yellowcab
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| posted on 14/7/12 at 02:18 PM |
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How do you push rear sierra caliper piston back in?
Brute force with grips and pushing, or are they wind back?
Thanksq
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Ben_Copeland
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| posted on 14/7/12 at 02:22 PM |
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They wind back, but you have to push at the same time.
Ben
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Jon Ison
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| posted on 14/7/12 at 02:22 PM |
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Pressure and turn, I use the angle grinder spanner to do it.
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Minicooper
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| posted on 14/7/12 at 02:24 PM |
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Push them in first, then if you still haven't got the clearence wind them in, I used an angle grinder tightening tool. On mine one wound in a
treat, the other just turned the hole lot round and I know it wasn't fully home so still trying to work out how to do that one
Cheers
David
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yellowcab
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| posted on 14/7/12 at 02:28 PM |
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Fastest most helpful responses ever on LCB!
thanks chaps  )
Whilst I have your attention, I ordered new uprights from MK, and the bolts that hold the caliper on can't get through the holes because of the
welds that hold the rear upright together, I guess I have to grind my new uprights back to bare metal after paying for them to be powder coated :-(
Anyone seen or heard of that needed to have web done before?
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Ben_Copeland
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| posted on 14/7/12 at 02:36 PM |
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I'd send them back and get MK to sort it plus repowdercoat.
Or run a drill down them... the powder coat will get knocked off by the bolts anyway
[Edited on 14/7/12 by Ben_Copeland]
Ben
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Z20LET Astra Turbo, into a Haynes
Roadster
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yellowcab
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| posted on 14/7/12 at 02:40 PM |
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Thanks Ben... how are you anyway, long time no speak... say... 2004?
I may not have explained myself properly, I'll take a pic... (shock horror from me huh)
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Ben_Copeland
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| posted on 14/7/12 at 02:42 PM |
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Really 2004? Sorry but how do i know you?
Ah oliver hewitt, name rings a bell. But you might have to remind my why
[Edited on 14/7/12 by Ben_Copeland]
Ben
Locost Map on Google Maps
Z20LET Astra Turbo, into a Haynes
Roadster
Enter Your Details Here
http://www.facebook.com/EquinoxProducts for all your bodywork needs!
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mookaloid
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| posted on 14/7/12 at 02:44 PM |
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I got one of these Caliper
wind back tool kit last year - one of the best things I ever did
"That thing you're thinking - it wont be that."
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yellowcab
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| posted on 14/7/12 at 02:46 PM |
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Thanks Mookaloid - I'll have a look into investing in one of those... but in the mean time, will try the angle grinder tool technique as I have
a track day next weekend
Ben, yes 'OllyHewitt' from MIG days... I used the forum between 2001 and 2004...
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Ben_Copeland
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| posted on 14/7/12 at 02:51 PM |
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quote:
Originally posted by yellowcab
Ben, yes 'OllyHewitt' from MIG days... I used the forum between 2001 and 2004...
Blimey, long time ago ! Welcome to the wonderful world of Locostbuilders 
Ben
Locost Map on Google Maps
Z20LET Astra Turbo, into a Haynes
Roadster
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yellowcab
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| posted on 14/7/12 at 02:52 PM |
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Ben...
This top calliper bolt hole here...
Looking through, you can see the shoulder/ weld of the upright, and its so close to the calliper bracket that you can't get the bolt in
straight...
Silhouette to show what I mean, granted I'm now using a allen headed bolt now so the radius of the bolt head is smaller, but it still fouls
I've ground the welds back, so it just passes through, but not particularly happy about it
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mookaloid
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| posted on 14/7/12 at 02:53 PM |
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quote:
Originally posted by yellowcab
Thanks Mookaloid - I'll have a look into investing in one of those... but in the mean time, will try the angle grinder tool technique as I have
a track day next weekend
No Problem - it isn't absolutely necessary but after years faffing about with angle grinder tools, circlip pliers, G-cramps and homemade bits
and pieces using that tool kit was a complete revelation.
"That thing you're thinking - it wont be that."
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britishtrident
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| posted on 14/7/12 at 02:57 PM |
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N.B. Any tension must be off the the handbrake cable before you wind the calliper piston back.
The press type tool is over kill.
The tool for the job is called a calliper wind back cube it is universal for just about any rear caliper type and simply fits on a 3/8"
drive socket set and can be found for about £6.00 (do a search on Amazon or eBay)
Draper 52334 3/8-Inch Square Drive Rear Caliper Wind Back Cube
[Edited on 14/7/12 by britishtrident]
[I] “ What use our work, Bennet, if we cannot care for those we love? .”
― From BBC TV/Amazon's Ripper Street.
[/I]
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yellowcab
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| posted on 14/7/12 at 03:02 PM |
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Thanks guys - yes the handbrake is currently off, and the top of the brake reservoir is also off (probably a myth that I heard that you must remove
this?)
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yellowcab
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| posted on 14/7/12 at 03:02 PM |
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Thanks for the replies btw - the progress on the car is over here btw:
http://www.locostbuilders.co.uk/forum/23/viewthread.php?tid=167149
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Ben_Copeland
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| posted on 14/7/12 at 03:04 PM |
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I would of taken the four bolts out of the hub/upright so it could angle the hub enough to get bolt in.
[Edited on 14/7/12 by Ben_Copeland]
Ben
Locost Map on Google Maps
Z20LET Astra Turbo, into a Haynes
Roadster
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yellowcab
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| posted on 14/7/12 at 03:07 PM |
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I'm glad you've said that...
I did exactly that, so I loosened the four bolts, loosened the hub carrier... but the calliper bracket on...
did the four bolts back up... but then the brake disk needs to go on, which is won't because of the calliper bracket - doh!
unless I'm missing something glaringly obvious? lol
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Ben_Copeland
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| posted on 14/7/12 at 03:09 PM |
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quote:
Originally posted by yellowcab
I'm glad you've said that...
I did exactly that, so I loosened the four bolts, loosened the hub carrier... but the calliper bracket on...
did the four bolts back up... but then the brake disk needs to go on, which is won't because of the calliper bracket - doh!
unless I'm missing something glaringly obvious? lol
No i would of just put the bolt in, there should just be space to then put disc on, followed by caliper bracket
Or just one bolt into caliper bracket, then twist bracket up and out the way of the disc
[Edited on 14/7/12 by Ben_Copeland]
Ben
Locost Map on Google Maps
Z20LET Astra Turbo, into a Haynes
Roadster
Enter Your Details Here
http://www.facebook.com/EquinoxProducts for all your bodywork needs!
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yellowcab
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| posted on 14/7/12 at 03:16 PM |
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pahhh you've been in the game too long, clearly.
you see - the correct way is what I did last night, faff around for about 3 hours, getting the 'ump, getting cold, sat on the garage floor
listening to Classical FM trying to keep calm, whilst hands wrapped in grease, not having a clue what you're doing or the correct way because of
no haynes manual
i left the garage only half doing one side, which means i can do the other side 'correctly' (your way, lol)
oh, and to top it off, I did that thing of starting another job on the car, fitting the clutch pedal again, getting in the car, testing the clutch
pedal, thinking "ahhh thats better, much lighter", then pressing the brake pedal and remembering the rear brakes are off, and watching to
kick myself in my face because of my stupidity
hence the reason for needing to know how to wind the rear pistons back
/that is all / justsayin'
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