New Member RD400C

[Stankflapper]

Blue, pop that exhaust off and try tapping the broken bit of the stud with a fine pin punch in the anti-clockwise direction to undo it, you may surprise yourself with the stud coming out quite easily, while the barrels are still on the bike. It got to be better than riding around with an exhaust leak.

[BRG1200]

Have a look on youtube for "Delboys Garage" tutorials, he has a detailed technique one for what Mr Flapper describes.

[Blue]

Thanks guys. I'll get the f****r out. It's the one that's not impeded by the frame so can get in there.

[L.B.]

That or buy some left handed twist drill bits.Did this very recently with success.

[hybrid]

Stud removal tools work quite well.

[fred99999au]

Or quick bits of weld onto the end of the broken stud(not the surrounding alloy) building it up until you can get the footprints (or similar) onto it. The heating and cooling helps too.

[OzzyElsie]

That or buy some left handed twist drill bits.Did this very recently with success.

This is my fav method .

Start smallish and work your way up. Start with a flat centre and centre punch the centre to start straight. Between the vibration, the heat and the reverse torque which is only exaggerated by the occasional catching, it will grab and spin out.

Sometime it might take several goes and work your way up but the worst case is you can use the drill hole to use an insert.

If you drill straight and centre, I have drilled the stuck screw so close I only had to ply out the remaining thread.

[hybrid]

Stud removal tools work quite well.

"Easyout" - that's what I meant by stud removal tool.

[Stankflapper]

That or buy some left handed twist drill bits.Did this very recently with success.

This is my fav method .

Start smallish and work your way up. Start with a flat centre and centre punch the centre to start straight. Between the vibration, the heat and the reverse torque which is only exaggerated by the occasional catching, it will grab and spin out.

Sometime it might take several goes and work your way up but the worst case is you can use the drill hole to use an insert.

If you drill straight and centre, I have drilled the stuck screw so close I only had to ply out the remaining thread.

Most exhaust studs are not in super tight anyway and I am sure they would come out quite easily.

[Blue]

Thanks all. Attacking tonight.

[OzzyElsie]

Stud removal tools work quite well.

"Easyout" - that's what I meant by stud removal tool.

My advice is NEVER use an easeout . I have never known anyone to have success with them and if the snap off you are in deep poo poo. They snap off jagged and are harden steel - you'll never drill them out.

My two cents worth .

[hybrid]

I've used them with success plenty of times.
You have to buy good ones, not elcheapo and know when to give up.

If you snap it, then you have to get them spark eroded along with the stud.

[Blue]

No dice turning the stud with a punch. On taking the flange off, noticed the stud snapped off around 2mm inside the hole. Had a quick go but couldn't angle the punch very much without damaging the mating surface and thread. Pulled the pin before I knackered it. [attached]

Probably try with the left handed bits tomorrow or... seeing as you're all experts, I'm happy to pay $$$ for someone to get it out...? Can't hurt to ask...



Blue

[BRG1200]

Hmmm. I'd scrap it if I were you. I'll give you fifty bucks for it.

[Blue]

Thanks BRG, I was waiting for that hahaha.