tootallofwa
Petty Officer 2nd Class
- Joined
- Feb 20, 2010
- Messages
- 177
Yeah! It worked!!!
The 40352d (63' 40hp Evinrude Big twin) with a bad piston became a parts motor for my RXL10C (62' 28hp Johnson Long shaft.)
The part no for the shift rod was the same for both short versions of each but the drive shafts had different numbers.
I had hoped I could just swap lower units... No way... Totally different foot print, impeller housings wouldn't swap... CR@P!!!
Drive shafts looked the same except the big twin had an impeller key and the 28hp has a pin.
Oh! that's because the impellers are different thicknesses.
What I did was file the top of the key so It was flush with the top of the smaller impeller and flush with the drive shaft so it would clear the impeller housing.
OK, I didn't consider the impeller seal till after I put it back together. Nor did I replace any seals. I think the seal sets well above the key way.
I had a hell of a time getting the drive shaft out of the big twin. To get it out I had to take out the pinion gear and of course the roller bearings fell out. Had to drive it out from the bottom with a wooden hammer handle. Munched the hammer and some piece of a seals spring that had wedged it in, fell out. Well that gear housing needs new stuff if it ever goes back in service.
I put it back together without the extension parts, put new lube in and it seems fine.
It was my first time inside a gear housing and it took me a couple tries to get the shift dog just right. What a mess, gear lube is sticky and stinky.
It took me all afternoon to do the swap, spilled and mopped up a pint of goo but it worked!!!
The 40352d (63' 40hp Evinrude Big twin) with a bad piston became a parts motor for my RXL10C (62' 28hp Johnson Long shaft.)
The part no for the shift rod was the same for both short versions of each but the drive shafts had different numbers.
I had hoped I could just swap lower units... No way... Totally different foot print, impeller housings wouldn't swap... CR@P!!!
Drive shafts looked the same except the big twin had an impeller key and the 28hp has a pin.
Oh! that's because the impellers are different thicknesses.
What I did was file the top of the key so It was flush with the top of the smaller impeller and flush with the drive shaft so it would clear the impeller housing.
OK, I didn't consider the impeller seal till after I put it back together. Nor did I replace any seals. I think the seal sets well above the key way.
I had a hell of a time getting the drive shaft out of the big twin. To get it out I had to take out the pinion gear and of course the roller bearings fell out. Had to drive it out from the bottom with a wooden hammer handle. Munched the hammer and some piece of a seals spring that had wedged it in, fell out. Well that gear housing needs new stuff if it ever goes back in service.
I put it back together without the extension parts, put new lube in and it seems fine.
It was my first time inside a gear housing and it took me a couple tries to get the shift dog just right. What a mess, gear lube is sticky and stinky.
It took me all afternoon to do the swap, spilled and mopped up a pint of goo but it worked!!!