3406E and 3456 Generator Set Engines Caterpillar

Illustration 1	g01097720
Typical example

Note: During assembly, inspect the following components for any foreign materials: the front face of the flywheel housing, the two sides of the flywheel housing gasket and the rear face of the cylinder block. These components must be free of the following substances: oil, fuel, water, gasket adhesive, assembly compounds and any other foreign material. Apply a small amount of 8T-9022 Silicone Gasket in order to fill the space between the cylinder block, the flywheel housing, and the oil pan before installing the oil pan gasket and the oil pan.

(1) To tighten the flywheel housing bolts, use the procedure that follows:

1. In a numerical sequence, tighten bolt 1 through bolt 9.

   Torque for bolts ... 100 ± 20 N·m (74 ± 15 lb ft)

2. In a numerical sequence, tighten bolt 10 through bolt 24.

   Torque for bolts ... 40 ± 10 N·m (30 ± 7 lb ft)

3. In a numerical sequence, again tighten bolt 1 through bolt 9.

   Torque for bolts ... 135 ± 20 N·m (100 ± 15 lb ft)

4. In a numerical sequence, again tighten bolt 10 through bolt 24.

   Torque for bolts ... 55 ± 10 N·m (41 ± 7 lb ft)

Illustration 2	g01097730
Typical example

(2) Plug

Tighten the plugs to the following torque. ... 55 ± 14 N·m (41 ± 10 lb ft)