Rusty seized calipers

[james_stan]

Hi all

Whilst I am very interested in the Frontera front brake option/plan proposed by Kevdonlon.
I will press ahead with plans to refurbish some late bay disc set-up whilst we are awaiting the outcome.

I have some rusted calipers that 'off bus' are fairly clearly seized (so no chance of clamping one side and
pushing the brake pedal) and I was going to dunk them in Vinegar or Citric acid (as per some previous threads)

Anyone any views on this ? If it attacks the piston seals no problem as these will be rebuilt but is it likely to
corrode/pit the pistons or maybe affect the o-rings insdie the calipers ?

Cheers

James

 

[ronmidg]

I would expect any rust eater to struggle to free a seized caliper as the corrosion is inside a narrow gap, if it wont pump out and some heat doesnt free it dont see how you will save the piston.

 

[Araon]

foot pump or air line a good soak in penetrant

 

[uber cool]

leave it in a bucket of diesel to soak. If/when it comes out and its pitted buy new, not worth taking a chance on brakes

 

[james_stan]

Hi all

Thanks for the suggestions will no doubt try a combination of all the above....

Cheers

james