Author Topic: Brake Disc Bolts (Read 10570 times)

old son · « **on:** 17 January 2014, 07:06:52 pm »

Would it be OK to reuse front and rear disc bolts when I fit my new discs?
Thanks

Mattsplat · « **Reply #1 on:** 17 January 2014, 07:25:24 pm »

Of course, unless they are damaged!

unfazed · « **Reply #2 on:** 17 January 2014, 07:30:11 pm »

I did

tom · « **Reply #3 on:** 17 January 2014, 07:48:49 pm »

I have on a couple off bikes and had no problems with them

PaulSmith · « **Reply #4 on:** 20 January 2014, 11:31:21 am »

If your bike is your main transport and you can't afford to risk it being off the road then it would be worth investing in at least one set of replacement bolts. If everyting goes fine, you wont need them but if you do have a problem, it wont keep the bike off the road while you wait for them to arrive.

old son · « **Reply #5 on:** 21 January 2014, 07:45:04 am »

I'm fitting a rear disc. If I buy a set of bolts then I'll use the new ones. I heard somewhere that these bolts tended to stretch?? I'll remove them carefully and put some locktite on them before they go back. Thanks for your comments.

The Male Whale · « **Reply #6 on:** 21 January 2014, 08:28:01 am »

Use a properly fitting impact driver to remove them.

They WILL be seized and they WILL round if you don't.

Whale

Falcon 269 · « **Reply #7 on:** 21 January 2014, 02:49:42 pm »

... and heat to soften the original threadlock compound.

I wouldn't even try to remove them without an impact driver, mate.

old son · « **Reply #8 on:** 21 January 2014, 06:59:27 pm »

So my idea of a long bar with a snap on 6mm Allen socket is just a pipe dream?? Buggar!!!!

unfazed · « **Reply #9 on:** 21 January 2014, 07:29:13 pm »

Quote from: old son on 21 January 2014, 06:59:27 pm

So my idea of a long bar with a snap on 6mm Allen socket is just a pipe dream?? Buggar!!!!

Yes, but it is a great way of mangling all the bolts

PaulSmith · « **Reply #10 on:** 22 January 2014, 10:51:20 am »

Quote from: unfazed on 21 January 2014, 07:29:13 pm

Quote from: old son on 21 January 2014, 06:59:27 pm
So my idea of a long bar with a snap on 6mm Allen socket is just a pipe dream?? Buggar!!!!
Yes, but it is a great way of mangling all the bolts

No, the first five will be fine. Only the last bolt will be mangled, and it wont even be mangled as such, just smoothly rounded.

unfazed · « **Reply #11 on:** 22 January 2014, 11:08:27 pm »

Quote from: PaulSmith on 22 January 2014, 10:51:20 am

Quote from: unfazed on 21 January 2014, 07:29:13 pm
Quote from: old son on 21 January 2014, 06:59:27 pm
So my idea of a long bar with a snap on 6mm Allen socket is just a pipe dream?? Buggar!!!!
Yes, but it is a great way of mangling all the bolts
No, the first five will be fine. Only the last bolt will be mangled, and it wont even be mangled as such, just smoothly rounded.

old son · « **Reply #12 on:** 23 January 2014, 08:12:05 am »

I was thinking of changing both front discs too!! I will try the rear this weekend, if the bolts get buggered I can still use the bike (but not the rear brake)lol

PaulSmith · « **Reply #13 on:** 23 January 2014, 10:36:28 am »

Quote from: old son on 23 January 2014, 08:12:05 am

I was thinking of changing both front discs too!! I will try the rear this weekend, if the bolts get buggered I can still use the bike (but not the rear brake)lol

Just break the lock on each bolt before moving on to the next. Do not attempt to loosen or remove any bolt until all of them have been released, then if one gets focced up, you can just retighten the others and cary on riding until you have sourced replacement bolts.

bigbluebear · « **Reply #14 on:** 23 January 2014, 11:44:17 am »

Aye, I should know as I sheared one of my replacements bolts a few weeks back......still not fixed it......but wouldn't dare do what you suggest is to ride with a focced up bolt

unfazed · « **Reply #15 on:** 23 January 2014, 06:04:22 pm »

Quote from: bigbluebear on 23 January 2014, 11:44:17 am

Aye, I should know as I sheared one of my replacements bolts a few weeks back......still not fixed it......but wouldn't dare do what you suggest is to ride with a focced up bolt

Mark it dead center with a punch. Drill it using a left hand drill bit and a variable speed drill, start slowly and do not use the full revs of the drill, to fast and your likely to break the bit.
The heat from the drilling will soften the loctite and as you are drilling it will also slowly unscrew the bolt. I would start with about a 4mm bit

bigbluebear · « **Reply #16 on:** 23 January 2014, 06:09:59 pm »

I'm too scared I do more damage, I have my bike mechanic coming round in the next day or so and he can use his silky skills to remove it....besides it may cost me more if I foc it up.

unfazed · « **Reply #17 on:** 23 January 2014, 06:56:24 pm »

Understandable, but should be no problem to a good machanic.
Many are not aware of left hand drill bits, which the the job much easier.

old son · « **Reply #18 on:** 25 January 2014, 05:54:34 pm »

Today has been a good day, rear disc and pads changed plus both front discs and pads changed. Used heat gun then impact driver then long bar. Every bolt undid as it should!

Falcon 269 · « **Reply #19 on:** 26 January 2014, 06:12:24 am »

Result! Well done, mate.

old son · « **Reply #20 on:** 27 January 2014, 08:13:06 pm »

Today is maybe not to good. I fitted a Brembo disc to the rear and that is OK.

I fitted Armstrong Wavy discs to the front and they seem to have issues. They are OK with light pressure but as you apply pressure it seems as though the pads and being thrown around the callipers. There is a bit of a rattle and then almost a graunching noise as I apply more pressure. I can also hear a sort of whining from the discs and this noise gets louder as I apply more pressure.

It could be they need time to bed in. If that is not the cause then does anybody have any ideas what the issue might be?

unfazed · « **Reply #21 on:** 27 January 2014, 08:47:51 pm »

If only Brembo made front discs for the Fazer

May just be the bedding in process. My front EBC discs made some weird noises for the first 100 miles, still make weird noises, but not as bad as the first 100 miles.
The rear Brembo is as good if not better than the original and no weird noises

Did you fit the discs yourself and was the wheel surface where the disc is attached cleand off because if it was not the discs may not be on straight.

old son · « **Reply #22 on:** 27 January 2014, 09:49:11 pm »

I did clean the surface where the disc is attached but I think I will try spinning the wheel against a fixed point to see if there is any run out. I doubt if there is because it would vibrate all of the time, not just under hard braking.

The Male Whale · « **Reply #23 on:** 28 January 2014, 03:52:23 pm »

What pads did you use?

Whale

old son · « **Reply #24 on:** 29 January 2014, 07:53:56 am »

EBC HH