Crankshaft Now Has A Fillet Radius At Front Main Bearing Journal
Usage:
D343 Industrial And Marine Engines, And 1693 Truck Engines
Description of Change: The front main bearing journal on all new, replacement crankshafts for D343 Industrial and Marine Engines, and 1693 Truck Engines now has a fillet radius at the front of the journal.
Formerly, the front of the No. 1 main journal did not have a fillet radius.
This change permits all of the main bearing journals on the crankshaft to be machined with the same grind stone.
Adaptable As: Direct replacement. The part numbers for the crankshafts did not change.
Caterpillar Information System:
1980/10/22 6V3184 Brush Group Available To Clean Crankshaft Oil Passages
1980/10/22 New Tools Available For Installation Of Crankshaft Seals And Wear Sleeves
1980/10/22 New Basic Oil Pump Groups Use Hardened Gears For Longer Service Life
1980/10/22 Understand The Effects Of Extended Oil And Filter Change Intervals
1980/10/01 Use Only Caterpillar Water Separator Elements
1980/10/01 Use Starter To Turn Crankshaft For 30 Seconds Or Until Oil Pressure Gauge Shows Pressure, Before Engine Is Started
1980/10/01 Do Not Use Room Temperature Vulcanizer Compounds Or Silicone Rubber Cements On O-Ring Seals In Engines; Do Not Use Too Much As Gasket Material
1980/10/01 6V3071 Seal Guide Keeps Seal In Position During Installation Of Transfer Pump
1980/10/01 New Timing Advance Weight Used
1980/10/01 Reverse Flow Check Valves And Check Valves With A Groove Can Not Be Used In Place Of Each Other
1980/10/01 Some Test Procedures And Specifications Changed For 9L6884 Fuel Injection Nozzle Assemblies
1980/10/01 List Of Service Publications
1980/10/22 Pressure Relief Fitting Added To Fan Drive Hub For More Positive Lubrication Of Front Bearing
1980/10/22 List Of Correct Fuel Injection Nozzle Assemblies To Use For Different Engine Applications
1980/11/12 Special Tools Available To Tighten Retainer Nuts For Clutch Drive Hubs Of 7211 And 7221 Marine Transmissions
1980/11/12 Kysor Air-Operated Shutdown Actuators For 3406, 3408, 1693 Truck Engines
1980/11/12 Double-Check Those Dimensions
1980/11/12 Take A Little Time: Check The "Supplements" Section Regularly For Important Information About Existing Publications
1980/11/12 Check Valve Added To Hydramechanical Shut-Off
1980/11/12 Inspect All Engine Oil And Fuel Filter Elements Before Installation
1980/11/12 Check For Correct Spring Retainer On Oil Pump Bypass Valve When Oil Pan Is Removed
1980/11/12 Coolant Conditioner Elements Are Now Available For 3208 Engines
1980/11/12 Improved Cable Assembly For Mechanical Shut-Off Group
1980/11/12 Modification Of Puller Bolt Prevents Thread Damage During Removal Of Sleeve From Sleeve Metering Fuel System