(2) Lubrication is supplied under pressure to the
(3) Mount the engine on an overhaul stand. Be
sure the engine is securely mounted on the stand be-
c a m s h a f t and balance shaft end bearings by oil
fore releasing the lifting sling.
passages. Oil is forced through an oil passage in the
(4) Remove the cylinder head (para 3-25).
camshaft which lubricates the camshaft intermediate
(5) Remove the flywheel and the flywheel housing
b. Removal of Camshaft and Balance Shaft.
(paras 3-32 and 3-33).
(6) Remove the bolts which secure the gear nut re-
(1) Drain the cooling system (TM 10-
tainer plates to the gears. Remove the retainer plates.
(2) Remove the engine (para 2-5) and accessory
(7) Wedge a clean rag between the gears as shown
parts and assemblies necessary to mount engine on an
in figure 3-118. Remove the nuts from each end of
both shafts with a socket wrench.
(8) Remove the pulleys from the camshaft and the
balance shaft and remove the engine upper front cover
(9) Remove the oil slinger from the front end of
(10) Remove the two thrust washer retaining
bolts that secure the camshaft and balance shaft
thrust washer to the cylinder block, by inserting a
socket wrench through a hole in the web of the gear.
(11) Withdraw the shaft, thrust washer, and gear,
as an assembly, from the rear of the cylinder block.
c. Disassembly of Camshaft and Balance Shaft.
(1) Refer to figure 3-120 and disassemble the
camshaft and balance shaft in numerical sequence.
(2) Press the gear from the camshaft (fig. 3-121).
Place a wood block under the shaft so the threads will
not be damaged when the shaft is pressed from the
(3) Remove key (18, fig. 3-120), thrust washer
(16) and spacer (17) from camshaft (2).
(4) Press the gear from the balance shaft (fig.
3-121). Place a wood block under the shaft so the
threads on the opposite end of the shaft will not be
damaged when the shaft is pressed from the gear.
(5) Remove the thrust washer (16, fig. 3-120)
from balance shaft (19).