HOW TO TIME AN ENGINE.
Four-stroke. Valves. —Set the exhaust valve to close just after the completion of the exhaust stroke. It will thou commence to open when the piston is about one-seventh of the length of tlie stroke from the bottom of the firing stroke. The inlet should commence to open as the exhaust closes and remain open for one complete stroke, of the piston or while the flywheels turn through ISOdeg.
Magneto.—Place the piston exactly on the top of the compression stroke and connect up the magneto with the points just about to break and the ignition lever two-thirds retarded. This will mean that the explosion when ignition is fully retarded will take place when the piston has travelled about I.smm. down the firing stroke.
Two-stroke. Magneto.—Place tho piston on the top of the compression stroke and connect up the magneto with the points just broken and the ignition lever fully retarded.
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Bibliographic details
Evening Post, Volume XCI, Issue 107, 6 May 1916, Page 12
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154HOW TO TIME AN ENGINE. Evening Post, Volume XCI, Issue 107, 6 May 1916, Page 12
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