1987/09/01 Caterpillar


Be Sure To Correctly Tighten Turbocharger Clamp Assemblies

Usage:


All Caterpillar Engines Equipped With A Turbocharger

Be sure to correctly tighten the clamp assemblies that fasten the compressor housing and turbine housing to the cartridge. If a clamp assembly becomes loose, a housing may contact the compressor wheel or turbine wheel. This could result in damage to the turbocharger components. Use the procedure that follows to install the clamp assemblies. Make a note of this procedure in the appropriate Service Manual Disassembly and Assembly modules.

1. Be sure the clamp assemblies are correctly located on the housings and the cartridge. Be sure the housings are correctly oriented on the cartridge. Then tighten each clamp assembly nut or bolt to the specified torque.

2. Lightly tap all around the outside of each clamp assembly with a soft hammer to be sure it is seated.

3. Again, tighten each clamp assembly nut or bolt to the specified torque.

4. Repeat Steps 2 and 3 until each clamp assembly nut or bolt does not turn when the specified torque is applied.


Location of clamp assemblies.

Caterpillar Information System:

1987/09/01 New Timing Gear Housing Used In Front Housing Groups To Help Prevent Oil Leaks
1987/09/01 New Piston Cooling Jets Used
1987/09/01 Mid-Life Bearing Maintenance Recommendations
1987/09/01 Recommendations For Preventing Cooling System Damage
1987/08/01 Remanufactured Turbocharger Groups And Cartridges
1987/08/01 Remanufactured Short Blocks Available For All 3304 Engines
1987/08/01 Remanufactured Electronic Modular Control Panel Modules (EMCP) For Package Generator Sets
1987/08/01 List of Service Publications
1987/08/01 New Cylinder Liner Available
1987/08/01 Box Labels Available For Pleasure Craft Cruise Kits
1987/08/01 New Caterpillar Sea Trial Rules Of Thumb Pocket Reference Card Available
1987/08/01 Improved Gaskets Used In Central Structure Cover Groups, Jacket Water Lines Groups, Jacket Water Heater Groups And Water Aftercooler Groups
1987/09/01 Improved High Temperature Seals Available
1987/09/01 Engine Oil Refill Capacity Decreased
1987/09/01 Additional Engine Tilt Installation Angles And Engine Dipstick Markings
1987/09/01 New Turbochargers Have Several Improvements
1987/09/01 New O-Ring Seals Used In Water Lines
1987/09/01 Engine Oil Coolers Have Rubber End Sheets In Place Of Brazed Sheets
1987/09/01 Oil Flow Increased For Inlet Valve Lubricator
1987/09/01 New Digital Pyrometer Which Incorporates High Exhaust Temperature Alarm Now Used
1987/09/01 More Accurate And Easier Method To Adjust 8T1815 Or 6L5438 Main Shaft Bearing
1987/09/01 Improved Clutch Piston And Retraction Pins Available
1987/09/01 Four More Remanufactured Fuel Pump And Governor Groups Available
1987/10/01 Piston And Camshaft Changes
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