Shorter Bolts Now Used In Exhaust Manifold Support
Usage:
3408 Truck Engines
Description of Change: Two of the bolts used to hold the 9N2585 Exhaust Manifold Support to the flywheel housing are now .25" (6.4 mm) shorter. The location of these bolts is on each side of the oil supply hole for the air compressor. The former bolts were too long and some time hit the bottom of the holes before they were tight. When the bolts hit the bottom of the holes before they tighten, engine oil can leak from between the support bracket and flywheel housing.
Adaptable To: All 3408 Truck Engines.
Location of bolts.
Caterpillar Information System:
1977/05/25 New Rotor Assembly For Engine Oil Pump Has A Drilled Passage For Better Lubrication Of Oil Pump Bearing
1977/05/13 New Fuel Nozzle Assembly Available
1977/05/13 Gasket For Water Temperature Regulator Now Has Larger Vent Passage
1977/05/13 Improved Keystone Piston Assembly
1977/05/13 Improved Air Cleaner Group
1977/05/13 Guide Assembly For Dipstick (Oil Level Gauge) Now Has Thicker Walls
1977/05/13 New Crankshaft Front Seal And Wear Sleeve Permit Crankshafts With Seal Wear To Be Used Again
1977/05/13 New Information On Caterpillar Cooling System Inhibitor
1977/05/13 New 5P4185 Fuel Pump Timing Pin To Be Used Only On 3408 And 3412 Engines
1977/05/03 New Socket Assembly To Tighten The Bolts That Fasten The Sleeve Levers To The Sleeve Shaft
1977/05/03 Improved Cylinder Block With Spacer Plate Used With New Cylinder Heads, Cylinder Head Gaskets, Cylinder Liners And Timing Gear Housing
1977/05/03 Special Tools For Complete Repair Of Water Pump In Direct Injection Engines
1977/05/25 Flare Nut Wrenches Available
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1977/05/25 Parts In 1P3075 Seal Puller Group Available Separately
1977/06/08 Improvements To Fuel Injection Pump And Governor
1977/06/22 Water Pump Has Stronger Pulley
1977/06/22 New Adapter Group For Use With Fuel Injection Test Bench
1977/06/22 List Of Service Publications
1977/06/22 Fabricated Tools For Assembly And Disassembly Of 7271 Marine Transmission
1977/06/22 New Gasket Used At The Outlet Flange On Heavy-Duty Air Cleaner Group
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