Specifications

Select a feeler gauge for the correct valve lash
specification.
Valve Lash Specifications
Intake Exhaust
0.35 mm 0.68 mm
[0.014-inch] [0.027-inch]
Insert the feeler gauge between the top of the crosshead
and the rocker lever pad.
Two different methods for establishing valve lash clear-
ance are described below. Either method can be used;
however, the torque wrench method has proven to be the
most consistent.
• Torque Wrench Method: Use theinch pound torque
wrench, part No. 3376592, (normally used to set
preload on STC injectors), and tighten the adjusting
screw.
Torque Value: 0.6 to 0.7 N•m [5 to 6 in-lb]
• Feel Method: Tighten the adjusting screw until a
slight drag is felt on the feeler gauge.
Hold the adjusting screw in this position. The adjusting
screw must not turn when the lock nut is tightened.
Torque Values:
With torque wrench adapter, 54 N•m [40 ft-lb]
Part No. ST-669
Without adapter 68 N•m [50 ft-lb]
After tightening the lock nut to the correct torque value,
check to make sure the feeler gauge will slide backward
and forward between the crosshead and the rocker lever
with only a slight drag.
Injector and Valve Adjustment Engine Assembly (00-02)
N14Page 0-108