Im In The Brown Smelly Stuff

Send pic of the current situation that may help.

 

Are you saying you can't get the bolts out? Try heat and /or can you get plusgas to penetrate the threads. Try tapping the head of bolts with a hammer to loosen. If they are Allen heads try knocking a slightly larger torx bit into the hole and try tightening a fraction first, then a quick snap with an extension bar.
I wouldn't use 2nd hand bolts, you may end up with the same issue. Why not try a fastenings supplier, ( I always buy from a local one) it could be cheaper and a better bet or even new oe parts if you're feeling flush. Put copper grease on the new bolt threads first.
I agree a pic would help.

 

Are you talking about the bolts which hold the calliper to the bike or the retaining pin for the pads? Either are probably special bolts not readily available from a bolt stockist.

Pleas send a picture and I'm sure when the issue is clear someone will be able to provide helpful advice

 

Hi,

Go onto Youtube and search out 'Delboys Garage' he did a whole tutotial on removing bolts that had rounded over, snapped, sheared etc. Worth a watch.

Rusty

 

If its the long retaining screw holding the pads, then try bolt extractors ( £3.50 from Screwfix). You drill a pilot hole and simply screw the extractor, which has a tapered left hand thread, in to the drilled hole and the bolt will come out. If its a bolt head you can get a set of mole grips on (worth a try) you can also get external bold head extractors (more expensive). Also as SprintDave said, don't use second hand bolts, its false economy and wont cost a fortune. Good luck mate.

 

If these bolts are cap head (Allen) bolts put some coarse valve grinding paste in the hex socket before inserting the hex key or bit.

 

I keep a set of screw extractors in my machinist's chest for times like that. The set I bought comes with matching lefthand drills. Sometimes just the torque of the drill going in in reverse rotation will loosen the screw. If that does not do the trick, you use the matching screw extractor by hand. Very carefully though. Those extractors are very brittle. ...J.D.