1971 25 hp evinrude help wanted!

[chaser5444]

I took the prop of a 71 25 hp sportster,when iI look at the prop shaft that goes into the bullet It looks like a stainless steel washer,I tried to gentley tap it off,but cant.I looked on line to look at the diagram and it shows a rubber o ring ! I dont understand this. Any help would be cool,Thanks in advance. This is my first question and I hope I displayed it in the right place.

 

[Vic.S]

Re: 1971 25 hp evinrude help wanted!

The O ring sits in a groove around the bearing head to make the seal between it and the gear case. You wont see it just by taking the prop off. I reckon what you think is a washer is in fact the front (back ??) of the bearing head itself.

I guess you looked at the parts diagram online zoom in to maximum and I think you will see what i mean

 

[tashasdaddy]

Re: 1971 25 hp evinrude help wanted!

all that holds that prop on is the cotter key, and the cone (prop nut). the prop should slide off, probably rusted to the shaft.

 

[Vic.S]

Re: 1971 25 hp evinrude help wanted!

all that holds that prop on is the cotter key, and the cone (prop nut). the prop should slide off, probably rusted to the shaft.

He has taken the prop off. He is looking at what is behind it!

 

[tashasdaddy]

Re: 1971 25 hp evinrude help wanted!

mis-read it.

 

[14ftgrumman]

Re: 1971 25 hp evinrude help wanted!

Should be a hole thru the shaft for the drive (shear) pin and behind that is a steel washer that has a small dia on the inside that fits into the gear head assy. The large dia o-ring is the seal for the head assy to the gear case. If you see this you have way too much taken apart.

Would be interested to know what prompted this thread.

 

[F_R]

Re: 1971 25 hp evinrude help wanted!

Should be a hole thru the shaft for the drive (shear) pin and behind that is a steel washer that has a small dia on the inside that fits into the gear head assy. The large dia o-ring is the seal for the head assy to the gear case. If you see this you have way too much taken apart.

Would be interested to know what prompted this thread.

That is correct. The stainless steel washer is part of the gearcase head and bearing assembly, and not a separate part. That is why you cannot "tap it off", as you said you tried to do. If you look closer at the parts list you will notice that the shaft seal is not a separate part either. The gearcase head and bearing assembly includes the seal and that stainless washer.

The purpose of the stainless washer is to keep fish line and trash out of the seal. It also prevents a broken drive pin from eating away at the seal area.

 

[chaser5444]

Re: 1971 25 hp evinrude help wanted!

I thank you guys so much,yeah I should have the manual but dont,you guys are right on with your input.Thanks!!!

 

[chaser5444]

Re: 1971 25 hp evinrude help wanted!

The O ring sits in a groove around the bearing head to make the seal between it and the gear case. You wont see it just by taking the prop off. I reckon what you think is a washer is in fact the front (back ??) of the bearing head itself.

I guess you looked at the parts diagram online zoom in to maximum and I think you will see what i mean

Your100% right,Thanks.

 

[chaser5444]

Re: 1971 25 hp evinrude help wanted!

That is correct. The stainless steel washer is part of the gearcase head and bearing assembly, and not a separate part. That is why you cannot "tap it off", as you said you tried to do. If you look closer at the parts list you will notice that the shaft seal is not a separate part either. The gearcase head and bearing assembly includes the seal and that stainless washer.

The purpose of the stainless washer is to keep fish line and trash out of the seal. It also prevents a broken drive pin from eating away at the seal area.

Thanks 100% right...

 

[chaser5444]

Re: 1971 25 hp evinrude help wanted!

That is correct. The stainless steel washer is part of the gearcase head and bearing assembly, and not a separate part. That is why you cannot "tap it off", as you said you tried to do. If you look closer at the parts list you will notice that the shaft seal is not a separate part either. The gearcase head and bearing assembly includes the seal and that stainless washer.

The purpose of the stainless washer is to keep fish line and trash out of the seal. It also prevents a broken drive pin from eating away at the seal area.

Thanks so much 100% right On!!!

 

[chaser5444]

Re: 1971 25 hp evinrude help wanted!

That is correct. The stainless steel washer is part of the gearcase head and bearing assembly, and not a separate part. That is why you cannot "tap it off", as you said you tried to do. If you look closer at the parts list you will notice that the shaft seal is not a separate part either. The gearcase head and bearing assembly includes the seal and that stainless washer.

The purpose of the stainless washer is to keep fish line and trash out of the seal. It also prevents a broken drive pin from eating away at the seal area.

Thank you very much its real trickey looks like a washer,Your 100% right!!!

 

[chaser5444]

Re: 1971 25 hp evinrude help wanted!

Should be a hole thru the shaft for the drive (shear) pin and behind that is a steel washer that has a small dia on the inside that fits into the gear head assy. The large dia o-ring is the seal for the head assy to the gear case. If you see this you have way too much taken apart.

Would be interested to know what prompted this thread.

Well, when I took the prop off I noticed Stainless steel against the aluminum housing and I thought and it looked like a washer, being a differant metal,I did tap it lightly when it didnt come off I thought to come on your frequency and ask the pros! THANKS!!!

 

[chaser5444]

Re: 1971 25 hp evinrude help wanted!

That is correct. The stainless steel washer is part of the gearcase head and bearing assembly, and not a separate part. That is why you cannot "tap it off", as you said you tried to do. If you look closer at the parts list you will notice that the shaft seal is not a separate part either. The gearcase head and bearing assembly includes the seal and that stainless washer.

The purpose of the stainless washer is to keep fish line and trash out of the seal. It also prevents a broken drive pin from eating away at the seal area.

Right On ! Thanks!!!