number-1
|
| posted on 23/11/23 at 06:28 PM |
|
|
Caliper slide pin grease
Can anyone point me to the correct grease for caliper slide pins?
Cheers
N1
|
|
|
|
|
Slimy38
|
| posted on 23/11/23 at 08:15 PM |
|
|
I've always used red rubber grease, mainly because the covers are usually rubber and most other greases can react with rubber. I've no idea
whether that is the best choice though.
|
|
|
Mr Whippy
|
| posted on 24/11/23 at 12:40 PM |
|
|
I normally use copper slip and have never seen any detrimental effects of the rubber, if that's was it is. I did use the silicone grease supplied
with the volvo's new calipers buy can't say I was won over. Just google - silicone brake caliper grease. Just keep it well away from the
pads or they'll be wreaked.
[Edited on 24/11/23 by Mr Whippy]
|
|
|
jps
|
| posted on 24/11/23 at 01:20 PM |
|
|
I’ve used CV grease on the basis it is OK with CV boot rubber so will be ok with slider pin rubber
|
|
|
gremlin1234
|
| posted on 24/11/23 at 04:26 PM |
|
|
there is a school of thought that says they should be installed 'dry' with no grease whatsoever.
the grease will just hold all the dust and dirt, and turn to a black jam.
I suspect this will work better on loose fitting pins with no rubbers at all.
|
|
|
mcerd1
|
| posted on 24/11/23 at 11:01 PM |
|
|
quote:
Originally posted by Slimy38
I've always used red rubber grease, mainly because the covers are usually rubber and most other greases can react with rubber. I've no idea
whether that is the best choice though.
^^^ I've always used rubber grease - a small tin around £10 by the looks of it now
(i'm still using a tin my dad had that his uncle gave him - its probably a least 10 years older than me and half full still  )
https://www.merlinmotorsport.co.uk/p/millers-red-rubber-grease-500grms-mill-5196
https://rimmerbros.com/Item--i-RX1794--SelectedCurrency-1?gad_source=1&gclid=CjwKCAiAsIGrBhAAEiwAEzMlCzwH63yn8UFxmrR69LG_FqicZx07FTEJK4LjuvfHyle65
19dZeJIDxoCkNwQAvD_BwE
or you could get this stuff - for all you'll need, but they are only a few £ less for a one use size....
https://www.amazon.co.uk/Silicone-Grease-Sachets-Caliper-Slider/dp/B07QHG8XRL/ref=sr_1_4?m=A1E6V8KLGLYORO&marketplaceID=A1F83G8C2ARO7P&qid=170
0866111&s=merchant-items&sr=1-4
|
|
|
mcerd1
|
| posted on 24/11/23 at 11:08 PM |
|
|
quote:
Originally posted by gremlin1234
there is a school of thought that says they should be installed 'dry' with no grease whatsoever.
the grease will just hold all the dust and dirt, and turn to a black jam.
I suspect this will work better on loose fitting pins with no rubbers at all.
the pins that have the rubber boots on defiantly need greased
the other metal on metal contact area's i've tried with and without grease over the years - my current thinking is with a very small amount
of copper grease painted on the contact areas only.
(i.e. just enough to lightly coat the contact surface, but not enough for any build-up / squeeze out if that makes sense)
|
|
|
craig1410
|
| posted on 26/11/23 at 09:50 AM |
|
|
I used to use copper grease like many folks but a few years ago I read an article that pointed out it wasn’t actually “grease” and was quite hostile
to rubber components. The copper in it can also interfere with ABS sensors apparently so don’t use it when installing sensors. I don’t really use
copper grease anywhere now other than a light smear on glow plug threads when installing.
The article recommended “brake grease” which it turns out is mostly just silicone grease. So I now just use a tiny smear of this stuff.
https://www.amazon.co.uk/dp/B01M9GVQ8F
I use different stuff for brake pad sliding surfaces. It’s Textar Cera Tec which I think I got at ECP
https://textar.com/en/service-products/#ceratec
HTH
|
|
|
number-1
|
| posted on 26/11/23 at 04:52 PM |
|
|
Cheers all. I opted for the red rubber grease
|
|
|
adithorp
|
| posted on 26/11/23 at 06:40 PM |
|
|
Depends on the slide pins. If they're steel pins in steel holes the copper grease or high temp grease. If the pins have a rubber sleeve on the
pin or go through rubber bushes then red rubber grease. Any mineral grease will cause the fibber to swell and I regularly have to deal with customers
sticking brakes where that's the issue either from DIY or other garages.
|
|
|
Mr Whippy
|
| posted on 27/11/23 at 12:48 PM |
|
|
I just never seen any deterioration to the seals with copper grease. I actually reused some of them on the volvo when changing the calipers (it was
hit or miss if they were included) and after a bit of a clean in petrol it was pretty much impossible to tell new from old and they were 19 years old.
You can't not put anything on them as they will just bind.
|
|
|
craig1410
|
| posted on 30/11/23 at 03:41 PM |
|
|
Yeah I can't say I've seen obvious rubber deterioration due to copper grease either but having used silicone grease for a few years now I
would never go back to using copper grease.
The silicone grease is very high temperature grease so there is no risk of it losing viscosity and ending up in places it wasn't intended to go,
and it's much much cleaner than copper grease when you come back to it months or years later. I use it around the centre hub of my alloy wheels
where they mount to the flange on the discs and it never fails to prevent seizure. I also use it when I insert ABS sensors as it has no copper to
interfere with the sensor magnetic flux. I also put a smear around my brake pipes where the plastic coating ends and the connection starts.
FYI, I don't use any grease on my wheel bolts these days as they are generally meant to be kept dry.
|
|
|
adithorp
|
| posted on 30/11/23 at 07:05 PM |
|
|
The ones where copper-slip is an issue are generally the ones with pins into blind holes and one pin has a recesse on it with rubber sleeve in it
(anti-rattle). Mostly Jap/Korean cars. It only needs to swell slightly to stick.
|
|
|
mgb281
|
| posted on 28/12/23 at 04:46 PM |
|
|
quote:
Originally posted by craig1410
Yeah I can't say I've seen obvious rubber deterioration due to copper grease either but having used silicone grease for a few years now I
would never go back to using copper grease.
The silicone grease is very high temperature grease so there is no risk of it losing viscosity and ending up in places it wasn't intended to go,
and it's much much cleaner than copper grease when you come back to it months or years later. I use it around the centre hub of my alloy wheels
where they mount to the flange on the discs and it never fails to prevent seizure. I also use it when I insert ABS sensors as it has no copper to
interfere with the sensor magnetic flux. I also put a smear around my brake pipes where the plastic coating ends and the connection starts.
FYI, I don't use any grease on my wheel bolts these days as they are generally meant to be kept dry.
AS Craig1410 says, silicone grease is the correct one to use. If you buy calliper rebuild kits they normally contain a tube of vegetable oil based
"red rubber" grease and a tube of silicone grease for the pins. The red rubber grease doesn't affect the calliper seals and provides
lubrication on assembly and dissolves harmlessly into the brake fluid. The silicone grease is used for the pins because it is waterproof and
doesn't affect the "anti chatter" rubber sleeves that are normally fitted to one of the pins
|
|
|
