Ducati Sporting Club UK > Model Specific - Discussion, Technical Problems and Help > General Motorcycles only > Rounded Hex Bolts

[khu996]

What are the different techniques I can use to remove a rounded hex headed bolt (made of something not dissimilar to swiss cheese)?

[domski]

I always find it helps if you headbutt a wall several times whilst screaming expletives at the top of your voice... usually followed by sulking and getting someone else to fix it

No help I'm afraid, but you have my sympathy

[khu996]

Originally posted by domskidue
I always find it helps if you headbutt a wall several times whilst screaming expletives at the top of your voice... usually followed by sulking and getting someone else to fix it

No help I'm afraid, but you have my sympathy

Already gone through the self-harming and profanity stage, am now in the process of trying to be clever and make an even more serious mess, before I finally resign to taking it to someone who isn't a numpty!

[domski]

Do you have good access to it?

If you could cut a small groove in the outer edge, you may be able to tap it with a screwdriver/chisel and (small) hammer to get it turning.

Dunno if that makes sense.

I've managed also to get a screwdriver (another bodge) that is like half a millimetre too big for the hex head... tap it in so it's snug and then try turning that... even better if you have a screwdriver with a spanner attachment thingy-me-bob

I'll try to think up a 3rd bodge, should all else fail.

[khu996]

Believe it or not, its the middle bolt on the top yoke of my 749 so access isn't great.

I'm thinking of drilling a small hole in it, and tapping a smaller hex socket into it?

[monstermob 998]

try tapping a torx drive into the head of the bolt -it'll have to be a tight fit and then with luck the tapping and the grip of the driver when turned will loosen it----its worked for me in the past

[khu996]

Originally posted by monstermob 998
try tapping a torx drive into the head of the bolt -it'll have to be a tight fit and then with luck the tapping and the grip of the driver when turned will loosen it----its worked for me in the past

Cool. I'll try that. Its this bolt:



What is the correct torque value for it?





[Edited on 11-6-2005 by khu996]

[domski]

Ooooooh, that doesn't look like a nice one to round off, you poor sod!

[monstermob 998]

sorry mate cant help you out with that one(the torque)--not familiar with 749--

[swannymere]

Poor bugger,For a 749,23Nm (+-10%) For the steering head screw according to my workshop manual



[Edited on 11-6-2005 by swannymere]