Member Since: 12 Mar 2015
Location: Aberdeenshire
Posts: 153
Struggling to get rear disc back on..
Hi folks
I’ve replaced the shoes for the epb and the springs etc, the adjuster is fully closed (its free to move) everything seems correctly fitted again, but....
For the life of me a cant seem to get the new disc back on? It seems the shoes aren’t ‘closed’ enough to get the disc back on... I’m losing patience and can’t see what ive done wrong...
I’ve followed body’s bible... there must be something not quite right...
Any tips/help?
ThanksD3 with lots of d4 extras!
27th Mar 2020 7:12 pm
PROFSR G
Member Since: 06 Mar 2017
Location: Lost
Posts: 4655
The shoe expander is likely to be in the wrong place and will need correcting. Its easily maladjusted!yµ (idµ - eAµ) ψ=mψ
27th Mar 2020 7:36 pm
Bardley
Member Since: 02 May 2018
Location: Hertfordshire
Posts: 441
As above, check the Allen bolt adjuster is fully retracted. They have a habit of expanding when you fit the shoes as they get knocked.
The shoes may need sone persuasion to get back in alignment to be within the radius of the drum as it goes over them. It'll be tight anyway, as you've got new and full width friction material.
Keep at it!2011 MY D4 HSE
Previously 2001 D2 TD5, 1996 D1 300Tdi, 1985 90 2.2 petrol.
Bikes! KTM, BMW, British, Classics and others.
27th Mar 2020 8:10 pm
Gmcc
Member Since: 12 Mar 2015
Location: Aberdeenshire
Posts: 153
OKay, this Allen bolt.... i had a wee play with it whilst the shoe was still off, and I could see how there was some adjustment to where it sat...and therefore allowing the plate between the shoes to be more snug..
So to get this better I’m assuming it has to be shoes off again? As when you slacken it, this allows the shoes to expand... and the tightening doesn’t help.
I’ll have a look/play with the old shoe Allen and see what i can do to make it better..
There is definitely gaps at the opposite side to the adjuster... where the shoes sit near the block piece attached to the dust shield. I thought they’d be flush to this, but i cant seem to get them flush. Perhaps this is because of the Allen bolt mechanism... i thought maybe it was the handbrake cable not sitting correctly but this looks to be fine....
D3 with lots of d4 extras!
27th Mar 2020 8:18 pm
Gmcc
Member Since: 12 Mar 2015
Location: Aberdeenshire
Posts: 153
PROFSR G wrote:
The shoe expander is likely to be in the wrong place and will need correcting. Its easily maladjusted!
I take it you mean the Allen adjuster, not the ratchet bit that you click round to set?D3 with lots of d4 extras!
27th Mar 2020 8:20 pm
Gareth Site Moderator
Member Since: 07 Dec 2004
Location: Bramhall
Posts: 26701
Have you got the actuator set to Mounting position?
27th Mar 2020 8:37 pm
Gmcc
Member Since: 12 Mar 2015
Location: Aberdeenshire
Posts: 153
I’m not sure about that... could you explain more?D3 with lots of d4 extras!
27th Mar 2020 8:56 pm
Gareth Site Moderator
Member Since: 07 Dec 2004
Location: Bramhall
Posts: 26701
There is a special setting to put the actuator into mounting position, it extends the cables right out to aid assembly. It’s in the bible I thought?
It’s on page 23 of the bible.
Before removing the rear Brake disks, please carry out this sequence to put the Electronic Park
Brake into Service Mode. Ensure brake pads and calliper is fitted to all wheels.
In the car with ignition in Position II, press the brake pedal three times and hold the pedal down. Push down on the EPB switch for 3-5 seconds.
Go to the main fuse box in the engine bay and remove FL8 fuse 30A (pink Fuse) this will ensure that the EPB is not accidentally re-engaged.
27th Mar 2020 9:00 pm
Gareth Site Moderator
Member Since: 07 Dec 2004
Location: Bramhall
Posts: 26701
Because you have the callipers off, best to put a piece of wood or a couple of old pads in to stop the piston coming out when you push the pedal to activate it.
27th Mar 2020 9:05 pm
Gmcc
Member Since: 12 Mar 2015
Location: Aberdeenshire
Posts: 153
Ah okay, yeh service mode... i did do this, and ive got the handbrake cable back on. I wonder did it work correctly? And perhaps this is affecting things now? Is there a way to tell if the service mode is engaged by visually looking?D3 with lots of d4 extras!
It would probably crush wood. Would ( pun ) that matter? Possibly not as long as pistons don't travel too far.
Old pads are ideal or flat bits of metal..
Dean
====================================
2011 D4 XS - OBD port protection, RLD spare wheel protector, All LED interiors lights, Timed Climate enabled, iiD tool paired.
2011 D4 Landmark - Stolen from same dealer before I paid for it
2011 D4 GS - Stolen whilst at dealer ... All LED interiors lights, DRLs, Spare Wheel protector.
1996 300Tdi - Eaten by tin worms
27th Mar 2020 9:10 pm
Gmcc
Member Since: 12 Mar 2015
Location: Aberdeenshire
Posts: 153
Gareth wrote:
Because you have the callipers off, best to put a piece of wood or a couple of old pads in to stop the piston coming out when you push the pedal to activate it.
So go through the process again, but just make sure there is something in the calipers to stop the pistons coming out? So it won’t matter that the discS aren’t on?D3 with lots of d4 extras!
27th Mar 2020 9:12 pm
Gmcc
Member Since: 12 Mar 2015
Location: Aberdeenshire
Posts: 153
Right went through the service mode again, and had another go at getting discs on, and I’ve got them on, but are very tight. One side i can turn with the help of a bar, and the drivers side i can’t even move with a bar.. going to call it a night and have another go at it tomorrow. I suppose i could get it all back together and give it a drive..
Cheers for the pointers thus far. D3 with lots of d4 extras!
27th Mar 2020 10:21 pm
Disco_Mikey
Member Since: 29 May 2007
Location: Dundee, Scotland
Posts: 20731
Member Since: 06 Feb 2019
Location: Hampshire
Posts: 879
I had exactly the same problem a few weeks ago, I dont think my efforts with the brake pedal properly put it into Mounting mode.
Once I'd used the Gap IID tool it worked perfectly and the disc slid on easily.2022 BMW i4 M50. Bought Oct 2022. 10,200 miles and counting...
2014 BMW 435d convertible. Bought July 2021. 58,000 miles and counting...
2005 Discovery 3 HSE Auto. Bought Feb 2019. 169,000 miles and counting...
2009 Freelander 2 XS Manual. Bought Sep 2013. SOLD Aug 2021 (already regretted!)
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... All LED interiors lights, DRLs, Spare Wheel protector.
