Larger Washer And Longer Bolt Used On Magneto Mounting Flange{1552,1556}
Usage:
3508 ( 2JF ),
3512 ( 4KC ),
3516 ( 3RC ) SI Industrial Engines
Description of Change: A larger washer is used on the magneto mounting flange. The new washer is 25 mm (1 in) in diameter compared to 18.5 mm (.73 in) diameter for the former washer. The new washer keeps the bolts from damaging the mounting flange when the bolts are tightened. Also, a longer mounting bolt is used with the new washer.
Adaptable To: The new 1A2029 Bolt is a direct replacement for the former 0S1594 Bolt. The new 9M6527 Washer is a direct replacement for the former 5M2894 Washer. Three bolts and washers are required.
Side view of magneto group. Location of new bolts and washers in gas engine ignition group.
Caterpillar Information System:
1991/07/08 New Crankshaft Seal Groups Provide Increased Protection From Dirt And Dust{1160,1161}
1991/07/08 Full Load Setting (FLS) And Full Torque Setting (FTS) Should Be Correctly Programmed{1901,0782,1257,1908,7557}
1991/07/08 New Dual Service Program Module (SPM) Available{1901}
1991/07/08 Dowel Hole Removed From 8N3946 Governor Housing Improves Service Life{1287}
1991/07/08 Caterpillar Original Equipment White And Yellow Paint Is Available In Aerosol Cans For Touch-Up Purposes{0652,7559,7581}
1991/07/01 Larger 7N1308 Secondary Air Filter Can Be Used In Place Of 1P8482 Secondary Air Filter{1054}
1991/07/01 New Exhaust Manifold Gasket Available{1059}
1991/07/01 New Thermostatic Switches Used In Air Conditioning Systems{7320}
1991/06/24 Correct Adjustment And Installation Procedure For Engine Speed Timing Sensor{1912}
1991/06/24 New Aftercooler Core Assembly With Increased Corrosion Resistance Available As An Attachment For Landfill Applications{1064}
1991/06/24 New Flame Arrestor Assembly Used In Flame Arrestor Group{1050}
1991/06/24 Air Starter Relay Valve Improved{1462}
1991/07/22 New Video Tape, SEVN1962, Shows Correct Procedures To Counterbore Top Deck Of Cylinder Block And Install Liner Insert {1201,0374,1216}
1991/07/22 New Throttle Actuator In Governor Groups Improves Engine Stability {1289}
1991/07/22 New Return Spring Used In Unit Injectors {1290}
1991/07/22 New Turbocharger Turbine Nozzle Provides Higher Boost And Lower Exhaust Temperatures {1052}
1991/08/12 Do Not Use RTV Sealant On Valve Cover Gaskets{1107,1120,7555}
1991/08/26 New Hose Used To Connect Turbocharger Compressor Outlet To Air To Air Aftercooler (ATAAC) Inlet Tubing {1052,1063}
1991/08/26 Initial Valve Lash Checking Interval Changed {1105}
1991/08/26 New Water Temperature Regulator (With Internal Vent Valve), Regulator Housing, Pipe, And Gasket In Water Lines Group {1355}
1991/08/26 New Exhaust Manifolds And Wastegate Mounting Used On 3508 (2JF), 3512 (4KC), 3516 (3RC) SI Industrial Engines {1059,1057,1065}
1991/08/26 Rectifier and Suppressor Changes to 807, 808, 809 and 815 Frame Generators {4465,4466}
1991/08/26 New Fuel Injection Lines Used On 3306B (63Z) Truck Engines {1252}
1991/09/02 Always Use A Digital Voltmeter For Battery Testing{0785,0709,1401,7468}