Вот, попалось в интернете, давно это известно, сам как-то выставлял, разницы по правде сказать не почуствовал, но все-же, может кому пригодится. …Рис. 12. Нерациональное (слева) и рациональное положение свечи зажигания (справа).
Рациональное положение более благоприятно сказывается на устойчивой работе двигателя на холостом ходу, мощности, экономичности. При нерациональном положении нагар покрывает все стенки камеры сгорания, при рациональном - нагар образуется только на краю днища поршня…
На свече посадочное место коническое – как шайбы делать?
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