Factors Affecting The Accuracy of Spark Plug Gap Checking By Engine Cold Test
Spark plug as a key component,its electrode gap size should be validated during engine assembly.At present,many engine makers have built engine cold test facility to check spark plug gap size based on measur-ing sparking discharge current,this greatly improved the efficiency of the spark plug gap size inspection,but in the actual test process,the accuracy of engine cold test has been affected by many factors,this paper will briefly describe how the accuracy of cold test equipment is affected by spark plug electrode structure,electrode surface state,inner resistance,test environment,and test equipment's reliability.
Spark plugEngineer cold test facilityElectorate gap sizeCurrent noise
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