Thursday, November 5, 2015

Make Use Of A Compression Tester

1. Effect the right specification for the cylinder's compel reading. This compel reading Testament be listed from the manufacture on the engine specifications folder. There may be a radius in the pressure reading that is reccomend by the engine manufacture. One is a threaded screw tester that screws into the Glimmer plug opening. The other is a hand-held tester that is rubber tipped. This type may hurting for the avail of another man to Eccentric person the engine for you as you must mastery the tester in the spark plug gap during the compression check. Everyone tester Testament ante up accelerated to the identical results, on the contrary the threaded screw type is even extended accurate in its reading.


Instructions


Using a compression tester Testament maintenance in the diagnoses of a poorly sealed cylinder on a petrol or diesel engine. By conducting this basic crack, you can bid provided an engine has a severe hot water by privation of compression. A destitution of compression in an engine can miserly a loss of energy, and the engine may posses to be rebuilt. There are two types of compression testers.


2. Remove the spark plug from the cylinder that you want to test by using the properly sized socket wrench.


3. Pull the center coil wire from the distributor cap on multi-cylinder engines. This will keep the engine from starting, but still allow you to "turn over" the engine, creating a pressure in the cylinders. On a pull-start type engine, such as a lawn mower or tiller, the removal of the single-cylinder spark plug will be sufficient, as the engine cannot start with the spark plug removed.


4. Install the compression tester into the spark-plug hole. If the tester is the threaded screw type, hand tightening will be sufficient, but be sure to have at least four or five rounds of threads in contact with the spark-plug hole threads. The hand-held type only needs to be pushed firmly in place with the rubber tip of the tester against the threads of the spark-plug opening.


5. Crank the engine with the starter or pull the start cord and observe the pressure gauge on the compression tester. Perform this test a few times to receive an accurate reading.


6. Compare this reading to the supplied information from the engine manufacture and follow their recommendations for repair.


7. Release the pressure from the cylinder by pressing the release valve on the side of the compression tester. Some engines may create as high as One hundred eighty lb. per square inch (PSI), and the pressure should be slowly let off of the gauge prior to its removal.