There is a gap between the spark plug and the top face of the piston called the clearance volume. It serves 2 purposes.
1. The fuel before and after combustion has to occupy some volume and this is small gap is for that space for it to burn.
2. To avoid unnecessary contact between the piston head and the spark plug.
It is important to gap the spark plugs of an engine. The spark plug gap measurement for this engine is 0.044 inches.
what is the right spark plug gap for a 4.7 4 wheeler engine
The spark plug gap in your 1999 Chevrolet suburban is dependent upon the type of engine. The standard engine spark plug gap is .011.
The spark plug gap should be set to the manufacturers spec, regardless of vehicle.
Spark plug gap is 0.060
Spark plug gap on this engine is .030
The recommended spark plug gap is .032"
typical spark plug gap for this engine is 0.035 inch
spark plug gap for Toyota 2.7 enines is .032.
Set the spark plug gap to .030"(.762mm).
.035 spark plug gap, .02 point gap.
If the car has the 2.5L 4 cylinder engine the spark plug gap is 0.060". If the car has the 2.8L V6 the spark plug gap is 0.045"