Fuel Filler and Tank Vent Valve

To comply with IVA requirements the cap needs to be tethered to the fuel filler itself.  I copied the idea from the Carbuilder Solutions Catalogue, i.e. brass picture frame wire and cut down crimp terminals.

The cap did need dismantling first, but at least there are two holes available to take the wire and a handy recess to hide the crimp connector in.

With the cap reassembled ready for installation on the car.

Fuel filler hose connected up and all mounting bolts tightened.

I was a bit worried that the two bends required might be too tight or that the pipe might foul on the boot box molding altogether.  In the end it does not seem too bad and all being well the fuel will flow easily down the filler pipe and the air back up.

Next, time to fit the (not cheap at all) fuel tank vent valve.  This allows air in to the tank as fuel is used.  It also allows air in or out of the tank for expansion/contraction due to temperature changes.  Most importantly it does not let fuel flow out when inverted, i.e. when the car is upside down after an accident.  I think this is all done by a clever arrangement of two ball bearings and probably a spring or two.  The valve has to be fitted with the rubber o-ring uppermost.

That's the fuel system complete and ready for service.  Just need to complete the exhaust before the first engine start can be attempted.

Clutch Cable

With the Tiger floor mounted pedals the brake pipes are routed along the lower chassis rail.  Unfortunately this is where the clutch cable would normally be tethered.  There is pretty much only one routing where the clutch cable does not foul the brake pipes - that is in a vertical curve.

I fabricated two brackets and used rubber lined p-clips to hold the clutch cable in this configuration.  The clutch action seems nice and smooth and the cable stays clear of the brake pipes, oil filter and lower steering column.

This large bracket came in a multi-pack from Screwfix.  It is normally used to hold kitchen cupboards together.  After adding a 90 degree bend in the vice it is just right for the job.

Brake pipes fitted

Front and rear brake pipes fitted using 'p-clips' and rivets. Brake light switch and brake fluid reservoir also fitted to master cylinder. Bleed screw to be added to upper front hole later. The rear brake pipe is connected to the master cylinder via a compensator, which reduces the braking effort on the back wheels.


The front brake pipes will be cut to length once the exact position of the braided flexi hoses is established. After cutting the ends will need re-flaring with the appropriate tool.