1979/03/14 Caterpillar


Main Bearings Now Have Larger Diameter Oil Hole For Better Lubrication Of Main And Rod Bearings

Usage:




3208 Engines

Description of Change: The upper halves of the main bearings have been changed on 3208 Engines starting with Serial Numbers 40S74512 and 90N33517. The new upper main bearings, numbers 2, 3, 4 and 5, have a larger oil supply hole than the former main bearings. The diameter of the oil supply hole has been increased from .22" (5.6 mm) to .31" (7.9 mm).

Adaptable As: The new main bearings are a direct replacement for the former main bearings used in 3208 Engines (40S1-Up and 90N1-Up).

Caterpillar Information System:

1979/03/14 8L4525 Flange Is Available Again For Parts Service Of 3192 Marine Transmissions
1979/03/14 Improvements Made To Fuel Injection Pump And Governor Group
1979/03/14 New Engine Cylinder Block Used
1979/03/14 New Fuel Injection Nozzles Are Used In 3208 Engines
1979/03/14 New Piston And Connecting Rod Are Tapered In Area Of Piston Pin
1979/03/14 New Oil Filter And Filter Base Assemblies
1979/03/07 New Exhaust Pipe Connector Makes A Tighter Seal Between Pipe And Manifold
1979/03/07 Retroreflective Tape Makes Phototach Kit Easier To Read
1979/03/07 Window Cover Kit Now Available For ENM Service Meters
1979/03/07 Use SIRS To Keep Service Literature Current
1979/03/07 Check Valve Must Be Adjusted Correctly To Let Fuel Flow Through The Return Line And Back To The Tank
1979/03/07 New Fuel Injection Lines Groups Use A Different Fuel Injection Nozzle Assembly
1979/03/14 Maintenance Procedures For Extended FPTO Life On 3408 And 3412 Marine Engines
1979/03/14 Larger Diameter Washer Is Used To Hold Air Transfer Pipe In Aftercooler Flange
1979/03/14 List Of Service Publications
1979/03/14 Revision To Guideline For Reusable Parts Is Available
1979/03/14 Information About The Use Of Earlier Cylinder Heads And Liners With Spacer Plate Cylinder Blocks; List Of Earlier Articles
1979/03/14 Replacement Bushing Available For Cast Iron Rocker Arms Only
1979/04/04 New Fabricated Tools Available For Service Work On 7211 And 7221 Marine Transmissions
1979/04/04 New Oil Jet Tube In Cylinder Block Gives More Clearance For Pistons And Connecting Rods
1979/04/04 Four Crankshaft Rear Seals Are Available For Use On 3304 And 3306 Engines
1979/04/04 List Of Service Publications
1979/04/04 New Woodward Governor Control Used On Diesel Engines; Former Control Now Used On Gas Engines Only
1979/04/04 Improved Fuel Priming Pumps Give Longer Service Life
Back to top
The names Caterpillar, John Deere, JD, JCB, Hyundai or any other original equipment manufacturers are registered trademarks of the respective original equipment manufacturers. All names, descriptions, numbers and symbols are used for reference purposes only.
CH-Part.com is in no way associated with any of the manufacturers we have listed. All manufacturer's names and descriptions are for reference only.