Re: Johnson TD20 / TN26 etc. – T-shooting Part 2

[legendre]

Am I correct, in that these motors lack any sort of crank seals?

I mean, there aren’t any rubber / lip seals of any sort, and the motor relies on the fact that it’s a plain-bearing bottom end to effect crankshaft sealing – correct?

I’m used to rubber-lip or labyrinth seals in 2-stroke motors.. but these TD20 seem to have nothing of the sort. Then again, most 2-stroke motors don’t have plain bearing bottom ends – they generally use ball & roller bearings, which do require sealing.