Hi good folk.
Q. What lubricaton should I use, if anything?
After dismantling for cleaning and servicing the pedal box, I have a sticking brake pedal, which requires my foot to lift it back all the way, or brakes stick on, due to servo not returning all the way.
Upon investigation, pedals are freely hanging, and free to move and return. All pins etc were lubricated upon re-aseembly, and now re-checked. I removed a little tension on the pedal shaft pin on the bulkhead there, by slightly slackening the nut; test ride and problem persisted.
After applying a little oil as lubrication on the short visible portion (black) piston behind the boot cover at back of servo, I find it is a lot better, for the time being anyway, after a short ride.
I had earlier, when servicing the pedal box, pulled the piston into the servo out and wiped it clean, in order to clean up and re-painted the servo. I also replaced the torn boot.
I ought to dismantle the clevis there, pull out the pistin and wipe and lubricate it properly again I suspect. Probably too dry to begin with wien I re-assembled it.
I beleive my servo non-return valve and hose are fine. Brake servo works fine, in serving up brrake pressure. All caliper pistons and seals on disc brakes are good, checked and serviced.
Cheers,
John
Edited by chuee, 23 August 2023 - 07:23 PM.