Pressure gauge for cylinder: used to measure cylinder
pressure. When measuring, remove spark plug first,
screw instrument pipe orifice into the position of spark
plug, use starter to drag the engine to rotate, and then
fetch the maximum reading of the pressure gauge for
cylinder as cylinder pressure of this cylinder.
Chapter Four Measurement of Cylinder Pressure
I. Detection of Cylinder Pressure
Measurement of cylinder pressure is the major index for judgment of engine working condition,
through which, we can definitely judge if a certain system of engine works well. Therefore, during
maintenance of engine, measurement of cylinder pressure is indispensable.
1. Measuring process
1.1 Turn off ignition switch, pull out all ignition cables
from spark plug side, and then pull out harness
connector of injection nozzle.
1.2 Use a spark plug sleeve to loosen the spark plug
whose cylinder will be measured. Explanation: do not
remove the spark plug whose cylinder will not be
measured.
Please select a cylinder pressure
gauge with accurate reading and let its
pointer return to zero; otherwise, it may affect
accuracy of reading.
