preserving brake master cylinders

[MARINAMADBAZ]

Hi
i have around 12 or maybe more pedal boxes taken off marina's and ital's
i wanted to strip the master cylinders off.brake and clutch as the peadal boxes are taken up room
i wondered what the best way would be to preserve the master cylinders from seizing up.
do i just wrap them up in bags or would it be best to spray something in them and seal them
as these parts are becoming very rare i wanted to try ansd save what i have got left
any advice would be grateful
Best regards
Barry

[locost_bryan]

I presume the risks would be corrosion and perishing of the seals? Can they be stored with fluid inside, with blanking plugs? And in vacuum sealed bags?

[MarinaCoupe]

The two things you are protecting the master cylinders from are rust and rubber degradation.

Rust, IMHO, I think leaving brake fluid in would be bad news as the fluid carries water in it so you are leaving a rust inducer inside the MC. Better to drain and rinse out with a solvent to get rid of any water, then spray with a water repelent spray (WD40 etc?).

Rubber degradation, the wrong oils, solvents and light ruin rubber seals, here I would use the red rubber grease liberally and then wrap the whole thing in something like the old style waxed paper, to keep the light out.

Then store in a cool & dry place.