[Smith9y3]

So the other day. I realized I had an oil leak on the bottom of the motor case on my griz. I cleaned it off and it appeared to be one of the case bolts leaking. I went to tight it and it felt loose. Well needless to say the bolt broke inside the case. It?s an M6 bolt it?s probably 1-2 inches long about 1/4 of the bolt is left inside the case. My question is. Does anyone have an idea on getting this thing out without breaking the case open. The problem is that without this bolt oil just continues to drip out. So I have to fix it

 

[Tigman186]

IMO, I'd start drilling the center with a left hand drill bit the same size as the nominal bit for that thread. this way, if the bit catches the bolt and your lucky, it'll just back out on it's own. if it doesn't, you're already drilling to the correct size to re tap it. That's just what I'd do. others may have better ideas.

 

[wernerwilliam]

tuff one being bolt is so small. If you could see end of bolt you might be able to center punch bolt. try the left hand drill bit. would need an awful small easy out to remove bolt. Hopfully bolt snapped due to fatigue and hopefully not bottomed out in case. might come easy, might not


Good luck

 

[RHINO2017]

Broke Bolt

Maybe you could;
Screw a long threaded bolt with a nut and sealing washer on it into the hole until it bottoms on the broke piece which will secure it. Tighten the nut just enough to seal your leak then saw or grind it off.
The left hand drill bit is good thinking also.
Good Luck

 

[Smith9y3]

im gonna try left handed drill bit i guess. its such a small bolt. thanks guys

 

[Smith9y3]

Maybe you could;
Screw a long threaded bolt with a nut and sealing washer on it into the hole until it bottoms on the broke piece which will secure it. Tighten the nut just enough to seal your leak then saw or grind it off.
The left hand drill bit is good thinking also.
Good Luck

good thought except it broke right at the start of the threads haha. i said to myself if i could weld aluminum, it just fill the hole in haha thanks though

 

[Smith9y3]

Looks like I?ll be pulling it apart. I broke an easy out in it... so machine shop bound

 

[RHINO2017]

Maybe you could clean it with a good degreaser like brakekleen, then sand it with 36 or 40 grit, then slap some JB weld on it. It's some really good stuff!
If you want it thick just mix it on a small piece of cardboard, put duct tape on the backside of the cardboard mix er up then stick it on there, the elements will remove the cardboard later. Be sure to give it plenty of cure time.
When you want to do a repair later just grind it off.
Good luck