When Timing The Engine, Be Sure The Timing Bolt Is Installed In The Correct Hole In The Flywheel{1156,1251,1281}
Usage:
The 9N5836 Arrangement of the 3406 Truck Engine is used in some models of Oshkosh trucks. This engine is equipped with a 6N9667 Flywheel Assembly which has a circle of twelve one inch (25.4 mm) diameter holes near the outer circumference. One of these twelve holes is near the hole into which the timing bolt installs. Unless a person is careful when timing the engine, it is possible to install the timing bolt into this hole instead of the correct hole which is smaller and has threads.
Location of one inch (25.4 mm) diameter holes in relation to holes for timing bolt.
Caterpillar Information System:
1979/08/06 Use Correct Installation Procedure For Clutch Pilot Bearing In Rear Power Takeoff{3055}
1979/08/06 New Tools Are Available For Gasket Removal And Surface Reconditioning{0670}
1979/07/09 New Cylinder Liner Has Improved Design To Keep Liner Temperatures Lower{1216}
1979/07/09 New Shaft Assembly Used In Governor Group And New Coupling Assembly Used In Drive Group For Governor And Fuel Injection Pump{1264,1288}
1979/07/09 New Valve Cover Gasket Has Better Material{1107}
1979/07/09 Caution Label Added To 5P4150 Nozzle Testing Group{0651}
1979/07/02 Fuel Injection Line For Injection Test Bench Is Available From Caterpillar{0652,1250}
1979/07/02 Improved Engine Design Uses Cylinder Block With Spacer Plate And New Crankshaft Thrust Plates{1000}
1979/07/02 6V109 Torque Multiplier Available For Use With Hydraulic Cylinder Repair Stand{0614}
1979/07/02 To Prevent A Possible Change In The Fuel Rack Setting, A Specific Assembly Procedure Must Be Used To Tighten The Bolt On The Governor Stop Collar{1259,1257,1250}
1979/06/25 6V2010 Polishing Stone Available{0622}
1979/06/25 New Air Inlet Tube Gives Enough Room To Install A "Jake Brake"{1058,1119}
1979/08/06 Front Accessory Drive Group Changed; New Drive Parts For Fuel Transfer Pump{1256,1206}
1979/08/06 Changes Made To 8S2243 And 8S4613 Wrenches Used On Fuel Injection Pumps{0612,1251}
1979/08/13 Splash Shields Added To Caterpillar Fuel Injection Test Bench{0652}
1979/08/13 New Seal Used Under Retaining Bushing For Fuel Injection Pump Bonnet{1251,1253,1286}
1979/08/13 5P936 Liner Seat Insert Available For 6.25 Bore Engine Blocks With Counterbores{1217}
1979/08/13 6V14 Hydraulic Cylinder Group Now Available{0621}
1979/08/13 New 35-Ampere Alternator Used On Some Engines In Caterpillar Equipment{1405,1406}
1979/08/13 New Cylinder Head Gasket Has Smaller Diameter Cylinder Openings To Improve Location Of Combustion Seal Ring{1101,1201}
1979/08/13 Sealant Now Used On Pipe Plugs At The Bottom Of The Oil Filter Base Assembly To Prevent Oil Leakage{1306}
1979/08/20 Flex Plate Kits Are Now Available For Vickers Vane-Type Hydraulic Pumps{5055}
1979/08/20 Turbocharger Bearings Are Now Available In More Different Sizes For Better Turbocharger Reconditioning{1053}
1979/08/20 New Rear Cover And Gasket Used On Water Pump{1361,1350}