Reply To: 1957 Evinrude 25930 Crankshaft seals

[Buccaneer]

Dale wrote:

Buc, If you follow those drilling you will find that they start on the pressure side of the read plate, (crankshaft side). Then go to the lower main bearing. Excess oil/gas mixture is sent up the tube to the top main bearing. That excess ends up on the suction side of the reeds (carburetor side). Quite an interesting engineering concept! Gobbed up sealer will kill the operation of this little pump! Most of the fifties OMC and other motors have something along this line for extra lube for the main bearings.

dale

Dale, I confirmed all the little oil passages were open using WD40 and compressed
air. I also took the little reed pump apart and cleaned up that cavity well.
Tried to find out what the 10th edition manual might say about the little
reed pump, but could not find it.
What’s the official name of it?

Thanks!

Prepare to be boarded!