Rose Joint Adjustable Camber Conversion for your Seven
Rose Joint Adjustable Camber Conversion for your Seven
Author
Discussion

EFA

Original Poster:

1,666 posts

285 months

Wednesday 20th October 2010
quotequote all
A second round of these in the Bulk Buy section of Blatchat. You can Blatmail without being a member of the L7C.

Noger

7,117 posts

271 months

Thursday 21st October 2010
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Why do I need one ?

Nicodema

259 posts

240 months

Thursday 21st October 2010
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Need, what's with need? They're pretty. Useful for tweeking camber for two reasons, 1) you don't need to split a taper to make an adjustment and 2) You get twice as many positions available to you as the rose joint can be used either way up.

Did I mention them being pretty?

e2a: Downsides include being more prone to ingress of dirt etc, making them less suitable for all weather use.

Edited by Nicodema on Thursday 21st October 16:49

mickrick

3,747 posts

195 months

Thursday 21st October 2010
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And you'll need to drill the taper out of the top of your upright. So no going back to a standard ball joint.

Noger

7,117 posts

271 months

Thursday 21st October 2010
quotequote all
Pretty ? Why didn't you say smile

Can I get a carbon fibre one ?

Alistair1537

25 posts

184 months

Thursday 21st October 2010
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Hello - I'm new to the forum - please give me some more information regarding the rose-joint conversion - If I am correct, you drill out the taper for a bolt? Wouldn't this cause play in the set-up? I thought the taper was there for a good reason - to keep the linkage as tight as possible?

By replacing the taper with straight bolt I would think you would immediately have play that would feel loose in terms steering feel (similar to worn tie-rod ends) Or is the bolt pressed in? ie no play?

EFA

Original Poster:

1,666 posts

285 months

Saturday 23rd October 2010
quotequote all
The design uses an EN8 sleeve which supports the joint and fits the existing taper perfectly. No need to drill.

More info is here http://www.blatchat.com/t.asp?id=194149

I'll post some pics when the first batch (which have sold out) are made. Now collecting orders for batch 2.

Noger, they give twice the adjustability of camber - means you can adjust your camber in 0.35 degree increments instead of 0.70 degree. Thast a big difference. Won't fit your car unless you've moderised it since you got it.

Edited by EFA on Saturday 23 October 20:39

Noger

7,117 posts

271 months

Sunday 24th October 2010
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Modernised smile there has been a bit !

So is this a fairly easy swap ?

mickrick

3,747 posts

195 months

Sunday 24th October 2010
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Ah.. Maybe you should have said sleeve, instead of pin? Nice idea.
I'd be intersted to know manufacturer, and what the code of the rod end is Arnie? Just for comparison, on weight, material etc.
I'm almost interested...

EFA

Original Poster:

1,666 posts

285 months

Sunday 24th October 2010
quotequote all
Mickrick,

Version 1.0 was going to use a pin. The drawing is now at Version 3.4!

The rosejoints are not an off the shelf item. I am getting them specially made. Specs are on BC.

Noger, if you have the tubular upper wishbone, these should only take an hour or so to fit both sides, basic tools and a splitter to get the old joint off.


Edited by EFA on Sunday 24th October 22:55

Noger

7,117 posts

271 months

Monday 25th October 2010
quotequote all
Yes, converted to "new" double + orange ARB. Put me down for one. Hopefully it will take Chris less than an our, the thing needs a full suspension set up anyway, so may as well take it to bits one more time smile

EFA

Original Poster:

1,666 posts

285 months

Tuesday 26th October 2010
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Noger, Can you send me your email address please. I have some forms etc for you.

allen l

443 posts

200 months

Wednesday 27th October 2010
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I'm in for a set

Have an SV model if that's important to know...

EFA

Original Poster:

1,666 posts

285 months

Wednesday 27th October 2010
quotequote all
allen I, you have PM.

mickrick

3,747 posts

195 months

Friday 29th October 2010
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"HT securing bolt and spring washer (zinc pasivated)."

When you state HT, which grading is it, SAE, ANSI, ISO? and what is the tensile strength?

Can I sue you if I survive a failure?

Cheers,
Mick.smile

EFA

Original Poster:

1,666 posts

285 months

Friday 29th October 2010
quotequote all
Mick,

The bolt is perfectly up to the job and is an ISO Property Class 8.8 There is not a plated 10.9 bolt made in the size in question, and outsourcing the plating and de-embritteling is a far greater risk.

When you sign the disclaimer you will understand it is impossible to sustain any significant injury if the bolt fails in any case.



Edited by EFA on Friday 29th October 21:08

EFA

Original Poster:

1,666 posts

285 months

Sunday 31st October 2010
quotequote all
Only 14 sets left. I'm unlikely to do this again.

Noger

7,117 posts

271 months

Thursday 4th November 2010
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Will sort at the weekend.

EFA

Original Poster:

1,666 posts

285 months

Thursday 4th November 2010
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Only 11 sets left now....

sfaulds

653 posts

300 months

Friday 5th November 2010
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EFA said:
Noger, they give twice the adjustability of camber - means you can adjust your camber in 0.35 degree increments instead of 0.70 degree. Thast a big difference.
A standard balljoint allows increments of around 0.3 degrees.