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LH-UC The "double knuckle" (solid steering uni) conversion


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#26 _Squarepants_

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Posted 24 November 2011 - 08:22 PM

Ok did some googling and found this pic of a UC rack (which I assume has the same shaft as an LH/LX rack). I can now see the stepped down end you're talking about. So just to clarify, that stepped down end has no flat recess in it for the cotter pin? The flat recess is on the large part of the shaft. Therefore making it impossible to fit correctly without cutting off the stepped down section? I don't remember seeing this on mine, but I'm still keen to check it out.


Not to be picky but I don't think that's a UC rack. UC's don't have rubber mounting bushes, they have aluminium bushes.

#27 _CHOPPER_

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Posted 25 November 2011 - 08:42 AM

All of the UC racks I have removed haven't had aluminium bushes.

#28 ls2lxhatch

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Posted 25 November 2011 - 10:55 AM

LH/LX had rubber bushes.
A9X has an alloy version of the rubber bush, the mounting hole in the rack is the same as the LH/LX.
UC racks have a different mount with a steel crush tube.

This photo by Rorym shows LX (top) and UC (bottom) racks. The larger version of the photo is missing.
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Edited by ls2lxhatch, 25 November 2011 - 10:56 AM.


#29 _dagsy_

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Posted 26 April 2013 - 10:53 AM

would i be able to do this to a 4 cyl HB?



#30 tsn007

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Posted 31 October 2021 - 07:27 PM

sorry to did an old thread

 

i just fitted a new uni joint and steering coupling rag/rubber style

 

and have about 10mm play in the steering

 

should the rag coupling have any flex/movement in it

 

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#31 76lxhatch

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Posted 01 November 2021 - 03:46 AM

It will certainly have some movement, otherwise it would be no different to a solid joint. That seems a bit much especially for a brand new joint, it shouldn't really hit the safety lugs under normal operation (if it doesn't move that far when installed it may be fine). It can be difficult to get suitable rubber material, most appear to just use pieces of conveyor belt.



#32 Peter UC

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Posted 01 November 2021 - 12:03 PM

Double check the cotter pins are all the way home, sometimes a small misalignment or the pins slightly rotated in the bores will mean the nut tightens but the joint has slop.



#33 Statler

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Posted 01 November 2021 - 12:38 PM

I failed a rwc because of the factory play in the steering. 



#34 tsn007

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Posted 02 November 2021 - 06:20 PM

how much play is normal ?

 

i have between 10 & 15mm play either side, that was with the car on jacks



#35 axistr

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Posted 03 November 2021 - 07:15 AM

Hi Tony, up on jacks with no load on the steering you should have zero play. There is something wrong if you do. Drop it down on the ground and get someone to rock the steering wheel play and inspect where any movement is coming from.



#36 Statler

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Posted 03 November 2021 - 04:33 PM

Hi Tony, up on jacks with no load on the steering you should have zero play. There is something wrong if you do. Drop it down on the ground and get someone to rock the steering wheel play and inspect where any movement is coming from.

I'll bet that he has at least 1 or more cotter pins in the wrong sides.






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