Reply To: Can I apply heat to head bolt? Johnson RDE-17 1955 25 hp

[Bob Wight]

Here’s a couple head bolts I snapped off on my ’58 Johnson where I got in too much of a hurry and laid into the wrench before enough heat was applied. One broke off right under the bolt head and I was able to just double-nut that one, put the torch on it and it backed out after a few minutes. The other one in the background of the photo I took to my neighbor and we built that one up with his welder then welded a nut onto the stub. And as Steve noted, the welding heat alone was enough to back that one right out. Heat is the answer!

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."