TM 5-3810-300-24-&P-3
Flywheel 1.4
to the threads and to the bolt head contact area
(underside) of the remaining bolts. The bolt threads
must be completely filled with International Compound
No. 2 and any excess wiped off.
NOTE: International Compound No. 2 must
never be used between two surfaces where
maximum friction is desired, as between the
crankshaft and the flywheel.
8. Install the remaining bolts and run them in snug.
9. Remove the two bolts used temporarily to retain the
flywheel, apply International Compound No. 2 as
described above, then reinstall them.
10. Use an accurately calibrated torque wrench and
tighten the bolts to 50 lb-ft (68 Nm) torque.
Fig. 4 - Torque-Turn Limits
11. Turn the bolts an additional 90 -120 (Fig. 4) to
obtain the required clamping.
Install Flywheel
NOTE: Since the torque-turn method
1. Install a new oil seal ring (if used).
provides more consistent clamping than the
former method of flywheel installation, bolt
2. Attach the flywheel lifting tool and, using a chain
torque values should be ignored.
hoist, position the flywheel in the flywheel housing (use
guide studs). Align the flywheel bolt holes with the
IMPORTANT: When a clutch pilot bearing is
crankshaft bolt holes.
installed, index the flywheel bolts so that the
corners of the bolt heads do not overlap the
3. Install the clutch pilot bearing (if used).
pilot bearing bore in the flywheel. Thus, one
of the flats of each bolt head will be in line
4. Install the washer type pilot bearing retainer, if used.
with the bearing bore. Always rotate bolts in
To install a split tube type retainer, drive the retainer in
the increased clamp direction to prevent
flush with the end of the crankshaft with a soft hammer.
underclamping.
CAUTION: Do not mar the bearing contact
12. Mount a dial indicator on the flywheel housing and
surface of the retainer.
check the runout of the flywheel at the clutch contact
face. The maximum allowable runout is .001 "total
5. Install two bolts through the scuff plate 180 from
indicator reading per inch of radius (or .001 mm per
each other. Snug the bolts to hold the flywheel and scuff
millimeter of radius). The radius is measured from the
plate to the crankshaft. Remove the guide studs.
center of the flywheel to the outer edge of the clutch
contact face of the flywheel.
6. Remove the flywheel lifting tool.
7. Apply International Compound No. 2, or equivalent,
Page 85
