C6.6 Industrial Engine Caterpillar

Illustration 1	g02113434
Typical example

(1) Tighten the threaded inserts to the following torque. ... 30 N·m (22 lb ft)

(2) Retaining clip

(3) Spring

(4) Inlet rocker arm

Diameter of the rocker arm bore ... 25.013 to 25.051 mm (0.9848 to 0.9863 inch)

(5) Exhaust rocker arm

Diameter of the rocker arm bore ... 25.013 to 25.051 mm (0.9848 to 0.9863 inch)

Clearance

Maximum clearance of both the rocker arm bores. ... 0.089 mm (0.0035 inch)

The service limit for both rocker arm bores ... 0.17 mm (0.0067 inch)

(6) Guide

(7) Rocker shaft

Diameter of the rocker shaft ... 24.962 to 24.987 mm (0.98275 to 0.98374 inch)

(8) Retaining clip

(9) Spring

Illustration 2	g01850497
Tightening sequence

Tighten the fasteners in the sequence that is in illustration 2. Tighten the fasteners to the following torque. ... 35 N·m (26 lb ft)