crankshaft

Crankshaft – Poppet Valve Single

June 2, 2019 Nigel 0

The crankshaft for the poppet valve single cylinder engine has been machined from mild steel and includes timing gear machined directly on the shaft.  This started with a piece of hexagonal mild steel, why hexagonal? [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. Got me wondering what the model diesel fuel consists of, so thought I would do some searching: Enya [more…]

single cylinder poppet valve engine

Poppet Valve Single

April 28, 2019 Nigel 1

The idea was to make a single cylinder 4-stroke and to make it simple with a poppet valve. Not sure my terminology is correct here, what I mean is an actuated exhaust valve and an [more…]

Transitional Engine – Eccentric

April 6, 2019 Nigel 0

The transitional engine eccentric is the drive for the piston exhaust valve, an eccentric is a disc with the rotational centre offset to the centre of the disc. The transitional engine has been on the [more…]

Connecting Rod

December 29, 2018 Nigel 0

The part in an internal combustion engine that connects the piston to the crankshaft. It changes reciprocating motion of the piston into rotary motion of the crankshaft or vice versa. A connecting rod consists of [more…]

Transitional Engine Crankcase

December 24, 2018 Nigel 0

This isn’t much of a crankcase, but that is the best description I can give as it links the cylinder and the main engine frame on my Transitional Engine. The starting point was a 2.5″ [more…]

Transitional Engine Conrod

September 9, 2018 Nigel 0

This Transitional Engine conrod is a two-piece crank design with a slider. This is traditional steam engine design. As this is meant to be an engine that has started life as a steam engine I [more…]

Transitional Engine Cams

September 2, 2018 Nigel 0

I’m struggling with the cam design on this transitional engine. My original thought was around machining this camshaft block that bolts down to the I-beam and two cams hang over the side of the engine [more…]