Topic

57/59 Johnson crankshaft 23 Oct 2020 19:41 #108267

any good machine shop should be able to repair the keyway and repair the threads if you cant get a replacement
i know i have had a lot of obsolete parts presumed junk repair to good as new and returned to service
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57/59 Johnson crankshaft 22 Oct 2020 00:15 #108213

I will keep researching and see what I can figure out. Also, thanks (OldLure) for the possible lead on a crank. If I don’t come up with an answer, something, local, or other resolution, I may be looking for one. Thanks again.

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57/59 Johnson crankshaft 21 Oct 2020 13:38 #108197

I don't know what the difference might be. I would believe something is different if the part # changed.
If you don't get an answer here try the AOMCI site "Ask a Member" Here is a link -

www.aomci.org/forums/forum/ask-a-member-d1/

I have a couple of partially disassembled '57 powerheads that might have a good crank.
Mike
1950 Skipper on Holsclaw Boat Roadster trailer
1954 Skipper w/ ’54 Johnson 10hp
1954 Deluxe Runabout w/ ’54 Johnson 25hp
1954 Vagabond w/ '57 Johnson 35hp
1955 Alumacraft FD on a Gator trailer
1956 Alumacraft FD
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57/59 Johnson crankshaft 21 Oct 2020 03:29 #108196

I had no idea the crankshaft part numbers changed on the same year between Big Twin and the Lark. I learn something new all the time. Thanks

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57/59 Johnson crankshaft 21 Oct 2020 01:04 #108192

The 1959 Evinrude 35 Big Twin and the 1959 Evinrude 35 Lark have different part numbers also.
John

1958 Vagabond II & 35 HP Evinrude
1955 PlastiCraft 12 Ft. Delux Runabout
1957 Clipper & twin 35 HP Evinrudes
1957 AlumaCraft 14 Ft. FD
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57/59 Johnson crankshaft 20 Oct 2020 23:58 #108191

Hoping someone here knows if the crankshafts used in the 1957 Johnson 35hp and 1959 Evinrude 35 are interchangeable? The reason for asking is that, I just bought a 57 Johnson Javelin that has a bad keyway in the crankshaft and bad threads as well. I have a 1959 that I assume has a good crank but, I have not disassembled to verify. Wanting to know if they are the same before taking it apart. I do not have a lot of part number information but what I have found shows different part numbers for each crank. Not sure if they are physically different or just a part number change. Thanks in advance for any help.

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