1981 evinrude 7.5 impeller shaft stuck in engine side

[Mctrick]

Is there an indent ring or is there a pin holding the shaft in place? My thoughts are using a 5lb sledge hammer head as a slide hammer against a pair of vise grips to tap it out. I've used Gibbs penetration oil and soaked it overnight.

 

[Crosbyman]

where you able to drop the gc a bit & flip it over and drain the Gibbs down the shaft to soak the splines ...??

 

[Mctrick]

When I pulled the lower unit there was no key way to lock the impeller in place and the shaft came out of the lower unit. I bought this motor for $50 and the young man that I got it from had said that it wasn't pump water. So no key way was put back in the impeller shaft when whoever reinstall the impeller.

 

[Mctrick]

where you able to drop the gc a bit & flip it over and drain the Gibbs down the shaft to soak the splines ...??

Yes

 

[Mctrick]

When I pulled the lower unit there was no key way to lock the impeller in place and the shaft came out of the lower unit. I bought this motor for $50 and the young man that I got it from had said that it wasn't pump water. So no key way was put back in the impeller shaft when whoever reinstall the impeller

 

[Mctrick]

Yes

Lower unit is completely off

 

[racerone]

Nothing is holding it there but RUST------303191 is the 0-ring that keeps water out of the spline.------Often left out by a novice.---Often they forget to grease the spline on assembly.-----Then you get rust / corrosion build up in the crankshaft spline and the shaft is jammed.------Make up some kind of adapter to clamp on the driveshaft and pull it out with a slide hammer..-----$ 50 is a bargain for that motor.------Compression test must be done before spending any beer tokens.-----It tells me that this motor has not had proper service work done over the years.

 

[racerone]

As motors get older and older there will be more of these stuck driveshafts in my opinion.-----Folks rarely take them in for authorized service like they did 40 / 50 years ago.-----Cost of labor scares most folks.----Electronic ignition means that motors usually start and there is no reason to visit the shop / do any maintenance.

 

[Mctrick]

As motors get older and older there will be more of these stuck driveshafts in my opinion.-----Folks rarely take them in for authorized service like they did 40 / 50 years ago.-----Cost of labor scares most folks.----Electronic ignition means that motors usually start and there is no reason to visit the shop / do any maintenance.

The young man said that he had it running and that's when he noticed that it wasn't pumping water and shut it down in a test tank. I replaced the tiller handle assembly and found that a 1986 Johnson tiller handle worked for a perfect fit. So using a 5lb sledge hammer head as a slide hammer, will work ok?

 

[racerone]

Any discoloring of paint on the cylinder head ?-----I suggest a compression test on any motor that is new to you, if only for future reference..----Avoids you spending money on a dud as is often done.----Seen it many times.----Just because a motor " runs " does not mean it is in good condition !!

 

[Mctrick]

Any discoloring of paint on the cylinder head ?-----I suggest a compression test on any motor that is new to you, if only for future reference..----Avoids you spending money on a dud as is often done.----Seen it many times.----Just because a motor " runs " does not mean it is in good condition !!

I will run a compression test, there is no discoloring at or around the surface of the head.

 

[Mctrick]

Thank you Racerone and Crosbyman for your replying. Much appreciated

 

[Mctrick]

I finally got the shaft out. It was rusted in tight.

 

[Mctrick]

At this point, I'm in for about $85.

 

[Crosbyman]

great news... brush it off grease the splines only and if compression is ok and nothing serious you have a nice motor. do carb and gearcase service if ignition is OK

 

[Mctrick]

I got the shaft out and was trying to assemble back together and was having trouble with the shift lever lining up. As I was pulling the bottom unit off again the impeller woodruff key got destroyed, as it was and is made of a rubber compound. My question is? Can I make one out of brass or lead,wood, of some soft material as to not having to buy a hole new kit? The woodruff key is a half moon shaped with the key way down the center. I could use a hard plastic cutting board material and shape one out of that type of material. Any suggestions?

 

[racerone]

The original stainless pin is available at $2.73 or make one.----Newer drive keys were a plastic material.-----Not sure what lower unit is installed on your motor at this time.----Lower unit off a 1990 might fit.