WH 2007 Rear brake disc getting hot

[vk2jdh]

I recently changed the rear pads and handbrake shoes.

The disc pads were a tight fit requiring the calliper pistons to be pushed right back into the calliper. The HB shoes also need the adjuster right back for the hat to fit back on. This may be normal.

What happens now is occasionally the LHS disc gets very hot ( that you can smell it).

It's hard to tell if it's the disc pad or the HB shoes causing the friction. Not sure if the HB operating lever needs recalibration or is sticking and not releasing fully, or a calliper piston is sticking .

Any suggestions ?

[bodgie]

Did you clean and lubricate the calliper pins? If not the calliper may be sticking a little, a bit of lube may help.

Jason

[SeaComms]

Also on older vehicles the caliper pistons can end up with gunk in the fluid behind them. When you push the pistons right back like that for the new pads the gunk can get pushed in beside the piston causing it to be stiff, or, the pistons can have crud/surface rust on the part that is sticking out of the caliper that needed cleaning off before pushing the piston back in. When you apply the brakes the piston is now tight in the caliper and doesn't release properly keeping the brake pad pushing against the disc causing the heat and burning smell.

If it was all the time then I would say handbrake shoes, but if its not all the time then most likely a sticky piston.

A sticky piston will need the calipers overhauled.

[warod]

The HB shoes are famous for de-laminating (disbonding) on the WH/WK.....
Did mine about 12 months ago


Sent from my talking bone
using white fella magic

[Clarky]

I just replaced my rear pads on my 2006, had to compress the calipers back inside the housing & now one of my brakes I think is dragging.

The pistons in these calipers is made of a composite material & I have heard of them warping & sticking.

What I'm after is information on where I can get stainless steel pistons/kit or if there is another cause?

[Cherokee30D]

Originally Posted by Clarky

I just replaced my rear pads on my 2006, had to compress the calipers back inside the housing & now one of my brakes I think is dragging.

The pistons in these calipers is made of a composite material & I have heard of them warping & sticking.

What I'm after is information on where I can get stainless steel pistons/kit or if there is another cause?

Mmmmm interesting Clarky. I noticed a slight decrease in fuel economy after doing my front & rear pads. Makers me wonder if one or more pads may be dragging????

Cheers, Craig

[Clarky]

Found these replacement rear calipers for $232 a pair delivered

http://www.powerstop.com/products


http://www.ebay.com.au/itm/141139595...84.m1423.l2649

That's $116 per caliper.

Fronts a little more expensive $310 a pair.

http://www.ebay.com.au/itm/161173339...84.m1423.l2649

Decisions, decisions