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| brake calliper rebuild. https://www.ausmini.com/forums/viewtopic.php?f=2&t=37545 |
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| Author: | sociallydisabled [ Thu Nov 08, 2007 8:05 pm ] |
| Post subject: | brake calliper rebuild. |
okay so got all the bits, spent an hour and a half cleaning the rust out of the bored of the callipers, luckily surface rust, my question is how clean do i need to get them ive scrubbed and secrubbed, and theres still a teeny bit fo grime in there? what did you guys use to clean them, here are some pics of the worst spots 
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| Author: | Harley [ Thu Nov 08, 2007 8:33 pm ] |
| Post subject: | |
I've rebuilt a few calipers before, I get the bead blasted each time. Before assembly, I wipe the bored out with a grease remover of some kind. Brake systems don't like dirt. 
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| Author: | sociallydisabled [ Thu Nov 08, 2007 8:36 pm ] |
| Post subject: | |
whats bead blasting worth? roughly, and do i need it, im not too worried about the outsides, just the insides, its clean but there are still marks from where the dirt used to be. |
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| Author: | Harley [ Thu Nov 08, 2007 8:39 pm ] |
| Post subject: | |
Just ask around. The place doesn't have to be a brake mob. I had the local auto electricians do it. Cost me maybe $30 for the calipers and a few other bits n bobs. |
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| Author: | Mick [ Thu Nov 08, 2007 8:39 pm ] |
| Post subject: | |
Yeah, no dirt is the biggie. Wash it out in whatever you need to clean the calliper up, maybe even wire brush it to remove the rest of the grime and paint on the outside. But make sure you remove all the debris from inside before you assemble them. The pistons don't use the bore here as a seal, it is the contact between the seal and the piston which is important, so just clean the rest out and make sure your pistons are in good clean shape. Methylated spirits is the easiest option unless you like spending cash on brake solvents in a can. Wash it down in this before you assemble. Use some rubber grease or fresh brake fluid to lube it up as you press it all together. If storing for longer, use rubber grease to prevent any more corrosion. |
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| Author: | sociallydisabled [ Thu Nov 08, 2007 8:42 pm ] |
| Post subject: | |
dont buy brake solvents, that is the calliper after a whole can  carby cleaner works bettter which i found when i was packing up. thanks for the help guys. might leave em apart until i need to use em to stop corrosion at all
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| Author: | DTrain [ Thu Nov 08, 2007 8:49 pm ] |
| Post subject: | |
why not give them a good wire brushing and coat in a nice colour of caliper paint while they are apart |
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| Author: | sociallydisabled [ Thu Nov 08, 2007 8:51 pm ] |
| Post subject: | |
thinkin about it. ill see how i go over the weekend |
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| Author: | sgc [ Thu Nov 08, 2007 8:54 pm ] |
| Post subject: | |
Do it, you won't regret it 
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| Author: | sociallydisabled [ Thu Nov 08, 2007 8:57 pm ] |
| Post subject: | |
lol yeah ill regret it if i dont
is it worth getting my disks reground or just get new ones? |
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| Author: | sgc [ Thu Nov 08, 2007 8:59 pm ] |
| Post subject: | |
Depends what thickness you've got now. If you've got enough, you won't gain anything by buying new discs vs machining the ones you've got. |
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| Author: | sociallydisabled [ Thu Nov 08, 2007 9:01 pm ] |
| Post subject: | |
true cept for looks, but its gonna be a dily so they will look the same eventually anyway |
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| Author: | sgc [ Thu Nov 08, 2007 9:03 pm ] |
| Post subject: | |
You're not going to see the rotors.. only the calipers. Get some paint on them and save your $$$ on the discs
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| Author: | sociallydisabled [ Thu Nov 08, 2007 9:04 pm ] |
| Post subject: | |
sounds like some good advice pics up monday
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| Author: | Mike_Byron [ Thu Nov 08, 2007 9:44 pm ] |
| Post subject: | |
Mini rotors are quite a different proposition to rotors off a commodore or a falcon. If the crummydore or foulcan rotors are worn and scored its actually cheaper to buy new ones (at $60 a rotor ) than to send them off for machining. New mini rotors cost a bit more and that tips the balance in favour of machining scored or worn rotors. But having said that - if they are worn too far they will neeed replacing. Mike |
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