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The choice of spark plug is sometimes a critical element of engine design. Is that the case with the Rotapower engine as well?

April 26, 2017Case critical design element engine PLUG rotapower SPARK

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The choice of spark plug is sometimes a critical element of engine design. Is that the case with the Rotapower engine as well?

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We, like OMC, use a surface gap plug to minimize blow-by at the spark plug hole. We see no difference between 10mm and 14mm plugs so leakage effects must be small.