Slider pins grease

Robti · 9th February 2024, 09:10

Hi refurbing my rear callipers as brakes have been heating and a few months back took the slider pins out and cleaned and greased with red rubber grease but overheating back so full refurb now. So pins grease or not and light smear or pack it in ?
Thanks

stocktake · 9th February 2024, 09:29

Some do, some don't
My understanding is they are supposed to be dry sliding pins though.

Robti · 9th February 2024, 10:15

Quote:

Originally Posted by stocktake

Some do, some don't
My understanding is they are supposed to be dry sliding pins though.

Thanks I cleaned and greased with red rubber grease before and started stripping them down and the grease is thickening hardening but don’t know if that was because of the sticking piston

Update seems I asked this a while back and was told a light smear

suzublu · 9th February 2024, 10:30

And make sure the "wings" on the pads and the grooves on the carrier are clean 😎

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SD1too · 9th February 2024, 11:09

Quote:

Originally Posted by Robti

... took the slider pins out and cleaned and greased with red rubber grease ...

Hi Robert,

Red rubber grease is specified for locations in contact with brake fluid such as the piston seals.
For the slider pins you could try white grease or even petroleum jelly. Anything which is waterproof and slippery will work!

Also don't forget to lubricate the metal-to-metal friction points between sliding caliper and carrier.

Simon

TourerSteve · 9th February 2024, 11:52

Quote:

Originally Posted by Robti

Hi refurbing my rear callipers as brakes have been heating and a few months back took the slider pins out and cleaned and greased with red rubber grease but overheating back so full refurb now. So pins grease or not and light smear or pack it in ?
Thanks

The guide /slide pins are not meant to be lubricated as grease can attack the rubber sleeve and attract dust which can turn it more sticky
I certainly wouldn't recommend any petroleum or solvent based products be used as it has the potential to attack the rubber slide sleeve
A good clean up with a wire brush is sufficient to ensure correct operation
The BMW instruction sheet for the brakes details that the guide screws as " do not grease"

stocktake · 9th February 2024, 12:26

Courtesy of Tourer Steve

No grease advised specifically

Ed3 · 9th February 2024, 13:31

These like to grease:-
https://www.youtube.com/watch?v=ryG07ohauT0

https://www.youtube.com/watch?v=mhWVYmXp_fA

Says of type of grease to avoid swelling:-
https://www.youtube.com/watch?v=-nSF4cyBK9c

stocktake · 9th February 2024, 14:02

Quote:

Originally Posted by Ed3

These like to grease:-
https://www.youtube.com/watch?v=ryG07ohauT0

https://www.youtube.com/watch?v=mhWVYmXp_fA

Says of type of grease to avoid swelling:-
https://www.youtube.com/watch?v=-nSF4cyBK9c

I think the videos on Youtube show fully encapsulated slider pins, if i remember correctly the rover/BMW ones are open to air as the pads wear, adding grease could encourage dust and grime contamination to the exposed pins.

Bolin · 9th February 2024, 15:05

From the Rover 75/MG ZT workshop manual - service procedures:

Quote:

Brake pads - front
70.40.02

Refit

9. Lubricate guide pins with suitable anti-seize grease.

Same for rear pads.

I used copper slip, thought it was more correct than red rubber grease and is the usual thing to use for 'anti-seize' applications.

9th February 2024, 09:10	#1
Robti Posted a thing or two MG ZT-T 190+,Rover 800 vitesse coupe Join Date: Aug 2014 Location: Hamilton Posts: 1,979 Thanks: 616 Thanked 228 Times in 210 Posts	Slider pins grease Hi refurbing my rear callipers as brakes have been heating and a few months back took the slider pins out and cleaned and greased with red rubber grease but overheating back so full refurb now. So pins grease or not and light smear or pack it in ? Thanks __________________ Robert

9th February 2024, 09:29	#2
stocktake Vis Whiz Rover 75 2.5 auto Saloon Join Date: Jun 2007 Location: LEEDS Posts: 20,594 Thanks: 2,057 Thanked 3,056 Times in 1,621 Posts	Some do, some don't My understanding is they are supposed to be dry sliding pins though. __________________ Dave... Lost a few stones and a Gall Bladder and part of a bile duct and all of my dignity in the suppository incident

9th February 2024, 12:26	#7
stocktake Vis Whiz Rover 75 2.5 auto Saloon Join Date: Jun 2007 Location: LEEDS Posts: 20,594 Thanks: 2,057 Thanked 3,056 Times in 1,621 Posts	Courtesy of Tourer Steve No grease advised specifically __________________ Dave... Lost a few stones and a Gall Bladder and part of a bile duct and all of my dignity in the suppository incident Last edited by stocktake; 9th February 2024 at 12:28..

9th February 2024, 13:31	#8
Ed3 Loves to post Rover 75 CDTi saloon Join Date: Nov 2017 Location: UK Posts: 307 Thanks: 88 Thanked 29 Times in 26 Posts	These like to grease:- https://www.youtube.com/watch?v=ryG07ohauT0 https://www.youtube.com/watch?v=mhWVYmXp_fA Says of type of grease to avoid swelling:- https://www.youtube.com/watch?v=-nSF4cyBK9c Last edited by Ed3; 9th February 2024 at 13:37..

9th February 2024, 10:30	#4
suzublu This is my second home rover 75 1.8 vvc club se wedgwood blue Join Date: Aug 2009 Location: Seaton Carew Posts: 26,955 Thanks: 65 Thanked 7,142 Times in 4,642 Posts	And make sure the "wings" on the pads and the grooves on the carrier are clean 😎 Sent from my SM-A145R using Tapatalk