twybrow
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| posted on 7/5/08 at 11:53 AM |
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Spigot rings
I am confused. I am fitting wheel spacers (hubcentric) and alloy wheels to my car at present. The wheels have an i/d of 67.2mm, the hub (Ford RS2000
rear) has an o/d of 63.4mm. I was under the impression that I would require a spigot ring to properly locate the wheels on the spacers/hubs, to make
up the difference in diamter. I have just spoken to the chap from the wheel manufacturer, and he says cars this old did not use spigot location - they
reiled upon the wheel studs for location. whilst I can believe this, it seems odd to me.
I have now ordered some more wheel spacers (hubcentric) having spoken to these chaps at Stoneleigh. Now I ring up and get told something completely
different (very rudely too!). Can anyone please confirm, whether you need spigots to fit new alloy wheels onto old ford hubs? Many thanks.
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Hammerhead
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| posted on 7/5/08 at 11:57 AM |
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I'm no expert, but I'd expect that you would have to use spigot rings to centrally locate the wheels. Got spigots sent when I got my OZ
wheels.
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BillHoll
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 posted on 7/5/08 at 12:14 PM |
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It depends on the type of wheel nut you are usinig. If they have awheel correctly. But if they just have a flat face then as a rule they will not.
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BillHoll
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| posted on 7/5/08 at 12:16 PM |
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Apologies for the rubish my pc is playing up. It should read if they have a tapered seat then they will locate the wheel correctly.
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Mr Whippy
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| posted on 7/5/08 at 12:16 PM |
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Not necessary
Many 4x4's and wheels with the larger hub caps don't use any centre location. The wheel studs do that perfectly well.
Does make fitting a wheel easier though.
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britishtrident
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| posted on 7/5/08 at 12:32 PM |
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Wheel nuts provide centering --- drive and braking and support of vehicle weight are down to friction between the wheel and the brake drum or hub.
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twybrow
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| posted on 7/5/08 at 02:07 PM |
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I do have tapered nuts (ooh err Mrs), so that should help with the location, but it still seems a bit hit and miss to me. I cant see why you
wouldn't just add a spigot, even if the OEM didn't use them. Surely, the improved location can only be beneficial?
So why do people use hubcentric wheel spacers if they are not needed? Or is it not about centering the wheel, more about centering the spacer?
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britishtrident
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| posted on 9/5/08 at 07:06 PM |
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Spigot mounting is mainly for cars with wheel bolts, with wheel bolts you have to have either a spigot or locating dowels to make changing a wheel on
a country road pitch black night possible.
The big problem with spigot mounting is wheels get badly seized on the hub -- again not joke if get a puncture and don't know the trade
insider trick for getting the wheel unstuck.
[I] “ What use our work, Bennet, if we cannot care for those we love? .”
― From BBC TV/Amazon's Ripper Street.
[/I]
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britishtrident
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| posted on 9/5/08 at 07:18 PM |
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quote:
Originally posted by twybrow
I do have tapered nuts (ooh err Mrs), so that should help with the location, but it still seems a bit hit and miss to me. I cant see why you
wouldn't just add a spigot, even if the OEM didn't use them. Surely, the improved location can only be beneficial?
So why do people use hubcentric wheel spacers if they are not needed? Or is it not about centering the wheel, more about centering the spacer?
(1) They can charge a lot more.
(2) Some cars are designed to locate the wheels only using the spigot.
In the end it is down to the buyer thinking that part B is more professional than the simpler part A because of the bling factor.
In engineering design it is good practice never to over locate a part --- the wheel should have its centre located by either tapered/beveled wheel
nuts or a centre spigot but to use both is bad practice.
[I] “ What use our work, Bennet, if we cannot care for those we love? .”
― From BBC TV/Amazon's Ripper Street.
[/I]
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