Re: 1959 10 HP Evinrude Sportwin

[DAN ANDERSON]

I believe the #378330 rod (replacement) that takes the wrist pin bearings & other parts mentioned will go all the way back to the QD-10. I have collected up several sets of this stuff. I have two motors to rebuild. One with broken crank because PO didn’t know how to remove flywheel. $15 motor. Said it ran fine, but needed coils? Upon tear down like FrankR said the piston wrist pin holes were shot!
The nice thing about this repair is I believe it will allow the motor to be run on a leaner fuel/oil mix. Might not go all the way to 50/1, but 32/1 or even 40/1 would clean things up nicely. Not too worried about the center main as later model engines were at 50/1 with that setup. JMHO

Dan in TN