TM 5-3810-289-34
(3) Position oil pan to block, figure 3-171,
and secure with flatwashers, lockwashers and
capscrews. Tighten capscrews enough to hold oil pan
firmly in place.
(4) Using a straightedge, check rear surface
of block and oil pan to be sure these surfaces are flush
Note. Pan must be flush with rear of block to
prevent oil leakage and distortion of flywheel housing.
(5) After checking pan-to-block alinement,
loosen all capscrews mounting pan to block.
Caution: Oil leakage may occur if oil pan
capscrews are tightened before flywheel housing
installation.
(6) Install flywheel housing (para 3-34).
(7) Tighten all capscrews securing pan to
Figure 3-172. Pan-to-block alinement check.
block.
(8) Install engine assembly (para 2-9).
3-36. Oil Drain Tube
a. Removal Remove capscrews, lockplates and
lockwashers securing tube (fig. 3-173) and bracket to
block; lift tube and bracket from engine.
b. Installation.
(1) Install oil drain tube and bracket on
bottom of cylinder block on camshaft side of engine;
secure tube and bracket with lockplates and capscrews.
(2) Tighten drain tube flange to cylinder
block first; then tighten bracket capscrew to block. This
eliminates the possibility of the drain tube binding
between bracket and tube flange.
Figure 3-173. Drain tub capscrews removal.
3-37. Oil Pump Replacement
a. Removal.
(1) Remove oil pan (para 3-35).
(2)
Remove capscrews and lockplates
securing oil pump, figure 3-174, and suction tube strap to
block.
(3) Lift pump and tube assembly from block.
b. Installation.
(1) Assemble suction tube to oil pump with
lockplates, capscrews and new gasket; tighten
capscrews finger tight.
(2) Attach hanger straps to suction tube bell;
screw locknuts to within one turn of being tight.
(3) Position oil pump, suction tube and
hanger straps to block, figure 3-175; install mounting
capscrews and lockplates; tighten oil pump capscrews
securely and lock lockplates.
(4) Tighten strap-to-block capscrews finger
tight.
Figure 3-171. Oil pan installation.
(5)
Tighten
suction
tube-to-pump
capscrews; tighten locknuts securing hanger straps to
suction tube bell.
Tighten hanger straps-to-block
capscrews.
3-62
