LM2 rear brake travel |
Post Reply | Page <12 |
Author | ||
Ianboydsnr
Senior Member Joined: 14 May 2014 Location: Cumbria Status: Offline Points: 831 |
Post Options
Thanks(0)
|
|
I don't intend to do anything, until such a time as is necessary, it works fine at the moment, then I will drill a hole in it, then hammer in a splined socket, using heat around the area, and hopefully undo, if that fails, I will mill it out, possibly to M7, and tap it to take a bleed screw!
|
||
Lemon 2
Senior Member Joined: 19 Oct 2014 Location: South Wales Status: Offline Points: 274 |
Post Options
Thanks(0)
|
|
Soz fella, teaching an old dog to do new tricks and that .
|
||
Dazed and Confused
Le Mans Mk2 |
||
Ianboydsnr
Senior Member Joined: 14 May 2014 Location: Cumbria Status: Offline Points: 831 |
Post Options
Thanks(0)
|
|
No need to be sorry fella, posts are seen by old dogs and new dogs alike, it all contributes to the knowledge held by the forum!
|
||
Tim Stanbridge
Falcone Joined: 12 Jan 2015 Location: Beyond the Sun Status: Offline Points: 36 |
Post Options
Thanks(0)
|
|
Hi, I'm back. Have only just returned to this problem after a heavy two months' workload
'Have renewed the M/cyl seals, etc today with an overhaul kit from Gutsibits and I am, as I write with one hand on the iPhone, fruitlessly bleeding the system without much success. BUT.....have not tried the reverse caliper-to-M/cyl method yet. Also, has anyone tried the vacuum-sucking-from-the-caliper-bleed-nipple with one of those kits? I got one for the Hillman Imp a few years ago but I eventually gave up using it in favour of the 8 year old son on the brake pedal-me on the spanner combo.
|
||
Pigford
Senior Member Joined: 12 Feb 2015 Location: Dorset UK Status: Offline Points: 245 |
Post Options
Thanks(0)
|
|
Broken bleed nipples are a common issue - just had fun with the rear caliper on my LM2 I had to replace the bit of steel pipe as it split at the caliper union - so used some Goodrich braided hose.
Tried drilling the nipple out as it was fused into place! On the pillar drill okay, but the dodgy bit is cleaning out the last bit at the bottom, where it seats! Gave up in the end & loctited a short s/s M6 bolt in it to ensure it wouldn't leak. Carefully bled it with caliper high as possible and it seems okay - or at least as good as it was before. Edited by Pigford - 19 Apr 2015 at 10:07 |
||
Old & Bold
|
||
Tim Stanbridge
Falcone Joined: 12 Jan 2015 Location: Beyond the Sun Status: Offline Points: 36 |
Post Options
Thanks(0)
|
|
LATEST NEWS!!
Bled the system yesterday with the vacuum pump method - drawing the fluid through the system from the F/L bleed nipple, then the rear bleed nipple (fitted an integrated banjo/bleed nipple from Gutsibits). Got a firmish pedal.....which was nice...... then tried the old bunge-cord-holding-the-brake-pedal-down-overnight-trick . Result - unbelievably hard pedal!! But......still quite a lot of travel. Still it's a heap better than before and it now has an MoT!
|
||
Mike H
Senior Member Joined: 21 May 2014 Location: East Anglia Status: Offline Points: 8733 |
Post Options
Thanks(0)
|
|
What's this business with the double banjos on the back of the M/C?
|
||
"Chicken nuggets don't dance on a Tuesday."
|
||
Jerry atric
Senior Member Joined: 24 Nov 2014 Location: Wiltshire Status: Offline Points: 3367 |
Post Options
Thanks(0)
|
|
More to the point, what's the trick with the bungee? Never heard of it, does it just slowly release tiny bubbles in the fluid? Serious question.
|
||
Pigford
Senior Member Joined: 12 Feb 2015 Location: Dorset UK Status: Offline Points: 245 |
Post Options
Thanks(0)
|
|
It holds the passageways open so any air can find its way out |
||
Old & Bold
|
||
Mike H
Senior Member Joined: 21 May 2014 Location: East Anglia Status: Offline Points: 8733 |
Post Options
Thanks(0)
|
|
I would have thought the exact opposite. With the piston permanently depressed, channel(s) to the reservoir are closed off.
|
||
"Chicken nuggets don't dance on a Tuesday."
|
||
Mike H
Senior Member Joined: 21 May 2014 Location: East Anglia Status: Offline Points: 8733 |
Post Options
Thanks(0)
|
|
Have you by any chance fitted new brake pads or have otherwise disturbed the caliper pistons? Excessive pedal/lever travel can often be attributed to pads needing to bed in and caliper pistons settle. (I have experienced this with cars too.) After some use, this happens and the 'feel' at the pedal or lever hardens up noticebly and the travel shortens. HTH |
||
"Chicken nuggets don't dance on a Tuesday."
|
||
Tim Stanbridge
Falcone Joined: 12 Jan 2015 Location: Beyond the Sun Status: Offline Points: 36 |
Post Options
Thanks(0)
|
|
Well, I got this tip (the bungee chord trick) from somewhere on this forum and it has worked. If it has challenged physics law, I'm not too bothered either way. - I've got my MoT ;) Anyway........how did we get here? 1. took bike for Mot in February - failed on a spongy rear pedal 2. tried bleeding the brakes conventionally - no better, in fact a lot worse. 3. bought a new Brembo overhaul kit - still no better 4. used a vacuum pump to draw brake fluid through the system from the M/C - good pedal. 5. bungee chord trick for a week = rock hard pedal 6. MoT pass - TT 1st week here we come! |
||
Ken-Guzzibear
Moderator Group Joined: 13 May 2014 Location: Sileby Leics Status: Offline Points: 9454 |
Post Options
Thanks(0)
|
|
reverse fill has always worked I learned this yrs ago got help from a Guzzi mechanic he told me the old Brembo calipers often get air trapped behind them ... takes under 1 min each brake caliper The ONLY time this did not work the mast cyl was knackered it was a new one
|
||
The Older i Get, The Better I Was
|
||
Post Reply | Page <12 |
Tweet
|
Forum Jump | Forum Permissions You cannot post new topics in this forum You cannot reply to topics in this forum You cannot delete your posts in this forum You cannot edit your posts in this forum You cannot create polls in this forum You cannot vote in polls in this forum |