Thursday 4 July 2013

IVA Passed!!!!!!!!

Wooooooooooooooooo! I passed my IVA re-test today!

Here's what I had to do to get through:

1. Replace the slide pins on the dodgy rear caliper.  One of them looked home-made, and not at all suitable...
2. Replace Rally Design's crappy forged coupling (RD820F) with a pressed steel type instead.  Couldn't get the forged one to sit tight on the steering rack spline no matter how much I tightened the bolt up.  I'm not the only person to have this problem either...
3. Delete my Mondeo rear brake bias valve to improve my overall braking efficiency.  The rear brakes are quite weak on the MX5 and you don't need a valve to get trhough IVA.
4. Chop a half inch or so section out of the brackets that hold the end of the handbrake cables to the rear calipers and weld them back together so the cables clear the chassis.  I raised the ride height a bit too just to be on the safe side.
5. Rotate my rear flexi line slightly so it didn't touch the chassis any more.


Though not on my fail sheet I also:

* Made the clutch pedal longer and replaced the master cylinder with a 0.625" one.  The clutch was rediculously heavy and snappy before I did this.  Still not great but vastly improved.

* Re-packed my exhaust with wire wool as the first lot blew out on the way home from my first test!

* Re-work the front wingstays to make them a bit stronger.  One of them sheared off within hours of booking my re-test, and I had two evenings to re-make them!


2 comments:

  1. Hi, just reading through this blog as I'm going through the IVA test in a month. I was wandering to what extent they inspect under body panels such as the scuttle, dashboard and nosecone?

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  2. Hello again Chris!
    They didn't make me remove any of those panels, but they did look at the car in great detail, from pretty much every angle possible.
    They spent a lot of time underneath the car in particular.
    If you're planning to hide anything, chances are they'll find it!

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