Home › Forum › Ask A Member › Help with broken bolts › Re: Help with broken bolts

#79369
Bob Wight
Participant

    US Member

    First thing to do is wire brush all that corrosion away from the area where the broken bolt enters the block. This will allow your penetrating fluid to wick down into the bolt threads in the block. And use a quality penetrating fluid, not WD40. On the one long stub you could thread 2 nuts onto the bolt, jam the 2 nuts tight together then use a wrench to turn it loose. As with all broken bolts, this process takes judicious use of the torch, copious amounts of penetrating fluid and liberal amounts of PATIENCE. I once had 2 broken head bolts like yours and I worked on them an hour or so every night with the propane torch and fluid before they finally broke loose. Good luck.

    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."