It can also be down to how you tighten up the wheel bolts.
The taper on the wheel bolts will tend to centre the wheel on the studs.
But, if you tighten one up tight (especially with a air gun) then the wheel can 
be slightly off centre (especially if you don't have the centring rings).
When you then tighten the next bolt which might otherwise pull the wheel more 
central it can't move the wheel.

Fit all the nuts just nipped up and then fully tighten them all.

Jim

  From: geoff ward 
  Sent: Thursday, May 05, 2011 11:25 PM
  To: [email protected] 
  Subject: Re: [Quantum Owners] Wanted XR2 drive shafts and hubs


  Hi Chris,

  Jon could be right, if you haven't checked they are really snug fit it could 
be worth checking. Strangely 2 off Carole's wheels an extra sort of ring thing 
to make the bit that fits over the spigot and 2 have been machined to fit 
perfectly as they are. When one of the special rings went missing some time 
during a tyre replacement
  to a front wheel the vibration between about 55 to 70mph was very noticeable. 
fortunately i found a suitable replacement and the problem completely 
disappeared. Good luck hope you find the cure.

  Regards, Geoff.


  On 5 May 2011 22:58, jon jackson <[email protected]> wrote:

    Hi Chris,
              before you change the shafts have you checked to make sure your 
whels are located on the hubs centrally as some aftermarket wheels are too big 
and its vital that the hub spigot is a snug fit.............or you get 
vibration between 50 and 70 mph!
    Just a thought, good luck.
    Cheers
    Jon
    ----- Original Message ----- From: "Chris Fairlie" 
<[email protected]>
    To: <[email protected]> 

    Sent: Thursday, May 05, 2011 7:21 PM

    Subject: [Quantum Owners] Wanted XR2 drive shafts and hubs



    Has anyone got any usable XR2 driveshafts and front hubs I can buy?

    I have a bad vibration between 50 and 70mph. I've changed the brake discs,
    tyres, & wheels and they have been balanced many times. So time for more
    drastic measures.

    Regards

    Chris Fairlie

    -----Original Message-----
    From: [email protected] [mailto:[email protected]]
    On Behalf Of Robert Craig
    Sent: 04 May 2011 19:47
    To: [email protected]
    Subject: Re: [Quantum Owners] XR2 PARTS & SUBTLE MODIFICATIONS FOR 2+2 AND
    COUPE

    Also DCNFs fit better in the XR2/Quantum engine bay. the DCOEs end up very
    or hard against the subframe at the bulkhead.

    Bob Craig Q2-267
    ----- Original Message -----
    From: "Ian Harrison" <[email protected]>
    To: <[email protected]>
    Sent: Wednesday, May 04, 2011 7:31 PM
    Subject: Re: [Quantum Owners] XR2 PARTS & SUBTLE MODIFICATIONS FOR 2+2 AND
    COUPE


    Yep dcnf are downdraft twin choke carbs.
    Ian

    Sent from my iPad

    On 3 May 2011, at 15:31, Jim <[email protected]> wrote:


      Very interested in the dcnf carbs.

      Out of interest what's the difference betwixt them and the dcoe?
      Thought it was side vs top draft? Do both types fit a 2+2? (with 2,0
      cvh conversion ongoing)(slowly - hopefully unlike the final result!)

      Jim Wall


      Sent from my mobile

      On 2 May 2011, at 17:34, Kelvin Chambers <[email protected]> wrote:


        Following the sale of my 2+2 last year due to ongoing neck pain
        [following a serious RTA in my Audi] I have been having a clearout of
        my shed and am now disposing of all my XR2 parts and serious
        modifications I was planning for my 2+2. So here is a list of parts
        with estimated prices before I list them on ebay - If anyone is
        interested in a job lot I am open to sensible offers.......


        Brand New Zetec 1800 Engine with gearbox and CV Joints connected.
        Plus Lightweight 4 branch Stainless Steel manifold and front exhaust
        pipe, Plus wiring loom to connect XR2 wiring loom to the Zetec
        engine. Plus complete fuel injection system all brand new. Superb
        opportunity to upgrade a tired CVH engined Quantum.  Offers for the
        whole lot around
        £400

        4 x Wolfrace Quantum Alloy Wheels 6.5J x 15 5 Spoke for Fiesta Mk 2
        and 3 so OK for H4 as well as 2+2 and Coupe complete with Uniroyal
        Rainsport 1 Tyres 195/50 R15 82V Rotational. Wheels and Tyres are
        almost brand new and look lovely on a Q.    £200 set of 4 (photos
        available)

        Weber Twin 40s DCNF Matching Carbs. Numbers are 99-250 3M / 100-250
        4A. Complete with K&N Filters on CVH Manifold plus 2 x Weber Service
        Kits 9214100501. I had these on my 2+2 and are jetted for a 1.6 CVH
        engine. They increased power output to around 120bhp. These are
        expensive. Will sell to Q owner for        £200

        Weber Twin 40s DCOE Matching Carbs with small trumpets. Matching
        Numbers 151   242  02 on each carb. On a CVH Manifold complete with
        Filter King Fuel Pressure Regulator and 4 x ITG Megaflow Filter
        Socks.  These are very special carbs and are like new - approx 500
        miles use only. I had these with a 2.0 litre ZVH engine but have sold
        the engine to a Quantum Owner who didn't require the carbs. Jetted
        for a 2.0 litre ZVH engine.  Again, these are very expensive carbs.
        £300 ono

        Electric Power Steering Conversion Kit. Comprises a Vauxhall Corsa
        electric power steering column C/w steering wheel and knuckle joint,
        wiring loom and electronic brain to operate the system. These are
        about £1400 for a new kit from Demon Tweeks. Selling for what I paid
        for it        £240

        2nd Corsa Electric Power Steering Column with motor and ECU control
        box.    £100

        Haynes Weber Carburettors Owners Workshop Manual          £5

        2+2 Boot Cardboard Trim Pieces to trim the boot area - was
        £14.82                            £5

        XR2 Pair Headlights                   £10

        2+2 Boot lid Fibreglass Inner Liner - good condition     £5

        Fiesta Mk 2 Steering Rack from AP Lockheed Brand New but broken
        bracket on one side. It could be repaired or use two large washers
        either side      £5

        Fiesta Mk 2 Steering Rack from AMK Automotive Components. Brand New
        £10

        Weber 32/34 DFT square top twin choke carb. For spares or repair - you
        would need to strip it down      £10

        XR2 Fog light / Heated rear window switch plastic cluster. Screws to
        side of dash. Excellent codition.     £5

        XR2 Hand Brake Cabels. Brand New with adjuster        £10

        XR2 Dashboard Carcass cleaned ready for spraying black       £5

        XR2 Instrument Binacle showing 86000 miles    £5

        XR2 Rear Suspension Trailing Arm Pair   £10

        XR2 Mechanical Fuel Pump        FREE

        XR2 Distributor plus HT leads    FREE

        Please contact me on the Google Group or via e-mail direct to:
        [email protected] or my home number is 01722 327594 if you want
        to discuss.

        Thanks for your interest.

        Kelvin Chambers



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