tegwin
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| posted on 16/10/24 at 10:26 AM |
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Assembling spit rims - seal or not?
Finally getting my BBS RX2 wheels refurbed for my tintop.
They are two piece split - the outer rim is continuous so there is no issue with air leaking at a split join.
Question is - when I reassemble them should I use some kind of joining compound between the centre and the rim? Some videos on YouTube I see are
just assembled dry. Can see pros and cons for dry and sealed.. what are your thoughts?
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TimC
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| posted on 16/10/24 at 10:53 AM |
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I did with mine. I used the best clear RTV I could find. I had one leaker though and re-did it with grey polyurethane which solved the issue.
I just dug-out my old blog post here which perhaps isn't as helpful as I recall: https://timsmnr.blogspot.com/2013/05/because-youre-wurth-it.html
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Sam_68
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| posted on 16/10/24 at 11:15 AM |
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If the outer rim is continuous, what's the point? What would the sealant be sealing?
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westf27
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| posted on 16/10/24 at 12:56 PM |
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Could prevent corrosion in the joint caused by water ingress.
555
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nick205
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| posted on 16/10/24 at 01:00 PM |
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Correct me if I'm misunderstanding...
If the outer rim is continuous then how is it a split rim?
Surely what you have is a rim with the ability to fit different hub to rim sections (spokes)?
I can see that would allow you to alter the appearance and offset, but not the rim width.
If that's correct then I'm not sure what the sealant would be sealing.
Threadlock perhaps on the threaded fixings, but only in accordance with the wheel manufacturers instructions.
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tegwin
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| posted on 16/10/24 at 01:08 PM |
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Thanks for the reply.
Yes, they call it a split rim but I supposed technically that is not what they are... just two piece wheels.
Sealing would keep moisture out and prevent corrosion perhaps, but otherwise, no purpose.
Just dropped them at the powder coaters -I split the wheels 16 years ago and they have been sat in my shed pending refurb since then 
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Would the last person who leaves the country please switch off the lights and close the door!
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coyoteboy
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| posted on 16/10/24 at 01:45 PM |
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Last time I had to take apart a two piece wheel which had been RTVd together I nearly destroyed it.
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cliftyhanger
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| posted on 16/10/24 at 03:57 PM |
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I would want a dry joint in there, not sure I would even want powder coat or paint. The 2 surfaces need to be tigh together, with no chance to
fret.
If you really want to seal it, i would be finding a VERY thin product. Wellseal may work.
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scudderfish
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| posted on 16/10/24 at 05:16 PM |
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Going slightly off topic, what problem do split rims solve? Why would you choose them over regular wheels?
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tegwin
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| posted on 16/10/24 at 06:37 PM |
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quote:
Originally posted by scudderfish
Going slightly off topic, what problem do split rims solve? Why would you choose them over regular wheels?
In all honesty, it’s mostly cause it looks cool I suspect.
It does allow you to use different materials and manufacturing processes which could make the wheel lighter or stronger.
If you were experimenting you could also have different offsets and hole patterns too.
Mine were factory fit on a 2001 polo GTI. Heck they have taken some abuse over the years!
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Would the last person who leaves the country please switch off the lights and close the door!
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