32x40 Gas engine, (Highlander) Plans and workshop notes.
The engine is now complete and running well, during its development it has changed very little from the original concept: mainly just a change of spark plug position and the addition of rollers to the rocker arms.
One of my requirements was that the engine could be run for extended periods without having to stop for lubrication, so a direct feed to the big end was devised that can be topped up while running, the main bearings are sealed ball bearings that need no attention.
Using propane as a fuel the exhaust is clean, all-round an engine that is easy to live with, yet has the possibility of doing useful work.
I have designed the gears to be No 1 module because gear blanks are obtainable from stockists if you do not wish to cut your own. Full instructions are given for those who wish to cut the gears
Including how to make a simple gear cutter.
The bore diameter was chosen because it can use standard piston rings.
In general I have tried to make this engine simple to make, the prototype was built out of bar stock, on a Chester Conquest 7X12 and a Chester Champion 16 V Mill.
One of my requirements was that the engine could be run for extended periods without having to stop for lubrication, so a direct feed to the big end was devised that can be topped up while running, the main bearings are sealed ball bearings that need no attention.
Using propane as a fuel the exhaust is clean, all-round an engine that is easy to live with, yet has the possibility of doing useful work.
I have designed the gears to be No 1 module because gear blanks are obtainable from stockists if you do not wish to cut your own. Full instructions are given for those who wish to cut the gears
Including how to make a simple gear cutter.
The bore diameter was chosen because it can use standard piston rings.
In general I have tried to make this engine simple to make, the prototype was built out of bar stock, on a Chester Conquest 7X12 and a Chester Champion 16 V Mill.
At last the plans for this engine are available they consist of 62 A4 sheets and build notes of 6000 + words and 118 photos of the build . Price £20 Plans are sent in pdf format as an attachment by return. The plans can be printed so you can use them in the workshop. The "Buy now " button is on the Brian's workshop home page.
The original concept plan and a few photos taken during the build.
The barrel almost half way towards completion,
Further work is necessary for the water jacket and rocker supports ETC.
Getting the blanks for the piston,
Cylinder liner, and head ready for machining to size
Cylinder head with combustion chamber, Valve ports and hole for spark plug.
Machining the side plates
It's starting to look like a engine.
Valves are cut from stainless steel bar stock
Cam gears and ignition timing wheel
The built up crank shaft is coming along.
The crank shaft assembled and ready to install
The ignition system is now in place . so the only part's to finish before I do a test start are the gas demand valve, a simple cooling system. and maybe a silencer.