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  1. #1
    Join Date
    May 2020
    Location
    west sussex
    Posts
    64

    IVA is earth required?

    I am shortly taking the Sumo Cobra for its IVA in Gillingham.

    Can anyone confirm if the fuel tank and/or filler needs to be earthed

    Does the gear knob need to show position of gears

    I seem to recall seeing something about earthing filler neck last year... thanks.

  2. #2
    Join Date
    Aug 2012
    Location
    Worthing,West Sussex
    Posts
    98
    I was asked to show an earth at Gillingham,gearknob has to conform to radius requiements only

  3. #3
    Join Date
    Feb 2020
    Location
    Surrey
    Posts
    20
    Yes - All metal fuel tanks must have an earth path to prevent the build up of static electricity. (this may be a separate bonding or the mounting arrangement where it does not isolate the tank), and I earthed the filler cap as well for safety. Put it somewhere easily visible.

  4. #4
    Join Date
    May 2020
    Location
    west sussex
    Posts
    64
    Thanks for confirming earth required, will get that done today.

    IVA in 3 days ... has anyone actually passed at first attempt?

  5. #5
    Join Date
    May 2004
    Location
    Cowbridge, United Kingdom
    Age
    63
    Posts
    10,281
    Many have passed first time.
    Not me personally, 2nd attempt for me 3 times.

    Don't be disheartened if you fail, at least you come away with a definitive snag list.
    Kev Davies
    South Wales Area Rep. UKCC Membership Secretary
    DAX Mk4, 383 Chevy Stroker, Tremec. SOLD
    Contemporary CCX 3-4028, 445ci Big Block FORD FE,TKO 600, Old School IVA'd and SOLD
    Dax De Dion LS2 and T56 IVA'd June '17 SOLD
    1965 Ford Mustang 289 Convertible SOLD
    In build- Hawk 289 Sebring Awaiting IVA

  6. #6
    Join Date
    Mar 2019
    Location
    Sevenoaks
    Posts
    133
    iwas tested at gillingham and they actively looked for the earth. i had no indications on my gear knob.

    Quote Originally Posted by TurboFreak View Post
    I am shortly taking the Sumo Cobra for its IVA in Gillingham.

    Can anyone confirm if the fuel tank and/or filler needs to be earthed

    Does the gear knob need to show position of gears

    I seem to recall seeing something about earthing filler neck last year... thanks.
    AK Cobra started 06/19
    On the road 11/2020
    Chevy 383 Stroker, TKO 600
    See my build on instagram: Julesdm14

  7. #7
    Join Date
    Feb 2007
    Location
    West Sussex
    Posts
    9,446
    At Gillingham they wanted evidence my tank and my fuel cap were both earthed..
    Crendon Chassis No.49
    Huddart FE428 + toploader

    Not listed in the Shelby Register.

  8. #8
    Join Date
    Feb 2011
    Location
    Northampton
    Age
    42
    Posts
    4,737
    Quote Originally Posted by KevinW View Post
    At Gillingham they wanted evidence my tank and my fuel cap were both earthed..
    I am assuming they are fine with stuffing their head under the wheelarch to look, or did you take photos?
    My DeDion build diary..
    Hon Sec of the Digidash branch of the Unpopular Kit Car Design club

  9. #9
    Join Date
    Nov 2016
    Location
    Stevenage
    Age
    49
    Posts
    334
    Are they not earthed through the mounting bolts to chassis?

  10. #10
    Join Date
    Feb 2007
    Location
    West Sussex
    Posts
    9,446
    Quote Originally Posted by Cobragreyhead View Post
    Are they not earthed through the mounting bolts to chassis?
    You're right. But its good engineering practice to have a dedicated electrical connection as well, as rust/other crap etc 'might' cause an issue.

    IIRC I argued that my tank was earthed via the fuel level sender, as I could show an earth wire from it going to the chassis.
    On the filler cap (and yes I was asked about this), I added an earth tag to the underside of one of the filler neck flange mounting bolts, ran this down the filler tube in the boot, clipped using zip ties and then earthed it onto the tail light loom cluster. I opened the boot and they could look in with a torch to check all OK.

    Aaron: they were happy to look at where ever I directed them for the requisite IVA reg. Although I had lots of pics standing by, especially for the triangulation I had to do on the seatbelts, the only time I needed photos was for the engine number which was virtually impossible to see with the naked eye. Took me ages to get an acceptable legible pic of this before the test - had to show that this was indeed the same engine, through evidence of paint chip and identical ancillary items in the photo as well as demonstrable on the car.
    Last edited by KevinW; 03-05-21 at 09:00 PM.
    Crendon Chassis No.49
    Huddart FE428 + toploader

    Not listed in the Shelby Register.

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