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 Post subject: Steering rack ratio
PostPosted: Tue May 26, 2009 11:15 am 
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998cc
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Location: Christchurch New Zealand
Hi guys,
In 1966, were standard Mini steering racks and Cooper S ones the same ratio? I want to do up a spare rack for my S and I have a spare 850 one to work with.

Regards
Al


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 Post subject:
PostPosted: Tue May 26, 2009 11:20 am 
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1360cc
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Somebody will correct me but I believe all Aussie ones are the same.
It's the UK cars that had different versions.


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PostPosted: Tue May 26, 2009 11:25 am 
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I believe this is correct and ours is considered a quick rack compaired to the Uk one's

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 Post subject:
PostPosted: Tue May 26, 2009 11:29 am 
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848cc
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i found it cheaper to buy a new rack than have one recoed.


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 Post subject:
PostPosted: Tue May 26, 2009 12:05 pm 
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1360cc
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Maybe so, but I'll bet a reco'd rack lasts ten times longer than a modern new one! :lol:


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 Post subject:
PostPosted: Tue May 26, 2009 12:25 pm 
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religious status
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Location: near Baulkham Hills, NSW
Oz racks were all 2.3 turns lock to lock as were MK1 UK racks.
UK Mk2 on are 2.7, BUT they have a tighter turning circle. ie there are more teeth on the rack. Also MK2> steering arms are a different angle.
Rack ratio is about the same.

Oz rack itself is 7/8" diameter (UK is 13/16") so most UK parts don't fit.
But parts are available locally still.

I prefer Oz racks. Adjust them properly and use 90EP oil not grease, they will last many years. Change the boots if you get an oil leak.
My 1970 rack has been done up once in the last 39 years.

The later Oz Clubby racks were the same, but Leyland put grease in them instead. It dries out then no lube. I have scrapped many due to this- I have no idea what the grease spec was when they did it.
The rack maker (Cam Gears) always recommended oil be used, they said it's OK to top up grease filled racks with oil.

<edit> was a typo in rack sizes

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Last edited by drmini in aust on Wed May 27, 2009 10:42 am, edited 1 time in total.

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 Post subject:
PostPosted: Tue May 26, 2009 1:38 pm 
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998cc
998cc

Joined: Wed Sep 13, 2006 7:26 am
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Location: Christchurch New Zealand
drmini in aust wrote:
Oz racks were all 2.3 turns lock to lock as were MK1 UK racks.
UK Mk2 on are 2.7, BUT they have a tighter turning circle. ie there are more teeth on the rack. Also MK2> steering arms are a different angle.


Thanks, clears it up nicely.

Regards
Al


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