Anyone know where to get these apart from Nissan? I have a couple that are a bit sticky due to corrosion. I'd already re built and the calipers, cleaned everything done the seals and even painted the darn things but after a trouble free year I had signs that one front hub was always hot and it seems to be because the 2 sticky pistons on one side are causing the pads to drag the disc a little. The pads have worn to the rusty bit on the piston and when I took the pads out for a looksee I could see fresh rust under the dust cover which is obviously the sticking point.

 

Still stops great and doesnt pull or anything but one side hot and the other cool bothers me.

 

Can only get worse, then warped discs!

Willie

YOu dont get warped discs from heat, you get them from repeated heat and then quickly cooling down. My discs and calipers get very hot on a longer run.

 

Stuart

My brakes are crap & always have been. I have to jump on the brake pedal to get the wheels to stop or get the ABS to kick in.

My brothers is the same, in fact his brakes are worse!

Could this be sticking pistons also or are the brakes just crap?:rolleyes:

Willie

 

...can't help you with a supplier other than MJP 01277374201 JRT Automotive 01494792211 - but thought ir worth a mention, I keep mine rust free by liberal use of hydraulic grease in the dust seals. Seems to work ok.

 

good luck

 

Jack

 

...move south it's dryer... speaking as a northerner living in East Anglia.

Thanks guys,

 

The sticking comes from pitting and loss of chrome in a couple of spots - this exposed steel rusts and the rust packs the seal space so that the piston doesnt retract properly after you brake - result is slight dragging and hot disc. This is well before the crap brakes scenario. My brakes will stand the car on its nose. Its just that after rebuilding them and cleaning and re using the 2 iffy pistons everything worked fine so far about a year. It just bothers me that one disc is always warm/hot even if I driven 10 miles with hardly any braking while the other side is stone cold. Of course if I step on it from high speed both are hot. I have RS2 wheels and can get my hand thru to feel the discs - even the wheel on the affected side eventually gets warm. The sticky pisons need levered back while the other 2 go in finger pressure as it should be.

 

Before I did them I had only 2 pistons each side doing anything. I reckon there are loads of probably uk zeds with seized pistons going around and their drivers thinking zeds have crap brakes - they dont. Just not good enough for track use.

 

Stuart, I think my prevousl discs warped because they were only getting brake pressure on one side on each disc. Uneven heating> warping or wear.

 

Might try the hydrauling grease to seal out the O2 if I cant get a couple of pistons or a 2nd hand caliper to strip. Nissan want about £45 each so I wont change all 8!

I've got my old calipers sitting complete in my garage, having upgraded to 6 pot AP Racing brakes. Like you say they work fine, except for on track (pulled into the pit lane at Oulton Park a couple of years back with no brakes at all ! :D )

 

Figure the postage to Scotland from Nottingham would probably cost more than they're worth though, 'cause they aint light ! :rolleyes:

Konrad

 

Wouldnt mind having your old ones if they're up for grabs. I am sure I could recover at least a couple of good pistons from them.

 

Are you ever past Burton? My bro in law has a company there. He could get them to me otherwise I'd gladly send you the postage and cover your trouble.

 

Willie