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Rear Brake Slider pins


 
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wilf
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Joined: 07 Dec 2013
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Location: Norfolk

PostPosted: Fri Dec 13, 2019 21:42    Post subject: Rear Brake Slider pins Reply with quote

In the manual they refer to the rear brake caliper slider pins as 'Guide bolt' (top pin) and 'Lock bolt' (bottom pin) but I cannot see which one has the 3 flats along its length and which one has no flats. Can anyone tell me which goes where?
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Malcolm
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PostPosted: Sat Dec 14, 2019 12:32    Post subject: Reply with quote

In reality, as long as they are lubricated (with silicone or high melting point grease) it makes no differnce to the operation of the brakes.
The idea of the pin wth the flats is that when you remove the other pin to swivel the caliper to alow for removal of the pads, the swivel action causes the lubricant on the pin to be dispersed a little.
Thats why they refer to taking out the bottom (lock) bolt and swiveling the caliper on the top (guide) bolt.
Given how these pins are prone to sieze in position, for how long it takes, I allways remove and lubricate BOTH pins.
You may well find that someone has fitted a second hand bolt  which did not have the flats.
As I said, as long as they are well lubricated you will have no issues.
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Malcolm
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PostPosted: Sat Dec 14, 2019 12:33    Post subject: Reply with quote

In reality, as long as they are lubricated (with silicone or high melting point grease) it makes no differnce to the operation of the brakes.
The idea of the pin wth the flats is that when you remove the other pin to swivel the caliper to alow for removal of the pads, the swivel action causes the lubricant on the pin to be dispersed a little.
Thats why they refer to taking out the bottom (lock) bolt and swiveling the caliper on the top (guide) bolt.
Given how these pins are prone to sieze in position, for how long it takes, I allways remove and lubricate BOTH pins.
You may well find that someone has fitted a second hand bolt  which did not have the flats.
As I said, as long as they are well lubricated you will have no issues.
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wilf
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Location: Norfolk

PostPosted: Sat Dec 14, 2019 22:45    Post subject: Reply with quote

Malcolm wrote:
In reality, as long as they are lubricated (with silicone or high melting point grease) it makes no differnce to the operation of the brakes.
The idea of the pin wth the flats is that when you remove the other pin to swivel the caliper to alow for removal of the pads, the swivel action causes the lubricant on the pin to be dispersed a little.
Thats why they refer to taking out the bottom (lock) bolt and swiveling the caliper on the top (guide) bolt.
Given how these pins are prone to sieze in position, for how long it takes, I allways remove and lubricate BOTH pins.
You may well find that someone has fitted a second hand bolt  which did not have the flats.
As I said, as long as they are well lubricated you will have no issues.


Thanks for that explanation Malcolm. I have got the right ones fitted and I always put them back as I find them. I too remove both pins to remove pads and regularly too. How about the front sliders, one has a rubber seal on the end, do you know the reason for that?
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wilf
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PostPosted: Sat Dec 14, 2019 22:54    Post subject: Reply with quote

Forgot to say, I use CeraTec grease, it last well.
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Malcolm
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PostPosted: Sun Dec 15, 2019 8:13    Post subject: Reply with quote

Don't know the reason for that. Glad to see you DONT use Copaslip. Its amazing how many people, garages included, still lube the slider pins with the stuff.
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wilf
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PostPosted: Sun Dec 15, 2019 23:57    Post subject: Reply with quote

thumbup
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02Trooper777
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PostPosted: Fri Jan 03, 2020 19:20    Post subject: Reply with quote

wilf wrote:
thumbup


I use a silicone grease (bought a 3/4 full tin for 50p at a boot sale - then  later discovered it retailed at £83 per tin !!)

Got a vague feeling the bolt-heads were stamped "G" and "L" ….
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02Trooper777
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PostPosted: Fri Jan 03, 2020 19:27    Post subject: Reply with quote

Copaslip is brilliant in the right place. Refitting slightly rusty bolts (are you listening Edd China?).
Exhaust bolts etc.
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02 3.0 Trooper
Saab 9-3 2.3i convertible.(to be sold)
BMW 540i/6   1939 HRG 1100
1986 Saab 900 Turbo. '84 Marlin Roadster.
+ motorcycles & '76 Reliant Kitten (don't laugh - it has got 4 wheels)...
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wilf
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Joined: 07 Dec 2013
Posts: 185
Location: Norfolk

PostPosted: Fri Jan 03, 2020 21:33    Post subject: Reply with quote

02Trooper777 wrote:
wilf wrote:
thumbup


I use a silicone grease (bought a 3/4 full tin for 50p at a boot sale - then  later discovered it retailed at £83 per tin !!)

Got a vague feeling the bolt-heads were stamped "G" and "L" ….


Can't say I noticed or looked but will look next time. Thanks.
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