Reply To: Johnson TN28 Carbon Seal Upgrade

[Buccaneer]

DAN UMBARGER wrote:

I like the looks of that top plate and gasket…with your keen lathe skills can’t you make a plate that would fit inside the lower crank case and fabricate a gasket to seal the plate to the crank case…looks like the last photo shows a plate with a shallow lip that could fit into the bottom of the crank case. That plate/gasket/seal and spring would stay stationary  and the driveshaft would spin inside the carbon seal/oring. That’s what my peabrain sees anyhoo…lol.

I can make the stepped retainer like the upgrade bulletin shows,
I just don’t know if it should be free floating in the housing,
or a press fit down in the housing bore a ways so the crankshaft
end doesn’t rub on it.

 

 

Prepare to be boarded!