July 21, 2016 MODELS AFFECTED All O-320, IO-320, O-340, O-360, IO-360, VO-360, HIO-360, IVO-360, O- 540, IO-540, IO-720, and TIO-541 engines that do not have a Thermostatic Oil Cooler Bypass Valve Assembly installed TIME OF COMPLIANCE Optional, at owner's discretion REASON FOR REVISION Updated required parts in Table 1; clarified procedure This Service Instruction includes a procedure to install a...

August 31, 2005 MODELS AFFECTED New, rebuilt and overhauled engines from Lycoming with fuel pumps P/N LW-15399, LW-15472, LW-15473, and LW-16335 shipped between February 1, 2000 and September 15, 2005. Engine models affected are O- 235; O-290; O-340; (L)O and IO-320, -360, -540; AIO-320, -360; AEIO-320, -360, -540; HO-360; HIO-360; and TO-360. Fuel pumps P/N LW-15399, LW-15472, LW-15473, and LW...

SERVICE INSTRUCTION NO. 1280 D DATE: July 20, 2021 SUBJECT: Rotator Type Intake Valves MODELS AFFECTED: All Lycoming engines built with the conventional, large head intake valve No. 73117 including: IO-360-A, -C, -D; AIO-360-A, -B; HIO-360-A, -C; LIO-360, TIO-360-A, IO-720-A, -B, -C; VO, IVO, TVO, TIVO-540; IGO, IGSO-540, IO-540-A,B,E,G,K,L,M,P,S; TIO-540-A,F,J,N and LTIO-540-F,J,N. Engines...

October 5, 2015 MODELS AFFECTED IO-320, -360, -390, -540, -580; AEIO-320, -360, -390, -540; LIO-320-B1A; O-320-B2D, -D1D; (L)O-360-A1H6, -A1N6, -A1G6D; HIO-360; LIO-360; O-360-A1H, -A2G, -A4G, -A4J, -A4K, -A1G6, -C1F, -C4F; O-540-L3C5D; and TO-360-C1A6D TIME OF COMPLIANCE 50 hours from the issue date of this Service Bulletin or the next regularly scheduled maintenance event (whichever occurs first...

DATE RELEASED: July 1978 TITLE: O & LO-360 (76 Series) Parts Catalog DOCUMENT PART NUMBER: PC-123 MODELS AFFECTED: O-360-E1AD, O-360-E1A6D, O-360-E1BD, O-360-E2AD, O-360-E2BD

DATE RELEASED: June 2007 TITLE: O-360 (76 Series) Operator's Manual DOCUMENT PART NUMBER: 60297-25 MODELS AFFECTED: LO-360-E1A6D, O-360-E1AD, O-360-E1A6D, O-360-E1BD, O-360-E2AD, O-360-E2BD

October 30, 2015 MODELS AFFECTED All O-360-A4A and -A4J series engines with serial number up to and including L-23659-36A, IO-360-B4A series engines with serial number up to and including L-17977-51A (not installed on Piper PA28-181 (Archer III) aircraft) and rebuilt engines shipped prior to August 17, 1977 are subject to this modification. Also, any O-360 model converted to O-360-A4A or -A4J must...

DATE RELEASED: June 2010 TITLE: O, LO & TO-360 Parts Catalog DOCUMENT PART NUMBER: PC-306-2 MODELS AFFECTED: O-360-B2A, O-360-C1A, O-360-C1C, O-360-C1E, O-360-C1F, O-360-C2A, O-360-C2C, O-360-C2E, O-360-D2A, O-360-F1A6

DATE RELEASED: August 1985 TITLE: O, IO, HO & HIO-360 Parts Catalog DOCUMENT PART NUMBER: PC-106 MODELS AFFECTED: O-360-A1A, O-360-A1AD, O-360-A1C, O-360-A1D, O-360-A2A, O-360-A2D, O-360-A2E, O-360-A3A, O-360-B2A, O-360-C2A, O-360-C2B, O-360-C2C, O-360-C2D, O-360-D2B, O-360-D2A

DATE RELEASED: July 1980 TITLE: O-360-A Parts Catalog DOCUMENT PART NUMBER: PC-306-1 MODELS AFFECTED: O-360-A1A, O-360-A1AD, O-360-A1F6, O-360-A1F6D, O-360-A1G6, O-360-A1G6D, O-360-A1LD, O-360-A2A, O-360-A2D, O-360-A2F, O-360-A2G, O-360-A3A, O-360-A3AD, O-360-A4A, O-360-A4G, O-360-A4J, O-360-A4K, O-360-A5AD