REPAIR INSTRUCTIONS, PART 1
Page 223
304
Figure 304 — Clamp Assembly Tool
11. Install the magnetic stand, 9999696, and
dial indicator, 9999683, so that the tip of the
dial indicator rests on a tooth of the
camshaft gear.
Check the gear backlash by rotating the
camshaft gear back and forth slightly to
measure the backlash. For backlash
specification, refer to the SPECIFICATIONS
section.
305
Figure 305 — Camshaft Backlash Check
12. If the backlash measurement is out of
specification, adjust the gear flank clearance
as follows:
a. Loosen the J 44514-5 clamp assembly
tool from the adjustable idler gear hub.
b. Loosen the adjustable idler gear hub
screws slightly. Loosening the hub
screws will allow the idler gear to be
moved slightly in/out from the camshaft
gear.
c. Insert a 0.1 mm (0.004 inch) thickness
gauge on the pressure side of the
adjustable idler gear tooth and
camshaft gear tooth by using feeler
gauge holder J 44935 and J 44514-6
feeler gauge.
d. While holding the adjustable idler gear
in against the thickness gauge and
camshaft gear, tighten, but DO NOT
torque, the idler gear hub fasteners.
e. Reinstall and tighten the J 44514-5
clamp assembly tool against the
adjustable idler gear.
f. Remove the feeler gauge from the
adjustable idle gear and camshaft gear.
g. Recheck the backlash. With the
specified backlash attained, replace
each adjustable idler gear hub screw
with new and tighten the screws to
specification one at a time so the
attained backlash is not disturbed.
13. Install the intermediate idler (double idler)
gearset (2) to the timing gear plate using
new fasteners.
1. Idler Gear 2. Camshaft Gear
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