1994/01/10 Caterpillar

Clarify Usage Of Parts Service Cylinder Head Gaskets{1124}

Usage:

3200 Family Of Engines

Reference: Service Magazine; May 15, 1989; Page 7; "New Head Gasket Used".

Two cylinder head gaskets are used in production and parts service of the 3200 Family of Engines.

The 7C-1599 Cylinder Head Gasket is used in all new production 3208 engines. This gasket has a green bead around the sealing surfaces, and the fire ring inside diameter is 117.12 ± 0.37 mm (4.611 ± .015 in).

The 7W-2059 Cylinder Head Gasket is used in all new production 3204 engines as well as 3208 remanufactured engines. This gasket has an orange bead around the sealing surfaces, and the fire ring inside diameter is 119.50 ± 0.37 mm (4.705 ± .015 in).

PLEASE NOTE THE COLOR AND DIMENSIONAL DIFFERENCES IN THESE TWO GASKETS.

For parts service, the 7W-2059 Cylinder Head Gasket may be used in all 3204 or 3208 engines. The 7C-1599 Cylinder Head Gasket may only be used in 3208 engines with standard cylinder bores that have never been repaired with a cylinder sleeve. As shown above, the 7C-1599 Cylinder Head Gasket has a smaller inside diameter. Use of this gasket in engines that have had cylinder sleeves installed may lead to gasket failure due to the fire ring overlapping the flange of the cylinder sleeve.

The following charts identify the gasket kits that include the 7C-1599 Cylinder Head Gasket or the 7W-2059 Cylinder Head Gasket.

Caterpillar Information System:

1994/01/10 New Idler Pulley Assembly Used In Refrigerant Compressor Group{1802}

1994/01/10 Correct Position Of Clamp Assembly Is Required To Prevent Tie Rod Damage{4318,4329}

1994/01/10 New Rear Wheel Bearing Adjustment Procedures{4208}

1993/12/27 New Flexible Hose Assembly Used in the Exhaust Bypass Group {1057}

1993/12/27 Cleaning SR4 Generators {1404,4450}

1993/12/27 New Lamps For Tachometer And Speedometer {7450}

1993/12/27 New Temperature Switch Assembly And Tube Assemblies Used To Improve Torque Converter Temperature Sensing {7413}

1993/12/27 Air Filter Indicator Failure Due To Excessive Vibration {7452}

1993/12/27 Improved Front Idler Bearings Are Now Available {4159}

1993/12/20 Exhaust Brakes Can Not Be Installed On All Remanufactured 3208 Engine Arrangements {1119}

1993/12/20 Ether Starting Aid System {1456}

1993/12/20 New Turbine Type Air Starting Motor Group Provides Clearance For Block Side Cover Bolts {1451}

1994/01/17 Cold Weather Instructions For Nitrogen Charged Tension Cylinders And Low Nitrogen Pressure Alarm System {4197}

1994/01/17 Knocking Noise In Front Suspension Frame Group Can Be Eliminated With Shims {7200,7050}

1994/01/17 Brake System Servicing {4005}

1994/01/17 Improved 24-12 Volt Converters Available {1400,1421}

1994/01/17 List Of Entertainment Radios For Earth Moving And Agriculture Equipment {7300}

1994/01/17 9X6779 Radio Has No Memory {7338}

1994/01/17 New Tube Assembly With Bellows At Each End Used In Engine Air Lines Groups {1058}

1994/01/17 New Flywheel Assembly With Oil Dam Helps Prevent Premature Wear On Internal Splines {1156}

1994/01/17 New Control Assemblies Used In Fuel Injection Control Groups {1298}

1994/01/17 New Valve Cover Gasket Used {1107}

1994/01/17 Low Coolant Level Plate In Radiator May Cause False Coolant Level Readings {1353}

1994/01/24 New Flow Control Knobs Available To Improve Disassembly {5137}