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#1
13th August 2010, 06:06 PM
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Help needed with rattling calipers
Hello Gents / Ladies
My first post on the site! I have obtained a 1996 3.7 A8 (non quattro). I am extremely pleased with it except for one thing. The front brake calipers seem to have worn the pin they slide on so much that I can move them side to side by hand with little effort. A consequence of this is a rattle from both sides over bumps and rough ground. I have read a lot of the posts on this site and eliminated most of the other possible causes of the rattle. I am trying to get hold of new or remanufactured front calipers without any luck. I have just had a refund from my last effort as they cannot get hold of them after taking the order. Does anyone know of a good source? Is there a repair kit to replace the pin? I know that A8 parts can supply a used set, but I am trying to avoid a repeat. Any help would be appreciated. Martin Wood (working in Ireland, home in Devon) 
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#2
13th August 2010, 08:04 PM
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Rattling Caliper pt 2
I managed to get an old caliper from a breaker locally to look at, to see if I could repair it. I should have guessed from the fact that the breaker cut the flexible pipe - how are you supposed to separate the flexible pipe from the metal pipe on the caliper, without twisting the end off the metal pipe?
Can you get e replacement? Martin Wood 
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#3
13th August 2010, 08:30 PM
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You need a special brake pipe spanner to take the metal pipe off the caliper (there should be a nut there). and just use your existing one.
Though make sure you flush it properly, as you will get some air up there.
__________________
2010 Jag XF 3.0D Portfolio S I know.. I know.. 
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#4
13th August 2010, 09:27 PM
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Rattling Caliper
Thanks for the reply, but the problem I have found is disconnecting the metal pipe from either the caliper or from the flexible pipe at the other end.
The caliper I have been playing with is from a broken A8 younger than mine, and I have been unable to remove any of the bolts etc without twisting and breaking the metal pipe! If I do that with the one on the car I am stuck. I can get it all apart but at this rate I am going to need a replacement short metal brake pipe.
__________________
Martin Wood Rescue Helicopter Pilot Work in Ireland - Home in Devon 
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#5
16th August 2010, 07:16 AM
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Hi Martin i have had to change both my front calipers for the same reason. I can't remember the name of the company off hand although i think they were called Transhock (I will check though bill's at wk-end). 1 they just sent and i had to send them mine to get a deposit back i think £85 (after refund) and the other i had to send mine to them and they referb'd it as none in stock, 2 day turn around.
What company / s have you tried? Where are you in Devon?
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#6
20th August 2010, 12:44 PM
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Hi Martin,
Welcome to the forum. You can separate the flexible hose from the metal hose as they are separate items. You will have to get 2 open ended ring spanners and lotsa easeout oil and just go for it. You see what I mean from the picture.
__________________
Conan (the Librarian) Watch it if you dare Currently, 2000 S8, Merlin Purple, Leather Pack 1, Winter Pack 1, SPAX adjustable suspension, AP Racing 6 pot front caliper, 385mm fully floating disks, EBC Yellow Stuff Pads, Black Diamond grooved rear disks and predetor pads, D2 Doctors Brake Block. 1997 4.2 A8SQ - the Projekt. 12 years and ongoing! 1997 4.2 A8SQ - Ming Blue. Restoration sat waiting; saved from the Scrapyard 2003 C5 Allroad 4.2Q - Cobolt Blue. Towing car. Laid up awaiting manual conversion. 2005 C5 Allroad 2.5TDi FE - Grey - Workhorse. 2015 Q3QS SLine - Daytona Grey. Lots of extras! Long Haired Admirals cutter. Previously 2003 C5 A6 1.9TDI FWD - Loaner from D2 Doctor Lifex 1997 S8 - Ming Blue. Loaned out and written off. I loved that car. My first engine swap after cambelt failure. 1996 4.2 A8SQ - Ming Blue. 178k on a cambelt! Trader's 8. Delivered to A8Parts at Lifex. 2003 2.8 A8SQ - powder blueish. Fill in for a while. Sold on. 1998 1.8T A4 Avant FWD. Ming Blue (there's a theme here), PEX for the 97 S8. And a list of non VAG going back 40 years before I saw the light.
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#7
22nd August 2010, 05:31 PM
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Thanks for the help
Thanks a lot for the help / suggestions.
I got 2 calipers from a local VW and Audi breaker, down the road from where I work in Ireland. No matter how I tried, undoing the joint between the metal and flexible pipe on the caliper resulted in twisting off the end of the metal pipe. Luckily I was able to drill out the fittings and use them again with new pipes manufactured locally. So far the rattle has gone. Fingers crossed! As part of the process I bought a set of Goodrich braided hoses. So far I have not had the guts to try and separate the metal / flexible pipes at the inside end. If those break it will not be quite so easy to fix.
__________________
Martin Wood Rescue Helicopter Pilot Work in Ireland - Home in Devon
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#8
22nd August 2010, 05:34 PM
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Where in Devon - Dezzy
Hi Dezzy, home is on the edge of Exmoor NE of Barnstaple. My aquisition will be there for the first time next week as I will be getting the MOT updated.
__________________
Martin Wood Rescue Helicopter Pilot Work in Ireland - Home in Devon
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#9
23rd August 2010, 11:30 AM
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how often do you have to rescue a helicopter pilot?
__________________
Conan (the Librarian) Watch it if you dare Currently, 2000 S8, Merlin Purple, Leather Pack 1, Winter Pack 1, SPAX adjustable suspension, AP Racing 6 pot front caliper, 385mm fully floating disks, EBC Yellow Stuff Pads, Black Diamond grooved rear disks and predetor pads, D2 Doctors Brake Block. 1997 4.2 A8SQ - the Projekt. 12 years and ongoing! 1997 4.2 A8SQ - Ming Blue. Restoration sat waiting; saved from the Scrapyard 2003 C5 Allroad 4.2Q - Cobolt Blue. Towing car. Laid up awaiting manual conversion. 2005 C5 Allroad 2.5TDi FE - Grey - Workhorse. 2015 Q3QS SLine - Daytona Grey. Lots of extras! Long Haired Admirals cutter. Previously 2003 C5 A6 1.9TDI FWD - Loaner from D2 Doctor Lifex 1997 S8 - Ming Blue. Loaned out and written off. I loved that car. My first engine swap after cambelt failure. 1996 4.2 A8SQ - Ming Blue. 178k on a cambelt! Trader's 8. Delivered to A8Parts at Lifex. 2003 2.8 A8SQ - powder blueish. Fill in for a while. Sold on. 1998 1.8T A4 Avant FWD. Ming Blue (there's a theme here), PEX for the 97 S8. And a list of non VAG going back 40 years before I saw the light.
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#10
23rd August 2010, 05:26 PM
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Quote:
Ok so i've not seen it about yet then. There seems to be a few popping up in the area. Don't worry i'm not an 8 spotter just keep seeing them about there was a S8 in Combe Martin last night with a S8 *** plate. Martin your name is familiar, did you fly Seaking whirlygigs at Chivenor?
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