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What to use as assembly lube for brakes

JTGS850GL

JTGS850GL

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Past Site Supporter
Getting ready to reassemble the brake system components on the new to me GS1000G.

Just curiuos as to what others have used to lubricate the master cylinder piston and caliper pistons during reassembly?
 
I've always used a bit of the brake fluid for lube when reinstalling the caliper seals and pistons

Nic
 
Agreed. The manual sez to use only brake fluid.

Don't contaminate the system with anything else.

Brake grease is for the exterior only -- mainly on the sliders.
 
This stuff works awesome. I was VERY pleased. Good for internal (pistons/seals) and external (pins etc) parts.
I think the other similar product is not good for internals, it has a red label and similar name.
51nvcE7Qm-L._AA500_.jpg


41-WsAqGToL._AA500_.jpg
 
I'm not familiar with that Permatex stuff, but I do know that Brembo supplies a brake lube grease with some of their seal kits. The service manuals typically say brake fluid only, but apparently there are some better materials available if you know where to look.
 
I feel so confusled.

There is some kind of permatex product that isn't red and is good for lubing the pistons and cylinders of brake systems?

It's also good for the pivot points etc. on brake calipers?

Really? Please elaborate.....

I was so wrong, apparently, to think Permatex magix extended only into the realm of gasket goo.

S.
 
just stick to brake fluid for pistons and seals, you cant go wrong. it works and saves buying another product that you will rarely use....
 
Chuck78 said:
This stuff works awesome. I was VERY pleased. Good for internal (pistons/seals) and external (pins etc) parts.
I think the other similar product is not good for internals, it has a red label and similar name.
41-WsAqGToL._AA500_.jpg
Click to expand...

Tech data sheet mentions using it for sliding pins and various exterior caliper applications. A bit confusing regarding whether it's okay for inside the caliper though.

Did a bit of web surfing and read comments by some guys that rebuild brakes for a living, and they typically use a silicon grease for the pistons. This Permatex is sililcon based so...
 
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I just wipe the seals and pistons with some brake fluid. Carrier pins get a smear of black molybdenum grease.
 
Recent Brake/Caliper/Braided Line job

Recent Brake/Caliper/Braided Line job

+1 agree and it's what the manual says to use...Dot 3/4 brake fluid...at least for my "T". I wouldn't consider anything else unless you're gonna use it to fill the MC...but then again, it needs to be Dot 3/4 brake fluid. I wouldn't recommend mixing different components.



Ed
 
Your correct Ed..keep it all one or the other. The difference basically is that DOT 4 has a higher boiling point than DOT3.
 
^^ I like the "buffet of knowledge" reference...goes well with my "smorgasbord".



Ed
 
This could be considered a stupid question, could anti-seize be used on the pins and on the back of the pad shims?
 
jbird7262 said:
This could be considered a stupid question, could anti-seize be used on the pins and on the back of the pad shims?
Click to expand...

Well, it's been used for decades on the backs of car pads and shims (at the instigation of the manufacturers of the vehicles, too), but I've always been a bit leary of slapping it on bike pads, but I know others do, with no bad results. I prefer to sort out the bike calipers without it, and only use it on bolts that should never be allowed to seize up through corrosion. The two caliper retaining bolts, for example
 
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