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Author Topic: wheel centers safe to grind?  (Read 1706 times)

Offline hyland770

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wheel centers safe to grind?
« on: 07 April 2009, 10:12 »
i got 4 porche wheels that i want to fit, unfortunately the center of the wheel that slots onto the brake disk is about 2mm too short in diameter, is it safe to grind the wheel center to get a larger hole thus making it able to fit!? if you see what i mean? any advice would be appreciated.
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Offline Wayne

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Re: wheel centers safe to grind?
« Reply #1 on: 07 April 2009, 10:16 »
If it is only 2mm then you will be fine.
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Offline hyland770

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Re: wheel centers safe to grind?
« Reply #2 on: 07 April 2009, 10:24 »
cheers, will put some pics up when im done  :smiley:
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Offline Martz

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Re: wheel centers safe to grind?
« Reply #3 on: 07 April 2009, 10:33 »
Quote from: hyland770 on 07 April 2009, 10:12
i got 4 porche wheels that i want to fit, unfortunately the center of the wheel that slots onto the brake disk is about 2mm too short in diameter, is it safe to grind the wheel center to get a larger hole thus making it able to fit!? if you see what i mean? any advice would be appreciated.

I took mine to a engineering shop had had them done by laser measurement. Was all perfect and I was happy with the result. So no, unless your sh1t hot with a grinder then I would take the better option.

Martz
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Offline Len

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Re: wheel centers safe to grind?
« Reply #4 on: 07 April 2009, 10:41 »
Like Martz says I would be worried about causing any imbalance in the wheels.
Best get an engineering shop to machine them for you!
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Offline hyland770

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Re: wheel centers safe to grind?
« Reply #5 on: 07 April 2009, 12:09 »
any idea of prices? i was gonna get a drill with a decent drill bit on and run it around the inside  few times till iv taken just enough off to get the wheel on.
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Offline Len

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Re: wheel centers safe to grind?
« Reply #6 on: 07 April 2009, 13:02 »
No ideas on prices mate! You'll just have to ring around a few local places.

Doing what you suggest wouldnt be very successful and you would end up breaking loads of drill bits!
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Re: wheel centers safe to grind?
« Reply #7 on: 07 April 2009, 19:05 »
Dont bother with a drill/dremmel etc it will end in tears.
It will take about an hour and half to do on the cnc mill to do it properly.
Thats about £60 or £15 per rim, bargain :wink:

How bad are the edges (kerbed?) as this is the only real issue when setting up (for me).
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Offline Martz

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Re: wheel centers safe to grind?
« Reply #8 on: 07 April 2009, 19:12 »
I paid £50 for the work, cash. Took them half hour as it is the setup that takes the time. Tyres must be off though.
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Offline hyland770

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Re: wheel centers safe to grind?
« Reply #9 on: 07 April 2009, 21:43 »
rim edges are fine, i thought as its only 2 mm it wouldnt be that hard obviously i was wrong! (naievity is such a nice thing lol) well as 2 of the tyres arent on anyways the tyres arent the problem, its the shelling out another £60!! bite the bullet i guess as they are pretty sweet rims, cheers for advice as always! :wink:
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