1、 The Emgimeerjng Society FOP Advancing Mobility end Sea Air and Space 400 COMMONWEALTH DRIVE, WARRENDALE, PA 15096 Submitted for recognition as an American National Standard ARP71 6 Issued 6-30-62 REV. Revi sed 11 -1 0-88 C I GAP SETTINGS FOR AIRCRAFT PISTON ENGINE SPARK PLUGS 1. PURPOSE: To establi
2、sh recommended gap settings for ai rcraft piston engine spark plugs. 2. REASON: . To standardize spark plug gap settings for commercial applications and all types of aircraft piston engines. 3. RECOMMENDATION: 3.1 Fine Wire Spark Plugs: 3.1.1 Standard Gap: 0.019 in Nominal (0.016 in GO, 0.022 in NO
3、GO). Q. 3,2 Massi ve Electrode Spark P1 ugs: 3.2,1 18 m Thread - 1-1/89 13/16, and l/2 in Thread Reach: 3.2.1.1 Standard Gap: 0,019 in Nominal (0.016 in GO, 0,022 in NO GO). 3.3 3.3.1 9: 0,020 in Nominal (0.018 in GO, 0.023 in NO GO). NOTE: The gap settings specified in this document are reconmended
4、 for normal installation and operational requirements. If special gaps are required, they shall be established and specified by the wer or by the engine/spark pl ug manufacture r . PREPARED BY SAE COMMITTEE E-30, PROPULSION IGNITION SYSTEMS SAE Technical Board Rules provide that: “This report is pub
5、lished by CAE to advance the state of technical andengineering sciences. The use of this report Is entirely voluntary, and its applicability and suitability for any particular use, including any patent infringement arising therefrom, is the soie responsibility of the user.” SAE reviews each technical report at least every five years at which ime it may be reaffirmed, revised, or cancelled. SAE invites your written comments and suggestions. Copyright 1988 Society of Automotive Engineers, Inc. Printed In U.S.A. All rights reserved. f7- r Job5
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