6) Tighten the front mounting bolt.
(9) Connect all leads and linkages with the engine accessories.
(10) Connect the fuel line with the carburetor (par. 106).
(13) Fill the crankcase with oil. Refer to LO 5-1185.
(14) Install the compression roll housing and connect all electrical leads and linkages (par. 158).
(17) Start the engine and check for proper operation. Operate the road roller and check the clutch levers, gear
176. Valve Guides
a. General. Excessive wear of the valve guides will make it impossible to secure tight valve seats by grinding the
valves. A leaking valve seat will cause loss of power and compression and will result in erratic engine operation. It is
important to clean the valve guides before checking them for wear.
(4) Use a valve guide cleaning tool to ream carbon from the valve guides.
(5) Rotate the valve guide cleaning tool in the guides until the gum, carbon, and other foreign material have
(6) Clean the valve guides with cleaning solvent and blow them dry with clean compressed air.
(1) Clean the valve stem and install the valve in the valve guide.
(2) Attach a dial indicator to a convenient stud on the cylinder block.
(3) Lift up the valve head about one-half inch above the cylinder block.
(4) Adjust the plunger of the dial indicator so that it will touch the edge of the valve heads.
(5) Hold the valve so it will not turn and move it toward and away from the dial indicator plunger. Note the
amount of play shown on the indicator dial.
(6) The clearance between the valve stem and valve guide will be one-half of the amount shown on the