Valves

July 12, 2019 Nigel 0

The main function of the engine valves is to let air in and out of the cylinders. Cooling – the intake valve will be cooled by the incoming air and fuel mixture. The exhaust valve [more…]

Countersink Extension

June 16, 2019 Nigel 0

The poppet valve crankcase has been bugging me and I wanted to fix the brackets from inside the crankcase with countersunk caphead bolts. There just wasn’t room or the right angle to get a bit [more…]

Crankshaft – Poppet Valve Single

June 2, 2019 Nigel 0

This crankshaft for the poppet valve engine has been machined from mild steel and includes timing gear machined directly on the shaft.  The webs of the crank are just wide enough to still fit a [more…]

Model Diesel Engine Fuel

May 18, 2019 Nigel 0

I’m used to the old diesel engines of years ago and I can still smell the fuel. Go me wondering what the model diesel fuel consists of, so thought I would do some searching: Enya [more…]

Measuring Solenoid Force

May 5, 2019 Nigel 0

When designing the V-Twin solenoid I thought I should try and improve the solenoid. One area of particular concern was that for this one I used small permanent magnets in the armature, useful as it [more…]

Crankcase – Poppet Valve Single

April 28, 2019 Nigel 0

The crankcase for the Poppet Valve Single Cylinder was machined from a cube of aluminium, quite a rough cube that had been laying around my shed for some time. The first job was to machine [more…]