Reading spark plugs
From Crankshaft Coalition Wiki
(Amended picture description to alleviate confusion between detonation and pre-ignition and to provide the correct remedy for the problem.) |
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==Magnifier== | ==Magnifier== | ||
It's imperative that a light source with a magnifier be used to read plugs, because the plug insulator at the deepest point is one of the things that is looked at. If the light source isn't uniform from reading to reading, the slight coloring differences can be misread. The idea is to have repeatable conditions. | It's imperative that a light source with a magnifier be used to read plugs, because the plug insulator at the deepest point is one of the things that is looked at. If the light source isn't uniform from reading to reading, the slight coloring differences can be misread. The idea is to have repeatable conditions. | ||
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