when reassembling.

I haven't taken anything apart yet, I am too uneducated at this point and of course afraid...from where should I have the other end of the string to pull the wires back up? after I unbolt the foot how far should I pull it down along with the wires?

 

[mars bar]

Re: How to change impeller in '72 50 HP Johnson

Under the hood beside the head you will see a blue wire and a green wire, those are your shift wires. you need to get the top of the shaft expose to get the new impeller on and slide it down.

 

[Hoyt79]

Re: How to change impeller in '72 50 HP Johnson

Under the hood beside the head you will see a blue wire and a green wire, those are your shift wires. you need to get the top of the shaft expose to get the new impeller on and slide it down.

do i have to pull these all the way down through the shaft?

 

[tx1961whaler]

Re: How to change impeller in '72 50 HP Johnson

Yep. That's why you tie the string to them so you can pull them back up through the midsection.