OEMTOOLS 27138 Compression Tester Gauge Set, Cylinder Compression Tool, Automotive Compression Tester

Price: $48.01 - $40.24
(as of Mar 11,2022 05:00:31 UTC – Details)

A compression test is vitally important to check the condition of your engine’s valves, valve seats, and piston rings to see if they are wearing evenly. If there is an issue, you could completely lose power to your car. Issues affecting these parts could cost you over $2000 to fix to get your car running again, but this compression tester kit can diagnose the issues before it gets to that point. This compression checker is easy to use, and the test can be conducted in just a few steps. First, it is important to disable the ignition, so you do not get hurt. Then, remove the spark plugs, thread the hose into the spark plug hole, attach it to the gauge hose, and crank the engine until the highest reading is obtained, which should take about 5 seconds. Repeat these steps for all the cylinders. Healthy engines should have compression over 100 psi per cylinder with no more than 10 percent variation between the highest and lowest readings. This compression test tool set includes a gauge that ranges from 0-300 psi, an adapter so the gauge will work with 14mm and 18mm, and a flexible hose. The compression test hose will help you fit into tight spaces within the engine, making your job easy. Use this fuel compression tester again and again to save time and money.
Test Compression 0-300 psi on 14 mm and 18 mm Spark Plug Ports
Flexible Rubber Hose Extension
2 Step Adapter 14 and 18 mm
SAE Sizes: 1/4, 5/16, 3/8 and 7/16 In.