Additional Zinc Rods Improve Service Life Of Sea Water Heat Exchanger
Usage:
3208 Marine Engines (1Z4927-Up And 75V8760-Up)
Two 6L2283 Zinc Rods and two 6L2282 Plugs have been added to the 1W1051 and 4W9164 (Sea Water) Heat Exchanger Groups available for use on the 3208 Marine Engines shown above. The two rods and plugs, installed in the 8N9787 Bonnet Assembly (L.H.), will provide improved protection against corrosion in the sea water circuit of the heat exchanger.
NOTE: The zinc plugs should be inspected or replaced as needed every 75 SMU or two weeks, whichever occurs first.
In addition, the plug openings can be used to check temperatures and pressures in the engine cooling system during sea trials and when troubleshooting the engine.
Caterpillar Information System:
1985/04/01 New Outer Governor Spring And Torque Control Pin Used In Governor And Pump Groups
1985/04/01 Differential Oil Pressure Gauge For Oil Filter Shows High Differential Pressure
1985/04/01 New Main Shaft Bearing Assembly Has Reduced End Play
1985/04/01 Preferred Locations For Water Temperature Protection Devices
1985/04/01 Information For Ordering kPa or Dual Scale Gauges
1985/04/01 Improved Vibration Damper Guard Group Has Flexible Mounting
1985/04/01 Use Of Fuel Injection Timing Information In The "Fuel Setting And Related Information" Microfiche
1985/04/01 New Turbocharger Oil Supply Tube Assembly Used
1985/04/01 Changes To Exhaust Manifolds Help Prevent Broken Studs
1985/04/01 Crankcase Explosion Relief Valve Kit Available
1985/04/01 Several Types Of Automatic Voltage Regulators (AVR) Used In SR4 Generators
1985/04/01 Check Cylinder Block And Head Flatness Whenever There Is A Head Gasket Failure
1985/04/01 Improved Oil Ring For Pistons Eliminates Expander Problems That Lead To Ring Breakage During Installation
1985/04/01 New Compression Washers (Gas Seals) Used On 7000 Series Fuel Injection Nozzles
1985/04/01 Changes To Fuel Systems{1250,1251,1252,1253,1254,1100}
1985/04/01 Specification Changed For Engine Oil Capacity
1985/04/01 Make Sure Air Cylinder For Governor Actuation Is Correctly Adjusted
1985/04/01 Electric Hour Meter Failures
1985/04/01 List of Service Publications
1985/05/01 Visual Inspection Can Detect Chrome Plated Engine Valves
1985/05/01 New Governor Drive Group Has Longer Service Life
1985/05/01 System To Find Internal Fuel Leakage
1985/05/01 Exhaust Manifolds Now Use Locks And High Temp Bolts
1985/05/01 Extended Oil And Oil Filter Change Intervals