 | Home > Maintenance & Modifications > Callipers Rebuild. Tips fitting piston seal retaining ring? |
 
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| ibexman Member Since: 13 Dec 2008 Location: Essex Posts: 2955  
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Buy new calipers your life depends on it
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20th Apr 2016 4:34pm |
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| dorsetsmith Member Since: 30 Oct 2011 Location: South West Posts: 4554 |
all good practise to repairs and or replace in pairs as one side will brake uneven and will pull to one side
http://www.defender2.net/forum/topic45538.html |
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20th Apr 2016 4:53pm |
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| danridge Member Since: 28 May 2013 Location: Bath Posts: 438 
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The callipers are all serviceable and I am servicing all four corners.
I should have asked, does anyone have any tips for fitting the seals? the metal retaining ring/collar is very easy to bend. Thanks. |
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20th Apr 2016 5:01pm |
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| Fatboy Slim Member Since: 04 Feb 2008 Location: Bridgend Posts: 1006 
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Fit the seal into the ring first. I've got a bit of plate that I fit over the seal and then use a heel bar to press on top of the plate. Once you've got the knack they go in easy enough. It's one of those things I keep meaning to video as it's easier to show people than explain really
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20th Apr 2016 5:18pm |
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| Devon-Rover Member Since: 22 Jan 2015 Location: South Devon Posts: 922 
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Use Genuine Seals and retainers..
Clean the grooves in the caliper out very well so the new items fit. Use a little red rubber grease or a little bit of brake fluid as a lubricant. Use genuine seals and retainers Apply pressure using a flat edge across the retainer and gently work it evenly to get the retainer to pop in. As above it's easier to demonstrate than describe how to do it. I have rebuilt a few pairs of calipers in my past and haven't killed myself yet. 
Ohh yeah before I forget Use Genuine seals and retainers as they are made to a higher tolerance and fit much easier.  |
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20th Apr 2016 5:32pm |
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| Rickydodah Member Since: 14 Jul 2014 Location: East Sussex Posts: 1091 |
My tried and tested technique after scores of calipers rebuilds is: assemble the dirt seal into the ring, rubber grease should be applied which helps but does make them slippery little bl**ders. Position them loosely into the piston hole and put a small bit of plate over this assembly. Squeeze into position with a "G" clamp, it doesn't need much pressure, if it does then it's likely gone askew. Lubricate the piston with the rubber grease and it should need only finger pressure to push home through the dirt and fluid seals. This technique was shown to me at the Girling factory in the sixties when disc brakes were somewhat unusual and nobody really had any idea how to service them. It worked for me then and I've not found an easier way, if there is I'm happy to learn it. Good luck it's not difficult providing you keep everything clean, it's doesn't have to be diesel room clean but brake components are machined to fairly close tolerances and you don't need much muck to screw it up.
I started with nothing and still have most of it left! |
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20th Apr 2016 5:42pm |
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| Rickydodah Member Since: 14 Jul 2014 Location: East Sussex Posts: 1091 |
The use of genuine parts I also follow......not necessarily from a LR dealer but from the calipers maufacturer, e.g. AP Lockheed, Girling etc. I started with nothing and still have most of it left! |
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20th Apr 2016 5:45pm |
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| dorsetsmith Member Since: 30 Oct 2011 Location: South West Posts: 4554 |
Use Genuine Seals and retainers.. have had problems in past with parts of repair not fitting
17H8764L - BRAKE CALIPER INTERNAL SEALS RRC you will need there seal if you split them, not included in most rebuild kits Exclamation 6 QTY for both front and rear split rebuilds |
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20th Apr 2016 6:41pm |
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| danridge Member Since: 28 May 2013 Location: Bath Posts: 438
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Alas I've already order non-genuine parts but I did order additional as anticipated at least a couple of
 moments over the 6 pistons. Having read this (much appreciated) advice I fear I may be back ordering genuine parts tomorrow night
Thanks for the tips |
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20th Apr 2016 6:53pm |
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| Fatboy Slim Member Since: 04 Feb 2008 Location: Bridgend Posts: 1006
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Non genuine will be fine
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20th Apr 2016 7:02pm |
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| danridge Member Since: 28 May 2013 Location: Bath Posts: 438
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Thanks
Any tips for removing the old seal retainers? Should they just pop out with a small screwdriver? What Loctite product should be used to secure the caliper 13mm 12 point head bolts? |
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21st Apr 2016 7:32am |
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| Rickydodah Member Since: 14 Jul 2014 Location: East Sussex Posts: 1091 |
Old seals and retainers should just pry out. I would replace the caliper bolts as they come pre-coated with thread lock, they're about 60p each.
I started with nothing and still have most of it left! |
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21st Apr 2016 9:26am |
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| danridge Member Since: 28 May 2013 Location: Bath Posts: 438
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New bolts ordered thanks
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21st Apr 2016 11:38am |
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| danridge Member Since: 28 May 2013 Location: Bath Posts: 438
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Okay so the seal retaining rings are not popping out as I'd hoped. Seem to be corroded in. Any tips?
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21st Apr 2016 1:32pm |
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