TIMING AN ENGINE
When timing an engine the amateur is sometimes at a loss to know how ho can find’the amount of movement of the flywheel circumference that corresponds to one degree. This is, of course, perfectly simple if the flywheel is exposed, as it is then only necessary to run a tape measure round the rim and note the measurement In inches. Dividing ?60 by this figure gives the number of degrees to an inch of the circumference, Xn many cases, however, the flywheel is partially enclosed, and the above method cannot be employed, but if teeth are cut on the rim for an electric starter, they will serve as a sufficiently’ accurate'gulden The number of teeth must be counted, and, as before, S6O divided by this figure. The result will be the. number of degrees which are equivalent to the distance from one tooth to the next. By utilising this result the correct setting for the valve or magneto timing may then be made.
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https://paperspast.natlib.govt.nz/newspapers/MT19270221.2.72.1
Bibliographic details
Manawatu Times, Volume LII, Issue 3538, 21 February 1927, Page 10
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166TIMING AN ENGINE Manawatu Times, Volume LII, Issue 3538, 21 February 1927, Page 10
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