rebuilding a lower unit

[geofisherman]

I am wanting to know if rebuilding a lower unit for a '72 25hp evinrude is difficult. And if any special tools are needed to do the job.

 

[totalivewire]

Re: rebuilding a lower unit

I just buaght and fixed my first motor, a 40hp 1972 johnson. rebuilding is pretty simple and doesnt require any special tools.Just take a few minutes and recognize what goes where and how it runs you'll do fine.

 

[jimtodd72]

Re: rebuilding a lower unit

Go for it. My first experience was with a 1971 Johnson 100 hp hydroelectric shift lower unit. Get a good manual and take your time and try not to get intimidated by it...it's just a machine and people put it together to begin with. You'll be amazed by what you learn.<br /><br />Good luck,<br />Jim

 

[geofisherman]

Re: rebuilding a lower unit

Thanks for the confidence booster. I am going to go for it. Thanks again.

 

[slow_boat]

Re: rebuilding a lower unit

You will find the job much more straightforward if you buy the manufacturer's manual as opposed to one of the generic ones. They cost a bit more but are well worth the investment.

 

[scotiany]

Re: rebuilding a lower unit

I wouldn't say that the manufacturer's manual is all that great for rebuilding lower units. The one I've got lists only the special tools you're supposed to use. The Seloc manual list the special tools but, also gives alternatives.

 

[slow_boat]

Re: rebuilding a lower unit

Yes, the factory manuals do refer to factory tools but, as previously stated in this thread, no special tools are needed to rebuild the lower unit on this engine. The factory tools usually make the job easier but are not cost effective for one time repairs. <br /><br />My Seloc manual is ambiguous on one of the lower units I recently rebuilt (shows the same part being installed 180 degrees different in two different drawings & the part will fit either way. Unfortunately only one way is correct and the bearing carrier can be ruined if installed incorrectly).