
This experimental opposed design using Briggs & Stratton engines, is what is called an opposed engine, since there is 2 pistons with a crankshaft at each end. The crankshafts are chained together to keep them synchronized with each other. I varied from the true opposed design by staggering the cylinders so that their centerlines don't line up now. This allowed me to create more of an over-head valve design, out of 2 Flatheads. I am working on a true opposed type 2 cycle, supercharged engine,based on the Junkers Jumo 205, but it is a long ways away yet. Some of the unusual noise is the flywheels rubbing on the cooling shroud, it just wants to rub for some reason :( With about 9:1 compression, this is a beast to start, as a second person is required to hold it down. It runs well, and usually starts on the first pull. The throttle is set about 40% open, as the 1 carburator is fussy about feeding twice the engine it was designed for, so I throttle it with my hand on the vid. The whole set-up weighs in at about 50lb, it is an awkward beast to lift around due to its shape and size.
Opposed
type
engine
Briggs
Stratton
experimental
Charger
Miles
007