Hi-Duty Spark-Plug Testing

Paper #:
  • 380174

Published:
  • 1938-01-01
Citation:
Beall, A. and Townsend, L., "Hi-Duty Spark-Plug Testing," SAE Technical Paper 380174, 1938, https://doi.org/10.4271/380174.
Pages:
7
Abstract:
AS an engine under development is not a tool which can be used for the testing and rejection of questionable spark-plugs, some test is necessary to parallel the engine development so that suitable spark-plugs are available for it when it enters service. This paper describes a preliminary single-cylinder engine test method for spark-plugs which evaluates the quality not only most essential but the most difficult to secure, namely, resistance to preignition.Tests were made on two types of engine-a liquid-cooled, single-cylinder test engine and an air-cooled, single-cylinder test engine. Operating conditions were selected with regard for satisfactory performance plus the ability to heat the spark-plug.A large number of plugs were tested, some of identical design, and many of them were re-run several times as a check on the reproducibility of the test method.In addition to the preignition test, a full-scale engine type test, a ground fouling test, a flight fouling test, and a starting-ability test are recommended, with bench tests at intervals and measurement of electrode erosion and wear as a check on the probable useful life and ability of the spark-plug to measure up to the requirements of flight service.
Access
Now
SAE MOBILUS Subscriber? You may already have access.
Buy
Select
Price
List
Download
$28.00
Mail
$28.00
Members save up to 42% off list price.
Share
HTML for Linking to Page
Page URL

Related Items

Training / Education
2005-11-15
Event
2018-04-10
Standard
1990-03-16