Cylinder Head Design; Oil Pump Inspection - Honda C50 Shop Manual

14
3.
Figure 3-13.
Fi g ure 3-1
~ -
::::
::-.x:c
Figure 3- 15. Insta lling the o i l pump uni;
Figure 3- 16. Cylinder head assembly
ENGINE
b. Inspection
( 1 l Oil pump outer roto r to housing· clea rance
(Fig.
3-13)
Standard value
0.1 - 0. 15 !0 .004-0.006
in)
!21
Rotor to rotor clearance
Sta ndard va lue
0.02-0.07 (0.008-0.028
in)
31
Rot or tip clearance (Fig.
3- 14)
Standa rd value
0.1 5
max.
(0.006
in)
Serviceable limit---+replace if over
0.2 (0.008
in)
e- Reassem bly
I) Fit t he inner rotor to t he outer rotor and
·• e install the pump assembly to the right
::•a~
case. Install the oil pump assembly t o t he
-·;;"- crankcase. (Fig.
3-14)
-.-a he clutch assembly a nd the r ight crank-
-~-
.. cover.
3.2 CYLINDER HEAD
CYLINDER HEAD DESIGN
The cylinder head is const ructed of an aluminum
a lloy ca st ing incorporating combustion chamber, inlet
por , e xhaust po rt, and carries the camshaft, va lves,
va lve rocker arms.
The camshaf t is dri ven by t he timing sprocket
through a cha in on the right side of the engine.