Top Rings For Pistons Have Two Designs
Usage:
All 3208 Truck Engines
There are two designs for the top rings for pistons used in all 3208 Engines. One ring design has a step at the top, inner diameter. The other design has a bevel at the top, inner diameter.
The operation characteristics of the two ring designs are the same. Rings of either design can be used in place of the other.
The difference in design is the result of the methods used to machine the rings.
Comparison of ring designs.
Caterpillar Information System:
1981/09/09 Different O-ring Seals Used In Exhaust Gas Recirculation Actuator Group
1981/09/09 6V3100 Diesel Timing Indicator Group Available To Check Engine/Fuel System Timing And Mechanical Advance During Operation
1981/09/09 Improvements To Optional Modification Of 5P4150 Nozzle Tester
1981/09/09 Standard Interval For Oil Changes Now 20,125 Kilometers (12,500 Miles) Or 250 Service Hours
1981/09/09 Certification Film Necessary On Engines Adjusted For High Altitude Operation
1981/09/09 O-Ring Seal Materials And Applications: Use Only The Correct Seal For The Specific Installation
1981/09/09 Use Of Different Anti-seize Compound Prevents Problems With S.O.S. Tests
1981/09/09 Troubleshooting The Fuel Ratio Control Group For Low Power Complaints
1981/08/18 New Information System For Engine Gasket Kits
1981/08/18 New Spacers Used With Larger Valve Springs
1981/08/18 Use 6V4805 Valve Seat Extractor Group To Remove Valve Seat Inserts
1981/08/18 Indications Of High Oil Temperatures In Brakesaver Circuit Can Be Caused By Wrong Gauge Connection
1981/09/09 New Idler Pulley Groups Improve Service Life Of Vee-belt
1981/09/09 List Of Service Publications
1981/09/09 Explanation Of Differences In Timing Advance Information
1981/09/09 Thrust Washer Used In Pump Housing For Sleeve Metering Fuel System
1981/09/23 Use Only EPA-Approved Rack And Idle Setting; Change Seal, Data Plate
1981/09/23 Higher Torque Used With Later Head Bolts
1981/09/23 Comparison And Applications Of Six And Eight Counterweight Crankshafts
1981/09/23 Changes To Brakesaver Groups Give Longer Service Life
1981/09/23 FT1632 Bolt Used During Removal Of Sleeve From Sleeve Metering Fuel System
1981/09/23 Troubleshooting: Water Pump Failures
1981/09/23 Spring Pins No Longer Used In Water Pump Drive Gear
1981/09/23 Timing Pin Removed From Governor And Fuel Injection Pump Group; Change To Service Manuals