Rear disc hot again!

Slaya · 7th May 2018, 15:41

Well, after having my discs and pads replaced a few weeks ago to cure the overheating disc/wheel, it has started again today!

Got out of the car and thought someone was having a strange smelling barbecue...then noticed the smoke from the rear.

Time to get her booked into another garage for a look...

suzublu · 7th May 2018, 15:51

Sticking caliper, change it

MSS · 7th May 2018, 16:02

Quote:

Originally Posted by suzublu

Sticking caliper, change it

Agreed, but rebuild it at less than half the cost. All it will need is a new piston and seals for each side.

Preferably do all four.

stevestrat · 7th May 2018, 16:46

Quote:

Originally Posted by suzublu

Sticking caliper, change it

Back in my motorcycling days I used to get that so regularly I made a gizmo that fitted on a foot pump for blowing the pistons out.

Slaya · 7th May 2018, 16:47

Thanks for the replies.

Any suggestions on suppliers/brands of calipers? I've seen prices ranging from £20 to £160 a side...

I've also seen the repair kits on ebay for about £20 - are these any good?

Fusilier · 7th May 2018, 16:53

Quote:

Originally Posted by Slaya

Thanks for the replies.

Any suggestions on suppliers/brands of calipers? I've seen prices ranging from £20 to £160 a side...

I've also seen the repair kits on ebay for about £20 - are these any good?

replacement piston and seals, and very good,

https://www.ebay.co.uk/itm/MG-ZT180-...kAAOSw73NaxhPY

or new Rear Calliper for around £65

https://www.ebay.co.uk/itm/MG-ZT-ZTT...IAAOSwxX1Z3O1M

Stu

Jim Jamieson · 7th May 2018, 20:29

Brake calipers are not worth messing around with, better in the long run to simply replace it. You will get one at a reasonable price from any good motor factors.

Slaya · 16th May 2018, 18:30

Got the caliper sorted yesterday at another local-ish garage - after the first garage I went to said there was nothing wrong with it...

They showed me the one they took off that had been overheating, and it was in a terrible state, the piston wouldn't push in all the way due to rust.

So my wallet is a little lighter, but at least the problem is now sorted.

Glad to be back in the ZT after a week of driving our Corsa.....and the Focus I bought at the weekend as a spare just in case the ZT is off the road again.

There was a lovely TF in the garage (apparently a local MG enthusiasts), in grey - looked immaculate - if only I had more room, would love one!

minimutly · 17th May 2018, 21:14

I don't want to rain on your parade, but the crumbly calliper may be as a result of the overheating, not the cause of it....
It has been known, and I've seen it myself, for the flexi hose to become restrictive, to the point it only allows flow one way, stopping the piston retracting, thereby causing the overheating issue.
Hopefully not, in your case, but keep an ey on just in case.

impvan · 18th May 2018, 16:51

My Mk3 Festa was the same - one of the brake flexi's became a one-way valve and would randomly stick 'on'.

7th May 2018, 15:41	#1
Slaya Loves to post MG ZT V6 160+, MG TF 135, Focus 1.6 Zetec Join Date: Mar 2010 Location: Coventry Posts: 285 Thanks: 129 Thanked 68 Times in 50 Posts	Rear disc hot again! Well, after having my discs and pads replaced a few weeks ago to cure the overheating disc/wheel, it has started again today! Got out of the car and thought someone was having a strange smelling barbecue...then noticed the smoke from the rear. Time to get her booked into another garage for a look...

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7th May 2018, 15:51	#2
suzublu This is my second home rover 75 1.8 vvc club se wedgwood blue Join Date: Aug 2009 Location: Seaton Carew Posts: 26,905 Thanks: 65 Thanked 7,142 Times in 4,642 Posts	Sticking caliper, change it

7th May 2018, 16:47	#5
Slaya Loves to post MG ZT V6 160+, MG TF 135, Focus 1.6 Zetec Join Date: Mar 2010 Location: Coventry Posts: 285 Thanks: 129 Thanked 68 Times in 50 Posts	Thanks for the replies. Any suggestions on suppliers/brands of calipers? I've seen prices ranging from £20 to £160 a side... I've also seen the repair kits on ebay for about £20 - are these any good?

7th May 2018, 20:29	#7
Jim Jamieson This is my second home Rover less ! Join Date: Jun 2011 Location: Tarbolton Posts: 3,442 Thanks: 393 Thanked 888 Times in 542 Posts	Brake calipers are not worth messing around with, better in the long run to simply replace it. You will get one at a reasonable price from any good motor factors.

16th May 2018, 18:30	#8
Slaya Loves to post MG ZT V6 160+, MG TF 135, Focus 1.6 Zetec Join Date: Mar 2010 Location: Coventry Posts: 285 Thanks: 129 Thanked 68 Times in 50 Posts	Got the caliper sorted yesterday at another local-ish garage - after the first garage I went to said there was nothing wrong with it... They showed me the one they took off that had been overheating, and it was in a terrible state, the piston wouldn't push in all the way due to rust. So my wallet is a little lighter, but at least the problem is now sorted. Glad to be back in the ZT after a week of driving our Corsa.....and the Focus I bought at the weekend as a spare just in case the ZT is off the road again. There was a lovely TF in the garage (apparently a local MG enthusiasts), in grey - looked immaculate - if only I had more room, would love one!

17th May 2018, 21:14	#9
minimutly Posted a thing or two mg zt Join Date: Mar 2014 Location: cardigan Posts: 1,087 Thanks: 28 Thanked 187 Times in 158 Posts	I don't want to rain on your parade, but the crumbly calliper may be as a result of the overheating, not the cause of it.... It has been known, and I've seen it myself, for the flexi hose to become restrictive, to the point it only allows flow one way, stopping the piston retracting, thereby causing the overheating issue. Hopefully not, in your case, but keep an ey on just in case.

18th May 2018, 16:51	#10
impvan Avid contributor ZT-T Join Date: Aug 2012 Location: In the trees, near Caernarfon... and frequently Aberdeenshire, and sometimes Romania.. Posts: 143 Thanks: 5 Thanked 36 Times in 29 Posts	My Mk3 Festa was the same - one of the brake flexi's became a one-way valve and would randomly stick 'on'.