Reply To: Fixing buggered crank threads

[Bob Wight]

I had the same issue on my ’72 25hp. I also did exactly what Tubs described – carefully filed the first couple of threads just to get the die engaged. The die was then able to get started straight and cleaned it all up. However, I did not have the same success on a ’57 18hp with bad threads. That crank was pretty much junk otherwise so I just found a good quality used crank – you may have to do the same.

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."