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hi guys just wondering if you could help me out here, a mate of mine is replacing the rear pads on his ek civic and he wanted to know how to compress the brake pistons in order to fit the new pads which are obviously wider? any help would be great... :)
u can just use a G-clamp to push it in
....
dont worry about the g-clamp if you dont have one. If you do, by all means use it. If you dont have one though, just use a screwdriver to push the piston back, just be careful of the disc and make sure that you have the brake fluid resovouire (spelling?) lid off and be careful of the fluid level as it will most likely overflow.
It is recommended to use a syringe to suck a little of the fluid out of the resovoire, but it isnt always necessary.. just make sure u only do one piston at a time.
yeah tried already but no real luck, any other ideas?
im just curious, your mate must have an EK4 wouldnt he? (to have discs at rear)
Also, has he changed the front. The rear's rarely need to be changed as compared to the fronts and most the braking is done at the front.
sorry to say fellas but you guys have just told him how to damage his rear calipers
you cant use a G clamp or the screw driver method on rear disk brakes,
what you do since you wont have the correct tool
as an aprentice I was to stingy and poor to fork out for one, so I made my own, Ill post a pic of it soon
before the ghetto tool, I usesed long nose pliers and pushed them into the rear caliper piston notches, ( you have to remove the caliper for this ) while turning the piston clockwise, you will see the piston move in, make sure you have the notch in the same spot as when you started as the pad sits in that notch and this is vital to the corect operation to the rear brakes.
you may have to remove some brake fluid from your resivour to allow for the fluid that is being pumped back in.
USE this info at your own risk, I nor OzHonda are not liable for any damage or loss or injuries caused by misinterpritation of this information.
you need to use a rear caliper screw back tool which is avail for $20xx
or you can use a big flat head screwdriver and slowly turn the piston back
be careful not to break yr rubber boot
id pay a bit of dosh to get the correct tool ... it winds back in its not a push piston... most rear calipers are like this...
the proper kit cost like $100 but the cheap ones are about $20
you take the caliper off the hub and put the tool in and wind back anti clockwise.. open up the bleeder so all the old fluid doesnt go back up the hoses to the master cylinder
and makes it easier to turn. then once wound back make sure the pad fits in the slot coz the inside one has a little notch that should sit inside the + section of the piston.
the once finished close off the bleeder .. reattach caliper to hub.. then put more brake fluid in reservoir and bleed brakes .. then should b all good :D
is it clockwise or anti clockwise ????
i just used a hell thick and wide wood chisel many times, no probs at all.
u need a clamp for front and even thats not the case all the time
if i remember correctly is rotate CLOCKWISE to shorten piston strokeQuote:
Originally Posted by ECU-MAN
also use a ring side of a spanner to lessen the effort for u to wind the tool back.
hmm
im not sure which way it goes, My hands just seem to do someting and the piston goes in.:confused:
You can use the chisel (good idea) but for certain calipers which have indents in them for the tool, you have no choice. I bought the tool from super cheap. It was only $15-19. It fits onto a 3/8" square drive socket wrench (use an extension so that it reaches in past the caliper body. And turn clockwise and push at the same time.
yeah i have seen that tool ^
on my EG5 the chisel worked fine.
john its clockwise :p LOL
thanx mate thats what he thought but he thought he should ask first..... we should be able to figure out what way to turn the piston with trial and error :) thanx again guys.Quote:
Originally Posted by EG5[KRT]
I did some rear disk pads yesterday
it is defenalntly clockwise like I originaly suggested.
thanx mate but we already figured it out
I personally turn them clockwise. If you cant find a big enough screwdriver to push and turn the piston with, a open ended 12mm spanner will also do the job.
Good luck!