Cam Chain Tensioner; Valve Operating Mechanism Reassembly; Removing The Valve Rocker Arm; Removing Valve Cotter - Honda C50 Shop Manual

26
Figure 3- 58.
Re - :::. ·-;
·-~
Valve
Figu re 3-59. Removi ng valve cotter
3.
ENGINE
r o cker a rm
e od
1 31 Check for pro p er t appet clearance !both i nlet
and exhaust shou ld be 0 .05mm (0 .002 inl , too
sma ll a clearance w ill cause t he valves to rema i n
partly o p en, ca using co mpression leak a nd result
in hard sta rt ing .
1 41 Ch eck for pro per va lve timing.
(51 Check to see that the cam chai n is not str et ched .
c . Reasse mbly
Assemble in . the same pro ce dur e as t he dis-
assembly w ith the use o f the valve lif ter.
9. CAl!\ CHAIN TEN SIONER
n
o·l damper type of a ca m c hai n damper is
employed -o suppress he vi bratio n of the cam <;:hain,
thereby, rna ing i possible to cont rol the ca m ch.ain
for hi gh speed opera tion and also pr event ing chai n
noise .
Befor e the engine s arts, the chain tensioner spring
co mpartment is flo o ded w ith the oil w hich e nt er s from
the o il damper stra iner.
After t he engine sta rts, t he air remai ning above
the starting o il level in the te nsioner spr ing compa rt-
ment, passes fr om t he ho le A i n t he guide to hole
B due to t he reci pr o cat ing motio n of the te nsioner
spr ing guide and enter s t he cra nkcase. W hen the
e ngine starts t he oil level rises a bove the oi l hole B.
Fi gure 3- 60. Cam chain t ensia ner detail diagram