Do Not Use The 5B1401 Cleaning Tool Group To Clean The Orifice In Capsule-Type Fuel Injection Nozzles
Usage:
In the Fuel System Tools section of the Tool Guide on page 4 of Group 4 there is a reference to the 5B1401 Fuel Injection Valve Orifice Cleaning Tool Group. This reference says that this tool group can be used to clean the orifice in flat seat-type and capsule-type fuel injection valves. This recommendation is wrong. Only flat seat-type fuel injection valves can be cleaned with the 5B1401 Cleaning Tool Group. Use of this tool group on capsule-type fuel injection valves can damage the nozzle orifice and/or the check valve. Make a note of this change in your Tool Guide and on the tool group.
Caterpillar Information System:
1978/05/03 New Type Seal Used On Water Separator Elements
1978/05/03 Double-Walled Fuel Injection Lines Protect Unattended Industrial And Marine Engines
1978/05/03 Stronger Weights And Gear Used In Automatic Timing Advance
1978/05/03 Shorter Hoses Now Used For The Actuator Control Valve In The Exhaust Gas Recirculation System
1978/04/19 Cylinder Block Has New Cover With An Oil Return Connection For Rockford Fan Drive
1978/04/19 Improved Water Separator Element And Retaining Clamp Stops Fuel Leakage
1978/04/19 New 5P9693 Reusable Cable Tie For Storage Of Wires, Cables And Tubing
1978/04/19 Use 6V100 Tool Arrangement To Remove And Install Piston Pin Bearings For Both Tapered And Standard Connecting Rods
1978/04/19 Improved Yoke, Hardened Washer And More Torque Keep Valve Lifter Guides Tight
1978/04/19 New Lifting Eye Group Used On 3412 Industrial Engines Equipped With Turbochargers
1978/04/05 More Torque Now Used To Tighten The Retainer Nut For Turbocharger Compressor
1978/04/05 Soft Washers And Lockwashers Are Now Used With The Mounting Bolts For Air-Fuel Ratio Control
1978/05/03 Timing Dimension For Fuel Injection Pumps Changed; 1P7410 Timing Plates Have More Exact Degree Marks
1978/05/03 Procedure For Alignment Of Transmission Mounting Parts On 1100 Series And 3208 Truck Engines With Allison MT640, MT650, And AT540 Series Transmissions
1978/05/03 Oil Grooves And Harder Gears Are Now Used In The Oil Pump On 6.25" Bore Vee Engines
1978/05/03 List Of Service Publications
1978/05/03 New 5P7335 Rack Adjusting Tool Available
1978/05/03 Longer Hoses Used At Radiator Lower Hose Connections
1978/05/03 O-Ring Seals Of A Different Material Are Now Used On The Outside Diameter Of The Servo Cylinder In Governors
1978/05/03 Improved Oil Suction Tube Assembly
1978/05/03 New 5P8709 Piston Tool Group For The Alignment Of Piston Cooling Jets
1978/05/03 One-Piece Seat Used For Governor Spring
1978/05/03 Possible Problems With Fuel Filters
1978/05/03 External (Outside) Oil Lines Now Used Instead Of The Oil Passage In The Cylinder Block And Flywheel Housing