SailNet Community - View Single Post - BOLT head in the Bilge...
View Single Post
Old 02-19-2013
hellosailor's Avatar
hellosailor hellosailor is offline
Senior Member
Join Date: Apr 2006
Posts: 11,236
Thanks: 4
Thanked 122 Times in 119 Posts
Rep Power: 11
hellosailor has a spectacular aura about hellosailor has a spectacular aura about
Re: BOLT head in the Bilge...

Another couple of options: Oddly enough, an old basketball or soccer ball makes a decent air jack. Deflate, stick under the engine, pump up until it starts to lift.

Once you remove that engine mount, and put some PBlaster or other real penetrant on that stud, you may also be able to unscrew it by cutting a slot in it (with a metal saw blade or dremel bit) and then hitting it with an impact hammer and a "screwdriver" tip. If the penetrant has done its job, that will spin right out with the impact hammer. If can still use the screw extractor.

Note the position and alignment of the motor mount carefully, try to match it back up since that affects shaft alignment. In theory, engine mounts should be replaced about every five years as the rubber stiffens up or cracks over time. In practice...that's something else again.

Could be that bolt sheared because it was improperly torqued, so if you have a torque wrench, use it. If you don't, this could be the time to buy one anyhow. And I suppose if you were really compulsive, you mght want to replace both bolts on both front mounts while you're in there. Using Loctite or antiseize on all of them as well.

Or just replace the one and go sailing.
Reply With Quote Share with Facebook