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Valve Clearance
Servicing Your Honda 73
(4) primary drive gear bolt (6) “∆” mark
(5) punch mark
4. Apply molybdenum oil solution to the
camshaft journals and cam lobes.
Place the camshaft (7) with the intake cam
lobes (8) facing up and align the timing marks
(9) on the cam sprocket (10) with the surface
of the cylinder head (11).
Install the cam chain (12) over the sprocket
without rotating the camshaft.
(7) cam shaft (12) cam chain
(8) intake cam lobes
(4)
(5)
(6)
(12)
(7)
(8)
Camshaft Installation
1. Install the newly selected shims (1) on the
valve retainers (2).
Do not let the shims fall into the crankcase.
NOTICE
(1) shims (2) v alve retainers
2. Apply molybdenum disulfide oil (a mixture of
1/2 engine oil and 1/2 molybdenum disulfide
grease containing more than 3% molybdenum
disulfide additive) to the outer surface of the
each the valve lifters (3).
Install the valve lifters to the proper position.
3. Rotate the primary drive gear bolt (4)
(crankshaft) clockwise and align the punch
mark (5) with the “
∆” mark (6).
(1)
(1)
(2)
(2)
(3)
(13) set rings
(15) camshaft bearing grooves
(13)
(15)
(13)
(9) timing marks
(10) cam sprocket
(11) surface of the cylinder head
5. Apply grease to the set rings (13) and install it
onto the camshaft bearing grooves (15).
(10)
(11)
(9)
(3) valve lifters
(cont’d)
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