nick205
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 posted on 13/6/05 at 11:48 AM |
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limiting steering rack travel
I'm sure I remember people saying they had to limit the travel of their steering racks (MK Indy modified rack in particular)
Can anyone tell me why they do it and the simplest way of going about it?
Cheers
Nick
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Kissy
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| posted on 13/6/05 at 12:05 PM |
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I had to do mine for the MOT (no SVA) just in case they got picky. Made a pair of ally collars, 'bout 8mm thick, slotted to pass the rack
output in situ, held with lockwire. You can use correct size jubilee clips on their own. It all hides under the gaiters.
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Hellfire
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| posted on 13/6/05 at 12:07 PM |
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With steering rack on full lock, the track rods/extensions fouled on the wing stays and also inside edges of wheel. I don't know why- our first
build had no such problems. We simply machined a couple of aluminium spacers to fit over the rack and into the rack casting. They work an absolute
treat.
You could also use jubilee clips or PU bushes to restrict the movement, as others have done.
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nick205
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| posted on 13/6/05 at 12:28 PM |
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that's what I thought!
Do either of you have any pics of the ally collars you made?
Nick
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Hellfire
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| posted on 13/6/05 at 04:04 PM |
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Not as yet but I can get some tomorrow - if we have time. They will be "in-situ" will it matter. I can always ask the machinist what
dimensions he used  
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nick205
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| posted on 13/6/05 at 04:31 PM |
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Hellfire - any input appreciated, I have a friendly lathe owner on standby to spin me up something suitable
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ChrisGamlin
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| posted on 13/6/05 at 04:36 PM |
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make them out of steel then you can tack weld them on. Jubilee clips you need to be careful of, certain sized ones could jam the screw / wormwheel bit
under the outer casing of the rack (Escort rack is like this, not sure about Sierra), the last thing you want when on full opposite lock is to find
that you cant then unwind the lock again!
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Guinness
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| posted on 20/10/05 at 09:45 AM |
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Sorry to drag this up, but does anyone have a photo, or dimensions of these collars? (I need to get a set made up)
Unless anyone has a spare set post SVA?
Cheers
Mike
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Hellfire
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| posted on 20/10/05 at 11:52 AM |
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Mike, they're easy enough to measure with the boots off the rack. Just turn your wheels to the point you want them to stop and measure the
distance between the rack casting and the knuckle on the steering arms. Repeat measurement on other side as a check. Measure the diameter of the rack
itself and the internal diameter of the casting.
This will give you the dimensions you require. Make the hole ever so slightly larger than the rack, (so it slips over it) and slightly less than the
diameter of the casting at the end (So it sits inside). Then just unscrew the steering arms and slip the rings over.
Does that make sense?
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Guinness
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| posted on 20/10/05 at 12:26 PM |
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Thanks Hellfire
Knew I'd get a quick response from you
I'm at work at the moment and was hoping to get one of the lads to make them this afternoon. Will have to measure tonight and then get them to
make them up tomorrow.
Cheers
Mike
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j_davis
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| posted on 20/10/05 at 12:27 PM |
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You can see the limiters as supplied by Quantum Sports Cars in this picture
Piccy
EDIT: They do them for £9.95 (not sure if that's each or for the pair) Quantum
HTH,
James.
[Edited on 20/10/05 by j_davis]
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Guinness
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| posted on 20/10/05 at 01:23 PM |
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Cheers for the link J_Davis. I rang Quantum, but they said they are only suitable for alloy racks.
I'm sure my donor had a manual alloy rack, which I took to MK to be shortened. However when it came back it was powdercoated and kind of looked
steel.
Does anyone know if MK skip the alloy racks and replace them with shortened steel ones?
Mike
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