TM 5-3895-359-14&P
12. Rotate the gears as required to reveal the end
Remove Camshaft or Balance Shaft
bearing retaining bolts. Remove the bolts as shown in
Fig. 5.
Whenever an engine is being completely reconditioned
or the camshaft, gears, bearings or thrust washers need
13. Withdraw the camshaft bearing and gear assembly
replacing, remove the shafts from engine as follows:
and the balance shaft and gear from the rear end of the
cylinder block.
1. Drain the engine cooling system.
If the thrust washers, located between the bearings and
2. Remove all of the accessories and assemblies
thrust shoulders at the front end of the shafts are not
necessary to facilitate mounting the engine on an
removed with the shafts, they should be pulled out when
overhaul stand (Page 10-2-4).
removing the bearings.
3. Mount the engine on the overhaul stand. Be sure the
14. The cam and balance shaft front end bearings and
engine is securely mounted on the overhaul stand before
thrust washers may be removed after taking out the
releasing the lifting sling.
bolts that hold the bearings to the end plate and cylinder
block. If necessary, use a pry bar under the bearing
4. Remove the cylinder head (refer to Page 10-2-20).
flange.
5. Remove the flywheel and flywheel housing (refer to
Page 10-2-71 and 10-2-75).
Remove
Camshaft
(Flywheel
Housing
and
6. Remove the front balance weight cover and place a
Transmission in Place)
wood block between the balance weights (Fig. 4) or
The camshaft may be removed and replaced without
wedge a clean rag between the camshaft and balance
removing the flywheel housing and disconnecting the
shaft drive gears at the rear of the engine.
transmission.
7. Remove the gear nut retaining plates.
1. Drain the engine cooling system.
8. Remove the gear retaining nuts on the gear end of
2. Remove the parts, accessories and assemblies that
the camshaft and the balance shaft. Remove the nut
are necessary to facilitate the removal of the flywheel
and lock washer from the balance weight end of each
shaft.
9. Remove the front balance weights.
10. Remove the thrust washers between the bearings
and the balance weight hubs.
11. Remove the lock screws that secure the camshaft
intermediate bearings.
Fig. 6. Removing Camshaft With Camshaft Gear
Puller J 1902-01 and Adaptor Plate Set J 6202
Fig. 5. Removing or Installing Shaft Bearing
Retainer Bolts
10-2-108