Fun with trim/tilt units

[Blue Water]

Trim motor went out so I'm doing my first repair on the boat. There is always one bolt to give you trouble. I did several heat and cool cycles and various other things I've tried in the past but this one isn't budging. Taking it to a friend's welding shop on Saturday to use some "real" heat and possibly weld another bolt onto the end of this one. we will succeed.

[Mike453]

Just real ugly bolt! Looks to me to be a drill+tap job. Take your time ,   remember when all else fails!!! :bom: Good luck, wish I could help. Mike

[seabob4]

PB Blaster ain't gonna help that one along!  If all else fails, drill out the center, drill oversized and tap for a heli-coil...

[Blue Water]

PB Blaster ain't gonna help that one along!  If all else fails, drill out the center, drill oversized and tap for a heli-coil...

We tried everything, it would not come out. Heli-coil it is.

[seabob4]

PB Blaster ain't gonna help that one along!  If all else fails, drill out the center, drill oversized and tap for a heli-coil...

We tried everything, it would not come out. Heli-coil it is.

In aerospace, all aluminum frames/chassis/missile skins, etc., we used them by the millions...