John.Taylor
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| posted on 30/8/06 at 08:37 PM |
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In trouble rebuilding Sierra rear brake calipers
I'm rebuilding my rear calipers with a new seal kit from Bigg Red (ebay £20) but I can't get the pushrod out of the caliper in order to
release the handbrake shaft and renew the seals. I have got to the bit in the Haynes Manual (Chapter 10, Section 7, Point 15) which says...
..."A long thin pair of circlip pliers will now be required to release the key plate retaining circlip from the the caliper bore. With the
circlip removed the pushrod and key plate can be pulled out"
I've got the key plate retaining circlip out and the key plate itself, but the pushrod won't pull out. It's loose to wobble about
but won't even pull out when I've screwed the piston adjuster nut onto the pushrod and tried pulling it with a pair of pliers. Is there
something that I'm missing??
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mookaloid
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| posted on 30/8/06 at 09:17 PM |
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yep, you should have just exchanged them for properly reconditioned ones
Not worth wasting your time with them.
IMHO of course
Cheers
Mark
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Chippy
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| posted on 30/8/06 at 10:10 PM |
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I may be wrong, but I think you have to take the handbrake lever out to get centre rod out. Its bloody years since I pulled one appart, but that bit
rings a bell. Hope that helps. Ray.
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John.Taylor
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| posted on 31/8/06 at 07:20 AM |
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I began to think that this might be the case, but it appears that you have to remove the pushrod in order to rebove the handbrake shaft?
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mackei23b
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| posted on 31/8/06 at 08:05 AM |
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Nothing missing, I had that on one of mine, after the circlip is out it should pull out, though the key plate can stick, I used a small precision
scew driver to move the key plate to unstick it.
You can use this either at the bottom of the bore by the keyplate, or between the pushrod and the key plate.
Just be carefull not to score the bore where any seals may come into contact, no scoring at all preferable, just a bit of care and patience.
Try taking the other caliper appart, you may find this one releases straight away and you can see how it is designed.
Cheers
Ian
Hope this helps.
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John.Taylor
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| posted on 1/9/06 at 08:43 AM |
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I tried all sorts of things and was ready to chuck the calipers in the bin and buy some reconditioned ones when I decided to have one last all or
nothing go. I took the nut out of the piston, screwed it onto the shaft (pushrod according to Heynes) leaving a bit protruding with which to clamp it
into the vice, and pulled with all my might. It felt loose so I got a piece of wood and a lump hammer and gave it a good smack after the third hit,
bingo, the caliper flew across the work bench! Turns out that the seals were totally shot, trapping the shaft - no wonder the brakes were binding!
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NS Dev
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| posted on 1/9/06 at 02:30 PM |
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quote:
Originally posted by mookaloid
yep, you should have just exchanged them for properly reconditioned ones
Not worth wasting your time with them.
IMHO of course
Cheers
Mark
ditto, been there, done that, got the penny wise pound foolish t shirt!
Retro RWD is the way forward...........automotive fabrication, car restoration, sheetmetal work, engine conversion
retro car restoration and tuning
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