Getting Started

The first step is to ensure the engine is warm. Because we will be pumping air into the engine, leave all the spark plugs in except for the cylinder you're testing. As an example, let's start with a Toyota engine, for cylinder number one. Pull the spark plug out of the cylinder and turn the engine over until the piston is at top dead center (TDC). If you have balancer marks every 90 degrees, this will help. Now install the air-fitting adapter into the spark plug hole. You'll also need a breaker bar or ratchet and socket for the crank nut. Remember to double-check that your gauge reads zero before you start.  
Leak Paths
There are three major leak paths where cylinder pressure can escape: past the rings, the intake valves, or the exhaust valves. We'll ignore the head gasket for now. With each of these three leak sources, it's easy to tell where the leakage is originating with some sleuthing. If you can hear a hissing sound coming from the valve cover breather hole or from the dipstick tube, then the air is escaping past the rings. If you prop open the throttle blades and hear that same hissing sound, then the pressure is leaking past the intake valve. If the air is escaping past the exhaust valve, you will probably be able to hear the air even as far back as the tailpipe.

The mobile sector is literally on the rise.

Accurate Measurement Inspection Services recommends that a structural inspection be done annually and/or after any severe weather.  Below are lists of what is included in a standard inspection for various types of towers.

Visual inspection of antennas and transmission lines. Visual inspection of overall condition of the tower noting any potential problems with structure condition. Visual inspection of paint condition.

Take a look at your expiration date

Every hard hat has the date of manufacture imprinted on the inside rim of the hat itself, it is usually in the form of a circle similar to a clock.

To read the date of manufacture, the arrow points to the month and the number in the center is the year.

It is recommended that hard hats be replaced no later than every five years due to natural degradation over time. In some cases and related work environment conditions, hard hats will need to be replaced more frequently.

All hard hats are classified according to the specific impact, and electrical performance requirements they are designed to meet. This classification is also commonly referred to as the ANSI Z89.1 standard.

Better to know, then be sorry

Safety toe work boots are very important for those of you working and performing inspections with heavy equipment, chemicals, or are working around electricity. Without them, you become susceptible to cuts, broken toes (or even feet), sprains, electric shocks, punctures on the bottom of the feet and/or burns.

Steel toe boots are durable work boots, which as the name implies are equipped with an inner steel toe reinforcement to protect against potential injuries to your feet. Steel toed boots in general also have a mid-sole plate to protect from possible puncture wounds from underneath as well.


Most safety toe boots will have symbols on the outside indicating the type of protection the boot offers.  The symbols and description of each are as follows:

• Green Triangle: Class 1 toe cap, puncture resistant sole
• Yellow Triangle: Class 2 toe cap, puncture resistant sole
• White Square: Electrical protection (ohm symbol)
• Yellow Square: Anti-Static protection (SD)
• Red Square: Electrical Conductive (C)
• Fir Tree: Chain Saw cut protection