Snapped subframe bolts

[gasman15]

When removing the gearbox from my 172, some of the bolts have snapped.

Due to the position it is impossible to get access to the bottom of the bolt, any one any ideas as to how they can be removed?

thanks

matt

 

[Dan@SJM]

Bolts snapped or the captive nut is spinning?

 

[gasman15]

Head of the bolts have snapped when using a breaker bar :-(

 

[Jaff.]

Un-f**king-lucky!

probably have to drill it out and get an easy out on it or drill and tap it

 

[gasman15]

Silly question what's an easy out?!

 

[gasman15]

Im on it! ;-)

 

[Jaff.]

If they're too tight I doubt you'd get much luck with an easy out but it's worth a go before tapping it

 

[Carbonraider]

Wouldn't it be easier removing all bolts, drop the subframe and remove captive nuts with remaining bolt still in place.

I would of thought the captive nuts would give way before the bolt to be honest.

 

[Dan@SJM]

100% the captive nuts would've spun. Unless the OP is talking about the 13mm ones.

 

[Jaff.]

I'd drop the subframe anyway purely for access reasons tbh.

Know a welder? Weld a nut onto the broken bolt and try again?

 

[bloke]

Silly question what's an easy out?!

something you should never use...http://www.screwfix.com/p/screw-extractor-5-piece-set/18643 when they snap in the bolt you're trying to remove they are a pain to get out.

 

[Matt e]

something you should never use...http://www.screwfix.com/p/screw-extractor-5-piece-set/18643 when they snap in the bolt you're trying to remove they are a pain to get out.

and they nearly always snap, there made of cheese