New Crankshaft Seal Groups Used
Usage:
3408 Truck Engines
Reference: Truck Engine News, December 8, 1982, Page 4, "New Crankshaft Seal Groups Used ".
Description of Change: The reference article tells of new crankshaft seals used in some 3406 Engines. The new crankshaft seals are used on 3408 Truck Engines.
Adaptable As: The new 2W1733 (front) and 2W1734 (rear) Crankshaft Seal Groups are direct replacements for the 7N1999 Crankshaft Seal Group, effective with 28V4693.
Special Instruction, Form SMHS8507, comes with each new seal group. A new Special Instruction, Form SMHS8508 has installation information and a list of the tools needed to install the new seals.
Caterpillar Information System:
1985/03/01 Dowtherm 209 Full-Fill Coolant
1985/03/01 New Service Tools Available
1985/03/01 Cross Link Between Fuel Racks Has Smoother Surface
1985/03/01 Do Not Weld On Painted Surfaces
1985/03/01 3406B Truck Engines Have Been Improved For 1985
1985/02/01 Over Fueling Spring No Longer Used In Governor
1985/02/01 Correct Service Information For Air Fuel Ratio Controls Is Available In The Latest Service Manual
1985/02/01 Use Care When Removing Oil Pan And 9N3167 Plate
1985/02/01 Install Crankshaft Thrust Bearings Correctly To Avoid Damage
1985/02/01 New Guide Assembly Used In Oil Level Gauge Group
1985/02/01 New Pressure Conversion Chart Available
1985/02/01 New Temperature Recorders Available
1985/03/01 New Service Manual Binders Are Made From Thicker Material
1985/03/01 3208 Truck Engine Service Manual Available In Spanish
1985/03/01 A New Book "Analyzing Diesel And Natural Gas Engine Valve Failures " Is Available
1985/03/01 Internal Seals In 7000 Series Fuel Injection Nozzles Cannot Be Replaced
1985/03/01 List of Service Publications
1985/03/01 Installation Of Heli-Coils In Holes With Damaged Threads
1985/03/01 What Cost Failure
1985/04/01 Changes To Turbocharged Truck Engines For 1985
1985/04/01 Changes To Naturally Aspirated Truck Engines For 1985
1985/04/01 Use Of Fuel Injection Timing Information In The "Fuel Setting And Related Information" Microfiche
1985/04/01 Hardened Spacers Help Keep Bolts Tight
1985/04/01 New Compression Washers (Gas Seals) Used On 7000 Series Fuel Injection Nozzles