6 hp evinrude pinion

[byronjacobson]

I've been struggling with getting the lower gear unit of a 1969 evinrude 6 hp to work. I ended up removing the old gears and pinion because they were pretty well chewed up. I put some new gears and pinion in that i took out of a 1953 5.5 hp johnson that i had for parts. My problem is that the driveshaft has a vertical up and down play of about a 1/4 inch or more. The cradle and dog end up rubbing against the pinion gear when I try to shift the gears between forward and reverse. How do I stop the driveshaft from moving down 1/4 inch so the pinion doesn't rub against the shift dog or whatever it is called.
I've had this apart about 3 or 4 times and it is really frustrating me. The motor otherwise runs fine. Would appreciate any ideas you can give me to help, or you can email me at jake331@charter.net

 

[kodibass]

Re: 6 hp evinrude pinion

It's been a while but I think there is a roll pin just under the power head that is there to prevent the drive shaft from dropping, it goes horizontally through the drive shaft. go to marineengine.com and look up your model it will show it. good luck

 

[byronjacobson]

Re: 6 hp evinrude pinion

roll pin is there. today i took the shaft out and notice right above where the pinion gear is, there is small cut out ring on the driveshaft. I was wondering if there should be a c clip or something there to keep the driveshaft from slipping down. one marine guy told me that the key in the water pump was the only thing holding the shaft from dropping down. Seems to me there should be something more than that to hold the shaft in place.

 

[Daviet]

Re: 6 hp evinrude pinion

Are you sure the parts out of a 1953 will interchange with the pats out of a 1969 lower unit. The parts I looked at shows different part numbers for the two pinion gears.

 

[byronjacobson]

Re: 6 hp evinrude pinion

I switched out the pinion gear along with the other two forward adn reverse gears and put them on the original 69 shaft. the diameters and heights seem to match up pretty well. took everything apart this evening and put it back together. still not working right and I'm getting frustrated. Maybe some of you know where I can get a good used lower unit to put on my 69 6hp evinrude. if you do email me at jake331@charter.net

 

[Daviet]

Re: 6 hp evinrude pinion

You might check with some of the salvage yards listed in the "Top Secret File" at the top of the page.