Bellcrank bracket

Transitional Engine Eccentric Bracket

November 16, 2019 Nigel 0

The transitional engine eccentric bracket supports the pivot for a bellcrank midway along the pushrod. This is the part in question, machined from mild steel with phosphor bronze inserts. As you can see, there were [more…]

Bentley BR2

Les Chenery

October 6, 2019 Nigel 0

Whilst walking around the Shuttleworth Collection I came across a display cabinet with a number of engines built by Les Chenery. The I thought I just have to add a post and share the images [more…]

single cylinder poppet valve engine

Poppet Valve Single

April 28, 2019 Nigel 0

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…]

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 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…]

Engine Bore and Stroke

March 4, 2018 Nigel 0

The bore and stroke of the piston sets the swept volume. Swept volume[cc] = stroke[mm] x p x Bore[mm]2 / 4000 p = 3.14159 Calculator is available to download here. The graph to the right [more…]