Member Since: 23 Apr 2010
Location: Norway
Posts: 44
Caliper guide pin bolts
About to change the disc and pads to EBC on my 2012 Discovery 4 HSE. However, I am having a hard time finding the genuine guide pin kit and the associated bolt. Thought I would change that as well. Car has done 90k km.
So far I have assembled this list of parts that I need (in addition to the EBC stuff already at hand):
SMN500020 (1)
LR031947 (1)
LR019626 (1)
LR019625 (1)
SMN500012 (1)
Guide pin and bolt etc?
Also, is it correct that I should also change the brake hoses at 90k km? Maybe that is 90k miles? If not, any point of going braided? Anything else I should change while I am there?
Any help on this would be greatly appreciated.
Thanks in advance.
31st Jul 2018 10:04 am
Bardley
Member Since: 02 May 2018
Location: Hertfordshire
Posts: 439
Rear SMN500040
Front SEE500020
I used Britpart from JGS. Easy fit in situ without removing caliper carrier.2011 MY D4 HSE
Previously 2001 D2 TD5, 1996 D1 300Tdi, 1985 90 2.2 petrol.
Bikes! KTM, BMW, British, Classics and others.
31st Jul 2018 10:38 am
flagre
Member Since: 23 Apr 2010
Location: Norway
Posts: 44
Thanks! Would you have the part number for the bolt that attaches to the guide pin as well (the one that usually comes with the pad kits)?
31st Jul 2018 11:04 am
Bardley
Member Since: 02 May 2018
Location: Hertfordshire
Posts: 439
Some kits come with them. Not overly necessary to fit new bolts tho'.2011 MY D4 HSE
Previously 2001 D2 TD5, 1996 D1 300Tdi, 1985 90 2.2 petrol.
Bikes! KTM, BMW, British, Classics and others.
31st Jul 2018 11:09 am
highlands
Member Since: 11 Jan 2010
Location: NW Highlands
Posts: 5095
Re: Caliper guide pin bolts
flagre wrote:
Also, is it correct that I should also change the brake hoses at 90k km? Maybe that is 90k miles? If not, any point of going braided? Anything else I should change while I am there?
If they look undamaged I'd wait to change the hoses when the steel brake lines from the middle rearwards need replacing due to rust!
The rubber hose runs are so short on most cars I've never felt any need to go braided.Black 05 TDV6 HSE Auto
Grey 05 TDV6 HSE Auto (Gone)
54 TDV6 SE Man (killed by me )
31st Jul 2018 11:25 am
flagre
Member Since: 23 Apr 2010
Location: Norway
Posts: 44
This is also what I suspected. However, since I am down there I thought I would just change it.
Bardley wrote:
Some kits come with them. Not overly necessary to fit new bolts tho'.
31st Jul 2018 11:30 am
flagre
Member Since: 23 Apr 2010
Location: Norway
Posts: 44
Re: Caliper guide pin bolts
Okey. It seems only Britpart offers a braided kit. Nothing from e.g. Goodridge. Maybe I will just add a set in the order so I have it for later use. Seems the price diff between flexible and braided is anyway rather small. Any reason not to thrust the quality of Britpart? After all it is quite a crucial part.
highlands wrote:
flagre wrote:
Also, is it correct that I should also change the brake hoses at 90k km? Maybe that is 90k miles? If not, any point of going braided? Anything else I should change while I am there?
If they look undamaged I'd wait to change the hoses when the steel brake lines from the middle rearwards need replacing due to rust!
The rubber hose runs are so short on most cars I've never felt any need to go braided.
31st Jul 2018 11:32 am
Bardley
Member Since: 02 May 2018
Location: Hertfordshire
Posts: 439
As above, just check the rubber on the hoses, amd if they are ok, then leave alone.
You're looking for fractures in the hose if you bend them slightly.
Research the hoses at another time and change when needed.
Britpart seem to get a bad deal, but you only hear of people's bad experiences, never good. Most is opinion, and some cases it's a view from someone with no mechanical knowledge whatsoever. It's rife and can do untold damage.2011 MY D4 HSE
Previously 2001 D2 TD5, 1996 D1 300Tdi, 1985 90 2.2 petrol.
Bikes! KTM, BMW, British, Classics and others.
31st Jul 2018 12:03 pm
flagre
Member Since: 23 Apr 2010
Location: Norway
Posts: 44
Okey. Thanks for all the inputs so far. I have not yet managed to find the part numbers for the bolts, but will search a bit more.
31st Jul 2018 12:26 pm
highlands
Member Since: 11 Jan 2010
Location: NW Highlands
Posts: 5095
If you aren't putting new bolts on the calipers make sure you use (blue) threadlock - new bolts have it applied already.Black 05 TDV6 HSE Auto
Grey 05 TDV6 HSE Auto (Gone)
54 TDV6 SE Man (killed by me )
31st Jul 2018 1:47 pm
ItSmee
Member Since: 05 Nov 2015
Location: Berkshire
Posts: 34
SMV500010 slider bolt front single
LR015546 slider bolt rear single
You might also want to consider changing the calliper carrier bolts.
SYG500050 carrier bolt front single
SYG000013 carrier bolt rear single
When changing the front pads take care to observe which way around the shins are fitted. On the genuine shims two have a black backing and two are all metal (per pack). When I did mine I didn’t realise this until I went to fit them, then I couldn’t find any info as to their orientation.
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