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The spark plug gap for your Mercedes is .032
.028 to .032 Champion N9Y or N10Y
30 degrees on dwell or 16 thousands with feeler gauge (close)
.017........Is wrong !The ignition spark gap is .027
points gap 17
0.020 in.
If you buy the spark plugs the gap should already be preset to fit your specific vehicle. The gap is 0.032 in.Ê
You can check me on this, but, if I remember correctly should be .016 to .018
The point gap is ( .024 inch ) for the 2.8 L - V6 engine in a 1974 Ford Mustang ( unless the engine compartment decal shows different )
the spark plug gap size on a Mercedes e420 is .32
the gap is .8
A 1983 Toyota Corolla was equipped with electronic ignition system, therefore it does not have points. However, if the engine has been modified such that the car DOES have a point-type ignition system, the typical point gap for an earlier model (i.e. years 1974-1977) would be .018"