v8kid
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| posted on 10/8/10 at 03:32 PM |
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Why have both RU7 and RU8?
I'm probably being a bit dim and risk embarrassing myself but in the book drawings of an independent rear upright the part the sierra bearing
carrier bolts to is a 10mm thick part numbered RU8.
On the upright there is another 10mm thick part numbered RU7 which is welded to the upright.
Why is RU8 needed? Its heavy and does not appear to add to the rigidity.
I see both parts have different internal diameters but on my Lobro driveshafts there are no steps or projections requiring this. Quite the reverse the
additional 10m width interferes with the abd sensor location.
Am I missing the obvious here?
[Edited on 10-8-10 by v8kid]
You'd be surprised how quickly the sales people at B&Q try and assist you after ignoring you for the past 15 minutes when you try and start a
chainsaw
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deezee
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| posted on 10/8/10 at 03:40 PM |
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RU7 is effectively a spacer so the suspension geometry etc all sits the correct dimensions from the hub. You could space out RU8 using an alternative
method, or redesign the hub.
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v8kid
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| posted on 10/8/10 at 03:43 PM |
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Ta. It's always the simple (and obvious!) reasons that catch me out.
I take it there are no probs making it out of ally then.
Cheers
David
You'd be surprised how quickly the sales people at B&Q try and assist you after ignoring you for the past 15 minutes when you try and start a
chainsaw
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Liam
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| posted on 10/8/10 at 04:15 PM |
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Two slabs of 10mm plate! Mmmm nice. Sounds like lazy design of the upright if you ask me. I'm sure you can do better.
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v8kid
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| posted on 10/8/10 at 04:25 PM |
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I still can't really believe it but it seems a viable explanation.
Did a quick stress calc (back of fag packet type) and RU2 seems the weak link so I might not loose any weight overall. Apart from that and the bottom
mounting holes being too low the kits of parts available take a lot of cutting and shaping work out - hence the keenness to utilise if possible
Cheers guys
You'd be surprised how quickly the sales people at B&Q try and assist you after ignoring you for the past 15 minutes when you try and start a
chainsaw
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interestedparty
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| posted on 10/8/10 at 06:45 PM |
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Are you building a Haynes Roadster? Have you tried this question on the Haynes forum?
As some day it may happen that a victim must be found,
I've got a little list-- I've got a little list
Of society offenders who might well be underground,
And who never would be missed-- who never would be missed!
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v8kid
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| posted on 11/8/10 at 08:35 AM |
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Ta for the heads up Interested. posted there and see what comes of it.
David
You'd be surprised how quickly the sales people at B&Q try and assist you after ignoring you for the past 15 minutes when you try and start a
chainsaw
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v8kid
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| posted on 11/8/10 at 02:17 PM |
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Took all of half a day to get answer on Haynes forum!
There is a recess in the drum backplate to suit RU8 and it was left in as a generic design.
Not required for disc brake just make the tube longer
You'd be surprised how quickly the sales people at B&Q try and assist you after ignoring you for the past 15 minutes when you try and start a
chainsaw
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