Gearbox removal

[SteSE]

Unfortunately, whilst removing the gearbox from my m20b25, i've rounded one of the hex bolts off, the one below the last start motor mount.

I'm thinking the only option is to drill the bolt out but wanted to ask in case anyone could offer any advice or other ideas. The engine and transmission are out of the car for what its worth.

All the other bolts are out fine just this last one

Thanks

[Topblag]

Irwin stud removers before you get the drill out. Also try 6 point sockets and a big breaker bar.

[SteSE]

Cheers, Irwins look a good shout!

[e30_ev0]

just cut the head head of the bolt and remove the box then remove the stud with molegrips or stud extractor,

thanks

[town325i]

just cut the head head of the bolt and remove the box then remove the stud with molegrips or stud extractor,

thanks

Thats a good way of doing it but it depends where the bolt is if its at the top your going to have trouble getting access to it.

Whats this irwin tool any likes for one please

[SteSE]

Looks to me like a undersized socket you hammer on for a 2nd chance at getting the bugger off.

I've got access to drill / cut the head of the bolt off but wanted to ask first. I'll try this irwin trickery - hopefully next weekend - and report back.

[town325i]

They look like a good bit of kit might have to invest in some of them

[paul1985]

the irwins are fantastic i've only ever had them not work once trying to remove an exhaust stud it sheared first but there fantastic 99.9% of the time

[SteSE]

They work