Checking the motors on the cars is an important thing. In fact, the motors are the heart of the car. Without them there will be no driving at all. Testing the car motors will give you indications about the overall motor heat and will find small engine problems such as bad piston rings, bad valves and etc. This test is quite simple and you’ll only need 30 minutes of your time to complete it.

Fist, let the engine run for about 5 minutes. Testing car motors is better when they are hot. Then disable the ignition system; you don’t want any unnecessary blow ups during testing.
Mark the spark plug wire the same as you did for the spark plug hole with numbers before removing the. Place the compression tester in the spark plug hole of the cylinder (the first one) and manually tighten it.
Ask someone to initiate the car motor several times so that the compression gauge will do proper reading. After recording the cylinder reading marked with number 1, remove the tester. After every cylinder is properly tested and recorded, do the cleaning and replacement of the spark plugs using the right spark plug wire.

The optimal remark of the cylinders capabilities will be if there is a 10% gap between each cylinder. If that gap is more or less between cylinders than malfunctions may occur and you should do another inspection.

The car motors should be regularly checked and taste. A safety car means safety driving.