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INTRO
This my seventh project, The Wyvern, Gas/Petrol Stationary Engine, Being "Open Crank and exposed running gear make an excellent tutorial and an ideal first time project. Started Dec.2012 to Sept. 2013. 600 hours.
HISTORY
Gas/Petrol Stationary Engines were first used in the late 19th Century, mainly on farms replacing steam engines.
FACTS
The Wyvern Gas/Petrol Engine 40cc 1 1/4" bore x 2" stroke design by Edgar T. Westbury in1962. The complete engine measures 12" x 8"x 6" with 2 x 6"" Flywheels, made from Castings and Stock bars, all supplied from Hemingway Kits. Lubrication is from 3 wicke oil cups and the Cylinder is water cooled.
The Wyvern was designed to run at a constant 1,500 - 2,000 rpm. Ignition. Novus -1 Coil and MIC -1 supplied by Minimag Co.
EUREKA!
17th september 2014 Wednesday 12 noon The Wyvern ran for the first time on Petrol unaided for about 3 seconds Wednesday 25th October 2014 12 30 pm ran on Propane for 15 minutes. Monday 10th October 2014 1200 noon ran on a tank full of petrol for 30 minutes.
vidio clip
1 WYVERN
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Wyvern Plans
3 Full set of castings
4 Con-rod made from 1 1/4" round bar.
5 Base plate being Milled with a Fly cutter.
6 Wooden block to Center the base plate for machining.
7 4 part Crank shaft Brazed and ready to be finished.
8 All parts machined prior to assembly.
9 2 Exhaust Poppet Valves 1 replacing the original inlet valve.
10 Preassembly checking parts fit correctly.
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2 to 1 Skew gears fitted.
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My own designed Silencer.
14 Milling the English Oak Base for switch and coil .
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Minimag and MIC-1 fitted within the base
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Mounted on base with Plaque and painted.
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Propane Demand Valve fitted
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