SNAPPED a head bolt :-(

[Danard]

Re: SNAPPED a head bolt :-(

I may be late on this ,but I have worked on my own old Johnson motors since the late 60s If the head bolt broke of close to the top I can tell you now it is correded in there good and tight. I would leave it alone and run the motor as it is. The head is still toqued down from when it was installed. You are just going to open a bag of worms trying to get it out. I know I will get a lot of feed back from this suggestion.Been there done this.

 

[Franki]

Re: SNAPPED a head bolt :-(

it wasn't a head bolt, its a water cover bolt.<br /><br />I have drilled it almost all the way out, the first 3/4 inch is clear, and the thread is good.. <br /><br />I used a cheap drill bit and when it got to the end, it shattered and left a piece of itself stuck in the end, I am going to see if runnin the engine doesn't shake it loose, if I can get that out, then Its fixed..<br /><br />(I drilled progressively bigger hole down the center of the bolt shaft till I could collapse what was left with a small flathead screwdriver.. then I pulled it out... worked great, but the drill bit piece proved harder as its wedged in tight right up the back..<br /><br />maybe the heat and vibration of running the motor will loosen things up..<br /><br />rgds<br /><br />Frank