A 1/3rd Scale Cosworth DFV model engine by Bouland Motors It was December 2015 and Marcel Bouland, scale model engine enthusiast and collector decided to develop a fully working 1:3 scale Cosworth DFV engine. Many [more…]
This page lays out some of the crankshaft design principles along with descriptions of the main features. That part of the engine which transmits the reciprocating motion of the pistons to the driven unit in [more…]
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…]
Threading and then bolting into aluminium can be troublesome. Also, the cylinder design of this poppet valve engine means there is no space to get the bolts in between the cooling fins and the cylinder [more…]
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…]
Engine Capacity = Swept Volume = Engine Displacement We use all of these terms interchangeably and they all mean the same thing When we calculate the capacity of an engine it is simply the bore, [more…]
Pproblems using durafix welding rod on 6082 aluminium, I was just getting it too hot.
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…]