Technical Guides

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

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.

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:


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.

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.


Some notes on welding, brazing, bronze welding and electric welding by Chris Flavell

LowFlying Archive

Archive copies of the clubs award winning LowFlying magazine are now available on-line in an easily searchable form.

Safety Notice - R-clips

From SimonLambert? at Caterham Cars on 24th December 2002:

Building a Seven? - An action that should be prioritised before building up the engine bay.

Torque loading the front suspension upper & lower wishbone attachments.

Avon Tyre information

Avon Tyres have generously put together this document with tips on tyre pressures and temperatures and information about Avon tyres specifically for Caterham Sevens

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

Coventry Climax Engine

Climax, an engine to be proud of

Reducing weight on a Seven

What is the significance of reducing rotating mass versus stationary mass, when lightening your Se7en?


Newton's Second Law of Motion states: "Acceleration is proportional to force and inversely proportional to mass."


HANS devices

If you are considering using a Head And Neck Support head restraint when racing next year, there are a few things to watch out for. Below is some help from Andrew Smith, and a press release from Caterham Cars.


A broad summary of all the available chassis/body types and various options that could be selected.

Cosworth Engines

In the begining the world was created and God saw that it was good. Then he invented motorsports and it was OK.