Cylinder Block Has New Cover With An Oil Return Connection For Rockford Fan Drive{1201}
Usage:
All 3406 Truck Engines
Description of Change: On the right side of the cylinder block of 3406 Truck Engines, a flange with a 3/8 in NPTF hole is now used, to provide a connection for the oil return line on the Rockford Fan Drive. Formerly, a cover which did not have a hole through it was used at this location. The Rockford Fan Drive is used by some on-highway trucks.
Adaptable As: The new parts, used together, are adaptable to all earlier 3406 Truck Engines.
Caterpillar Information System:
1978/04/24 Oil Grooves And Harder Gears Are Now Used In The Oil Pumps On 6.25" Bore Vee Engines{1304}
1978/04/24 Do Not Use The 5B1401 Cleaning Tool Group To Clean The Orifice In Capsule-Type Fuel Injection Nozzles{0650,1254}
1978/04/24 Use 6V100 Tool Arrangement To Remove And Install Piston Pin Bearings For Both Tapered And Standard Connecting Rods{0620,1218}
1978/04/17 Improved Oil Suction Tube Assembly {3300,3302}
1978/04/17 Locating Bushings For The 5P3550 Rod Boring Machine Will Now Hold Tapered Piston Pin Bushings {0626}
1978/04/17 Improved Yokes, Hardened Washers And More Torque Keep Valve Lifter Guides Tight {1209}
1978/04/10 New Lifting Eye Group Used On 3412 Industrial Engines Equipped With Turbochargers{1101,1000}
1978/04/10 New 5P9693 Reusable Cable Tie For Storage Of Wires, Cables And Tubing{0630}
1978/04/10 New Piston Group With Better Service And Operation Characteristics Now Available{1214}
1978/04/03 A Gasket Group Is Available To Give Improved Sealing For The Oil Supply To The Rocker Arms On Early Engines{1101,1102,1221}
1978/04/03 Procedure For Alignment Of Transmission Mounting Parts On 1100 Series And 3208 Truck Engines With Allison MT640, MT650, And AT540 Series Transmissions{3000,1156,1157}
1978/03/27 Correct Adjustment Of The Governor Control Linkage In Truck Engines Is Necessary To Prevent Low Power{1265,1269}
1978/04/24 Improved Water Separator Element And Retaining Clamp Stops Fuel Leakage{1250}
1978/04/24 New Oil Pressure Gauge Available For Marine Transmissions Used On D348, D349, D353, D379, D398, D399, 3406 And 3408 Marine Engines{7457,3300}
1978/05/01 5P8719 Hydraulic Hand Pump Decreases The Time Needed To Move Ram Pistons Under No Load{0621}
1978/05/01 New 5P8709 Piston Tool Group For The Alignment Of Piston Cooling Jets{0650}
1978/05/01 Correct Installation Of Lip-Type Seals In Hydraulic Oil Pumps{5055,5073}
1978/05/01 O-Ring Seals Of A Different Material Are Now Used On The Outside Diameter Of The Servo Cylinder In Governors{1264}
1978/05/01 External (Outside) Oil Lines Now Used Instead Of The Oil Passage In The Cylinder Block And Flywheel Housing{1307}
1978/05/01 Double-Walled Fuel Injection Lines Protect Unattended Industrial And Marine Engines{1252,0353}
1978/05/01 Improved Tube Assemblies For Engine Oil Lines{1307}
1978/05/01 New 5P7335 Rack Adjusting Tool Available{0654,1257,1264}
1978/05/01 Water Separator Added To Give Protection To The Sleeve Metering Fuel System{1250}
1978/05/08 New Water Temperature Regulator Housing Cover Has A Check Valve{1380,1355}