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wilf ***
Joined: 07 Dec 2013 Posts: 185 Location: Norfolk
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Posted: Fri Dec 13, 2019 21:42 Post subject: Rear Brake Slider pins |
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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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Posted: Fri Dec 13, 2019 21:42 Post subject: Google Ads keep this community free to join! |
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Malcolm Lifetime member
Joined: 22 Feb 2009 Posts: 834 Location: Great Yarmouth Norfolk
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Posted: Sat Dec 14, 2019 12:32 Post subject: |
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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. _________________ Never let a meal go by----Empty sacks dont stand up!!! |
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Malcolm Lifetime member
Joined: 22 Feb 2009 Posts: 834 Location: Great Yarmouth Norfolk
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Posted: Sat Dec 14, 2019 12:33 Post subject: |
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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. _________________ Never let a meal go by----Empty sacks dont stand up!!! |
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wilf ***
Joined: 07 Dec 2013 Posts: 185 Location: Norfolk
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Posted: Sat Dec 14, 2019 22:45 Post subject: |
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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 ***
Joined: 07 Dec 2013 Posts: 185 Location: Norfolk
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Posted: Sat Dec 14, 2019 22:54 Post subject: |
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Forgot to say, I use CeraTec grease, it last well. |
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Malcolm Lifetime member
Joined: 22 Feb 2009 Posts: 834 Location: Great Yarmouth Norfolk
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Posted: Sun Dec 15, 2019 8:13 Post subject: |
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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. _________________ Never let a meal go by----Empty sacks dont stand up!!! |
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wilf ***
Joined: 07 Dec 2013 Posts: 185 Location: Norfolk
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Posted: Sun Dec 15, 2019 23:57 Post subject: |
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02Trooper777 ****
Joined: 08 May 2016 Posts: 488 Location: Shropshire
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Posted: Fri Jan 03, 2020 19:20 Post subject: |
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wilf wrote: |
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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" …. _________________ 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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02Trooper777 ****
Joined: 08 May 2016 Posts: 488 Location: Shropshire
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Posted: Fri Jan 03, 2020 19:27 Post subject: |
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Copaslip is brilliant in the right place. Refitting slightly rusty bolts (are you listening Edd China?).
Exhaust bolts etc. _________________ 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 ***
Joined: 07 Dec 2013 Posts: 185 Location: Norfolk
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Posted: Fri Jan 03, 2020 21:33 Post subject: |
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02Trooper777 wrote: |
wilf wrote: |
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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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