Reply To: 1956 Johnson 30hp Rebuild

[Bob Wight]

Fleetwin – appreciate the response. Can’t say whether or not it had been opened up before I got it. This is the bad powerhead I reported on a couple years ago – I picked the motor up from some guy who left it laying on the ground out in the weather for about 20 years and it was rusted up solid. The basic block/crankcase and one piston are good, the rest will all be replaced as part of this rebuild.

After posting my inquiry above, I did verify in the Johnson service manual that this was a powerhead with a later revision that added an oil recirc hole in the groove and deleted the O-ring on the upper bearing. I cleaned out the oil passage to ensure a clear return, and it will get reassembled without the O-ring. Don’t know whether the O-ring I found was just a factory oversight or if someone else had been in there before me and didn’t know.

If anybody can help with my con rod question, it would be appreciated. I have a chance to pick up 2 of the later rods (and NOS) at a good price.

Bob

1937 Champion D2C Deluxe Lite Twin
1954 Johnson CD-11
1955 Johnson QD-16
1957 Evinrude Fastwin 18
1957 Evinrude 3022
1958 Johnson QD-19
1958 Johnson FD-12
1959 Johnson QD-20
1982 Evinrude 25hp

“Every 20 minute job is only a broken bolt away from a 3-day project.”
"Every time you remove a broken or seized bolt an angel gets his wings."