Forgot to mention on my ’72 Evinrude that one of the bolts was so eaten up from salt water there as no way I was going to be able to back it out. So I just hack-sawed off the exposed portion of the bolt that was messed up, then did the heating and penetrating fluid treatment. Worked real good when I drilled the access holes through the bracket to get penetrant to the inner portion of the bolt threads. This one that I sawed off had the bracket threads messed up a little bit so I just ran a tap through it to clean it up.
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."