Mazda Rotary Club

General => General Technical => Topic started by: feelio on October 06, 2007, 07:17:16 PM

Title: Help....Rear Brakes doing my nut!!
Post by: feelio on October 06, 2007, 07:17:16 PM
I\'m in the process of changing my worn out rear pads and pushing in the piston on the rear calipers. Drivers side done after about an hour and a half, passenger side is being a stubborn son of a ......... I\'m an experienced tinkerer and after reading the manual, "turn piston clockwise" is the only tip it gives you! The first one went in after an unbelieveably long time and the second one (passenger side) hasn\'t moved after about an hour of turning the stupid bl**dy thing!!!! Ahhhhhhh
I\'m a little frustrated, any one offer any suggestions or had similar experience with this????
Thanks
Title: Help....Rear Brakes doing my nut!!
Post by: weejimmy on October 06, 2007, 07:31:28 PM
did you have to turn the 1st one or did it just go straight in?
if it goes straight in i usualy use a vice or a large pair of pipe grips
Title: Help....Rear Brakes doing my nut!!
Post by: feelio on October 06, 2007, 07:34:57 PM
no it didn\'t go straight in,  I tried to push it in with a large "G" clamp but had no affect. That\'s when I read the manual and it stated to turn it clockwise. After about a million turns it went in. Any ideas?
Title: Help....Rear Brakes doing my nut!!
Post by: weejimmy on October 06, 2007, 07:57:51 PM
g clamp but put a bit of wood against the piston
like a long bit of wood so you can get leverage on it and turn it but that mite be a pain in the ass
there is a tool you get thast basicly a clamp that turns as you tighten it for doing this, im trying to think how to try mimic that some how
wd40 usualy soves all my mechanicall problems.
Title: Help....Rear Brakes doing my nut!!
Post by: RobbieRX-7 on October 06, 2007, 08:08:14 PM
It might be easier if you take the cap off the resevoir. I found a pair of bent long nose pliers work a treat.
Title: screw
Post by: Eddie on October 06, 2007, 08:43:47 PM
You should just screw it in, and as RobbieRX-7 said a long nose pair of pliars worked a treat. if one side screws clockwise then wouldnt the other side screw the oposite way? just a thought.

cheers
Title: Help....Rear Brakes doing my nut!!
Post by: m4drx on October 06, 2007, 09:24:13 PM
mate sounds like its seized.

me and mark spent like an hour or so doing the front nice and relaxed took 3 of us and the proper tools + scaffolding poles for leverage about 9 hours to finally decide to change them. new ones took half hour to fit and finish.
Title: Help....Rear Brakes doing my nut!!
Post by: M@r]{ on October 06, 2007, 10:08:11 PM
^  Agreed. Sound seized to me.  Mine were like that.  The second hand set I bought to replace them went in no problem
Title: Help....Rear Brakes doing my nut!!
Post by: feelio on October 06, 2007, 11:37:49 PM
Thanks for all your replies, I managed to get it in, nothing more complicated than hours of twisting the bl**dy thing!!!
Just as note, twisting it the other way brings the piston out pretty sharpish, so not recomended.
Thanks again for all your replies.
Title: Help....Rear Brakes doing my nut!!
Post by: RemarkLima on October 07, 2007, 02:04:15 AM
Yeah, you really need to push in the piston hard to get it moving in my experience, you can\'t just twist.

But the tool makes life very easy, even with a seized / sticky one.
Title: Help....Rear Brakes doing my nut!!
Post by: RobMatthews on October 07, 2007, 06:15:53 PM
Did you have the handbrake on? the handbrake is part of the caliper so that would hold it out making it difficult to go back in?
Title: Help....Rear Brakes doing my nut!!
Post by: Cycaduk on October 08, 2007, 07:09:35 PM
I think its because of the handbrake that you need to do the twisty bit. the right tool is nice, but you can allways improvise
Title: Help....Rear Brakes doing my nut!!
Post by: royal on October 08, 2007, 07:16:52 PM
Pistons on brakes can be a right PITA. I remember having a nightmare doing my front ones last year.