Jaguar World Monthly Forum - Rear brake pads/discs

Brian Senior Member Offline Posts: 739 east anglia Gender:	Re: Rear brake pads/discs Reply #30 - 20.03.2012 at 18:23:49 Must admit I have never stripped and re-built a caliper using the old seals/dust boots, should be interesting to see if you have any leaks after a few miles. Brian
Back to top	1993 3.2 XJ40 & 1997 3.2 X300 executive IP Logged

covkid

Senior Member

Offline

Posts: 846
England
Gender: male

Re: Rear brake pads/discs
Reply #31 - 20.03.2012 at 19:36:01

Brian wrote on 20.03.2012 at 18:23:49:

Must admit I have never stripped and re-built a caliper using the old seals/dust boots, should be interesting to see if you have any leaks after a few miles.
Brian

Me neither. I figure that after going to all of the trouble of removing and stripping the caliper I would not begrudge the cost of a caliper seal kit - even from Jag they are only about 30 quid an axle.

Back to top

IP Logged

Leo_Denmark

Senior Member

Offline

Posts: 462
Middelfart Denmark.
Gender: male

Re: Rear brake pads/discs
Reply #32 - 20.03.2012 at 20:00:11

Brian wrote on 20.03.2012 at 18:23:49:

Must admit I have never stripped and re-built a caliper using the old seals/dust boots, should be interesting to see if you have any leaks after a few miles.
Brian

Me neither... Cheesy

I don't even bother to ask the nearest dealership 30 miles from here, if they have the parts in stock, and I need to get the car to it's MOT pretty quick.
Rubbers looked really fine, so I think there is a fair chance it will be OK. Otherwise I will have to spend an hour more taking it apart again and make a proper overhaul. I don't think it will take more time than that now everything has been disassembled and I know how to do it.

Back to top

Leo Jensen, Denmark XJ 40 3.2 1992 - Citroën 2CV 1975

IP Logged

C_Camden

Junior Member

Offline

1994 jaguar xj4 four litre

Posts: 81
Nr Evesham
Gender: male

Re: Rear brake pads/discs
Reply #33 - 20.03.2012 at 20:34:23

Leo_Denmark wrote on 20.03.2012 at 20:00:11:

Brian wrote on 20.03.2012 at 18:23:49:

Must admit I have never stripped and re-built a caliper using the old seals/dust boots, should be interesting to see if you have any leaks after a few miles.
Brian

Me neither... Cheesy

I don't even bother to ask the nearest dealership 30 miles from here, if they have the parts in stock, and I need to get the car to it's MOT pretty quick.
Rubbers looked really fine, so I think there is a fair chance it will be OK. Otherwise I will have to spend an hour more taking it apart again and make a proper overhaul. I don't think it will take more time than that now everything has been disassembled and I know how to do it.

Do a proper job or you may end up doing it twice as Brian has said.

Geoff Roll Eyes

Back to top

1000th member

IP Logged

Brian Senior Member Offline Posts: 739 east anglia Gender:	Re: Rear brake pads/discs Reply #34 - 20.03.2012 at 23:11:06 This may seem a silly question, but do they not have motor factors in Denmark ? I can get genuine parts ie ATE LUK BENDIX for German, Frence and Swedish cars at good prices off the shelf at GSF or Euro Car Parts no problem. Brian
Back to top	1993 3.2 XJ40 & 1997 3.2 X300 executive IP Logged

Leo_Denmark

Senior Member

Offline

Posts: 462
Middelfart Denmark.
Gender: male

Re: Rear brake pads/discs
Reply #35 - 21.03.2012 at 08:13:12

Sorry to have offended you all by deciding to reuse these rubbers.
There were no leaks before disassembly and I did not ruin the seals by pushing in the dirty pistons before removing them. I do therefore not see why these seals should not be just as good as before disassembly ?

What has changed ? The piston has of cause been out and therefore rotated and is in a new position lengthwise, but these pistons are VERY round and straight, so that should not mean anything.

I bet it will work. Otherwise I'm prepared to spend the time on an overhaul. I'm simply not prepared to wait 10 days to get an overhaul kit from UK...

Regarding avaiability of spares for Jags in Denmark: There are maybe 20-40 XJ40's in Denmark. Maybe 10 of them are used regularly. There is therefore zero stock of anything but oil and air filters here, and these parts cost 3-4 times UK prices. It's probably a lot easier to find similar parts to a rare Lamborghini from the sixties in UK... Cheesy

Back to top

Leo Jensen, Denmark XJ 40 3.2 1992 - Citroën 2CV 1975

IP Logged

XJ40S

Senior Member

Offline

Posts: 1908
Sheffield
Gender: male

Re: Rear brake pads/discs
Reply #36 - 21.03.2012 at 12:37:20

Just thought I would mention a problem I have so you can avoid it.
Last autumn i fitted new pds and discs all round to my 88 3.6. A few days ago I got a cronking noise when reversing and then it got worse following day. Car seemed a bit sluggish up hills also.
Upon stripping I found offside pads were worn to metal. The piston was not retracting properly and when I pushed it in it stuck firm and had to be pumped out with grease. It had been perfectly free when I replace pads & disks. What had happened was that a sharp bulge of rust had penetrated the dust boot when I pushed the piston back, over the winter salt and water had got in and corroded next to the between dust boot groove and into front of seal groove causing seal to jam on piston. When i fit the new seal / boot kit I will put a false piston in and sandblast the dust boot groove area.
Cheers

Back to top

1993 3.2 xj6

IP Logged

Leo_Denmark

Senior Member

Offline

Posts: 462
Middelfart Denmark.
Gender: male

Re: Rear brake pads/discs
Reply #37 - 21.03.2012 at 18:16:12

XJ40S wrote on 21.03.2012 at 12:37:20:

Just thought I would mention a problem I have so you can avoid it.
Last autumn i fitted new pds and discs all round to my 88 3.6. A few days ago I got a cronking noise when reversing and then it got worse following day. Car seemed a bit sluggish up hills also.
Upon stripping I found offside pads were worn to metal. The piston was not retracting properly and when I pushed it in it stuck firm and had to be pumped out with grease. It had been perfectly free when I replace pads & disks. What had happened was that a sharp bulge of rust had penetrated the dust boot when I pushed the piston back, over the winter salt and water had got in and corroded next to the between dust boot groove and into front of seal groove causing seal to jam on piston. When i fit the new seal / boot kit I will put a false piston in and sandblast the dust boot groove area.
Cheers

Thanks. Mine didn't seem to have a problem there. Discs and pads arrived today, and first testdrive showed no problems. So far so good... Cool

Back to top

Leo Jensen, Denmark XJ 40 3.2 1992 - Citroën 2CV 1975

IP Logged