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Taking apart 3pc-ers

How to split and rebuild them. Where to find spares. Want gold bolts, wider rims, flat caps etc.

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Re: Taking apart 3pc-ers

Postby Dito » 21 Jun 2010 13:13

guys i got 3 piece BR-Rs and wanting to refurb them. i cant find definate answer either its ok to not taking the tyre off or i have to take it off. any helps? can it be done with out taking the tyre off and just deflate the tyre?

Thanks.
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Re: Taking apart 3pc-ers

Postby Purple Beast » 21 Jun 2010 16:39

Hi

to get a perfect finish if you polish the lips you has to put the screws out to split the wheels.

For that get the tire off.

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Re: Taking apart 3pc-ers

Postby Dito » 21 Jun 2010 22:30

ah okay... thanks man and does anyone know where i can get the tools to get the rim bolts off?

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Thanks again
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Re: Taking apart 3pc-ers

Postby Sergey » 28 Jun 2010 17:06

the bolt is often 8mm and nut is 10mm, standard 12pt double-hexagonal sockets for hex cap screws, like 99c at local hardware store (i mean... in europe, might be harder to find in USA).

8pt double-square sockets is harder to find these days. OZ racing 10pt bolt tools aren't cheap. you will find all mentioned tools from http://www.titanium-touch.de/shop

(i have my grandfathers toolbox from 60's, its excellent for rim stuff, all types of sockets 8, 10 & 12pt in millimeters and inches)
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Re: Taking apart 3pc-ers

Postby FATjag » 07 Nov 2010 17:43

Ive recently bought some Speedline Mistrals (think thats what they are called) and its my first time im taking apart a split rim. My question is can i simply unbolt the nuts from the front of the wheel? Reason i ask is because the nuts also have bolts on the back of them. Is this normal?
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Re: Taking apart 3pc-ers

Postby Purple Beast » 07 Nov 2010 20:06

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Re: Taking apart 3pc-ers

Postby Sergey » 08 Nov 2010 02:40

FATjag wrote:Ive recently bought some Speedline Mistrals (think thats what they are called) and its my first time im taking apart a split rim. My question is can i simply unbolt the nuts from the front of the wheel? Reason i ask is because the nuts also have bolts on the back of them. Is this normal?


Image

My Speedlines had Torx bolt and normal hex-nut on the other side. Klick for bigger pic. Note the sealing ring and rubber sealer. These are assembled without glue.

ImageImage
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Re: Taking apart 3pc-ers

Postby FATjag » 08 Nov 2010 15:32

Yup. Thats exactley how mine are. 11mm hex nut on the back and a 9mm bolt on the face. Tried un-doing them last night and only succeeded with taking 2 off!! I can actually see the seal/gasket between the barrell and dish.

Are centre caps for these hard to find?
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Re: Taking apart 3pc-ers

Postby Sergey » 13 Nov 2010 13:47

i didn't find any, so i bought 5mm thick round discs of aluminium and drilled a hole in them and in the wheel, threaded it and fastened with stainless m5 machine screw. Then painted matching color.
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Re: Taking apart 3pc-ers

Postby Bob.the.train » 07 Dec 2010 11:08

From those pics, they look exactly like Speedline Aliseos which I am in the process of re-furbing. No after pics yet but may post when done. I am told soaking in vinegar overnight helps with the bolts which I will re-use. (40 x 4 x £1.50 each = too much!)
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Re: Taking apart 3pc-ers

Postby Sergey » 09 Dec 2010 03:46

vinegar helps but it takes one month... citric acid in 6% solution is great if water is approx 50-60c warm, works with cold water too. It really needs only 20 minutes to achieve same what vinegar makes in 10 weeks. in pharmacy you can get it

video of it, you see how fast citric acid loosens some big rust chunks in seconds. The vid is within the first minute. this will not damage solid steel, bites only in rust. And the best part, it is completeley harmless, you can eat it with spoon.

http://www.youtube.com/watch?v=4dq9bY5bVn8" onclick="window.open(this.href);return false;

and some before and after vinegar soaking (4 weeks did not solve all rust although i steelbrushed them) the after-pic is after 8 weeks in vinegar
ImageImage

And the residue:
Image

ofcourse there is lye too. it removes everything in minutes. even thick varnish. But be careful, it eats fast aluminium... and flesh too.
Last edited by Sergey on 16 May 2013 12:06, edited 2 times in total.
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Re: Taking apart 3pc-ers

Postby Bob.the.train » 09 Dec 2010 11:46

Thanks Sergey, I'll try Citric. What proportions do you use if it is powder you are using? TIA Still waiting for an Abrasive and Polishing kit after one week! This bl**dy weather.
PS Where can you buy the stuff? TIA
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Re: Taking apart 3pc-ers

Postby Sergey » 15 Dec 2010 21:59

it looks and feels like granulated white sugar. I use 6% solution that is 60 grams citric and 940 grams of water ;) ... and i haven't been so thorough and did measure water one liter, not 940 grams... should i say 2 ounces in a quart of water!? Im not sure with those stoneage measures.

can't tell where you can find it unless you're in sweden or finland :roll:
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Re: Taking apart 3pc-ers

Postby Bob.the.train » 16 Dec 2010 10:44

Thanks Sergey, I'll try that.
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Re: Taking apart 3pc-ers

Postby Sergey » 16 May 2013 11:58

Btw, the citric acid is sold in buckets 5kg size in agricultural hardwarestores for 15 euros. It is fed to pigs to prevent diarhea :lol: the 5kg bucket lasts forever. i have refurbished old brake parts and whole bunch of old carparts with that bucket and still have half of it left. I made homewine too, and put that in for stabilizing it :idea:
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