Windscreen wipers that work
Windscreen wipers for Sevens that really work
Bob Crain introduces a DIY project that will appeal to members who are keen hobby machinists
Removing and re-installing a Duratec engine and 6-speed gearbox
In August 2021, on my way to Jon Vicker’s annual BBQ at Millwood, my gearbox began playing up badly. I was finding it increasingly difficult to change down, especially from 6th to 5th and 5th to 4th. Clearly something needed to be done. Discussing the problem with Phil Stewart of Road and Race Transmissions (near Sevenoaks, Ken
Avon Tyre information
Trailer Tyre pressure calculator
If you are struggling to work out the best tyre pressures for your trailer then you could try this link from a thread in Techtalk: http://rsrengineering.co.uk/trailer-tyre-pressure-calculator/
Building a Seven? - An action that should be prioritised before building up the engine bay.
Speedometers
This guide has three parts:
A: The range of speedos used in 7s (by Tony Whitley and John Vine)
B: Fixing electronic speedo problems (by John Vine)
C: Calibrating the electronic speedo (by John Vine)
Gearbox oil filler / dipstick modification
This a DIY version of the Quaife Type 9 top cover that I first saw on Guy Lowe's gearbox. It makes it much easier to check and top up the gearbox oil level.
Detailed information on K-series EU2 Engine Loom
A little while ago I redrafted the Caterham K Series EU3 Wiring Diagram. Recently I have been involved with helping a number of people with EU2 engine wiring issues and have discovered several problems with the published K Series EU2 Wiring Diagram, some of which were common to the work I did on the EU3 loom.
Fuel Pump Diagnostics using an Oscilloscope
Whilst trying to track down a fuel pressure issue on my 1.8K Series VVC, I came across some interesting techniques you can use to diagnose the health of a fuel injection pump in situ with an oscilloscope.
LowFlying Archive
Detailed information on K-series EU3 Engine Loom
Wiring diagrams for K series cars
Torsional Vibration
When a car's engine idles smoothly at 800rpm, what speed is the crankshaft doing?
It's not 800rpm, except perhaps for a millisecond or two. The rev counter only reads 800rpm because it only registers an average value.
Powerflex Bushes
Bushes are an interesting subject.
In the first place all bushes must introduce compliance into the suspension and this is likely to introduce certain non-linearities which could cause problems or could be used to remove design w
Welding
Electrics
GENERAL PROBLEMS
The answer to most electrical problems is to start by checking the earths in the car. The battery is usually connected to the engine by an earthing strap and the engine is separately connected to the car chassis by a further strap.