Stainless Steel Pistons for Brakes

[KFH]

I had a mate of mine turn some stainless pistons up for my brakes.  The cylinders have be relined with stainless also.  Should I use rubber grease or just brake fluid when I reassemble them?  My experience with rubber grease is that after several years it goes gooey.

Keith

[FC_fer_me]

Keith, most workshop manuals suggest soaking rubber seals in new brake fluid before assembly. Cheers, Jack

[KFH]

Thanks Jack.  I'll go that way.
Keith

[Maco]

I could be incorrect but I don't think you should run the same type of metals together as they will 'pick up', me be some of the gurus can advise.

John

[FC427]

I could be incorrect but I don't think you should run the same type of metals together as they will 'pick up', me be some of the gurus can advise.

John

Good question John most calipers even after market [Willwood, Outlaw ] etc use an aluminium body with stainless pistons.. OME use Aluminium or castiron bodies with stainless pistons.. Keith better do some research ....FC427....

[Old_Mt_Isa_Boy]

Where's Ken If he doesn't know where all in trouble.

Rgds

Wayne

[mcl1959]

I'm here, 
You shouldn't put similar metals together.
I have seen original cast iron cylinders with steel pistons and these seem to work OK. Both the aluminium and steel pistons corrode when they get dry.
I think I would use aluminium pistons in stainless sleeves rather than stainless steel.
I personally would use rubber grease as well since most damage is done when the piston to sleeve interface goes dry rather than a little gooey.

Ken