TM 9-1803A
18
ORDNANCE MAINTENANCE - ENGINE AND ENGINE ACCESSORIES FOR l/4-TON
4x4 TRUCR (WILLYS-OVERLAND MODEL MB AND FORD MODEL GPW)
RA PD 28690
Figure 32 - Installing Valve Spring Retainer Locks, Using
Lifter (41-L-1410) and Replacer (41-R-2398)
in their respective valve guides.
Compress the valve springs on all
valves that are in closed position using valve lifter (41-L-1410), and
install the lower valve spring retainer locks (fig. 32), using replacer
(41-R-2398). Turn the camshaft to close the other valves, and install
the lower valve spring retainer locks on.the rest of the valves.
b. Adjust Valve Tappets. Turn the camshaft until No. 1 valve is
in a closed position, and the tappet is on the heel of the cam. Hold
the valve tappet with one wrench, and turn the valve tappet adjusting
screw with another wrench (fig. 33) clockwise or counterclockwise
until O.OlCinch clearance is established between the valve and the
valve tappet adjusting screw. Repeat the same procedure on each
valve.
c. Install Crankshaft. If a new crankshaft or flywheel is being
used, refer to paragraph 16 e. Install the three upper halves of the
main bearing inserts in the cylinder block (fig. 13). Press the rear
main bearing crankshaft packing into the recess provided at the rear
main bearing (fig. 13), and in the rear main bearing cap. Cut the
ends O& C,.G ~A~..RU..U.. r,O._.....~
4 +ke n-n-tehof+ WB,-G~~ fllush. with. the crankcase an-d with th_e
bearing cap. Install the four bolts and the two tapered studs in the
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