DISASSEMBLY
I
ASSEMBLY
Selecting Cylinder Head Gasket
• Replacing
the
Cylinder
head Gasket
1.
Make sure to note the notch (a), (b) or (c) of cylinder head
gasket.
2.
Replace the same notch (a), (b) or (c)
as
the original cylinder
head gasket.
•
Selecting
the
Cylinder
Head Gasket
• Select the cylinder head gasket thickness
to
meet with the
top
clearance when replacing the piston, piston pin bush,
connecting rod or crankpin bearing.
1. Measure the piston head's protrusion or recessing from the
crankcase
cylinder face 4 spots
per
each piston (average
of
four pistons) using the dial
!Jauge
as shown.
2.
Select the suitable cylinder head gasket refer
to
the table
below.
Piston
Head's
protrusion
or
Notch
01
Thickness of cylinder
recessing from
the
level
of
Cylinder
head gasket crankcase cylinder
face.
Head
(average of 4 pistons)
Gasket
Before
After
tightening tightening
V3300·E2B
V3300·T·E2B
·0.07
to ·0.27
to
2 notches
0.90mm
0.80mm
+0.049
mm
·0.151mm
(a) 0.0354 in. 0.0315 in. ·0.0028 to
·0.0110 to
+0.0019 in.
·0.0059 in.
+0.050
to
·0.15 to
1 notch
1.00mm
0.90mm
+0.149
mm
·0.051 mm
(b) 0.0394 in. 0.0354 in. +0.0020 to
·0.0059 to
+0.0058 in. ·0.0020 in.
+0.150 to
wnhout
1.05mm
0.95 mm +0.20
mm
-0.0510
Dmm
notch
(c)
0.0413 in.
0.0374 in. +0.0059 to
·0.0019 to
+0.0078 in.
a
in.
~
1.
Remove the valve cap
(1)
and the valve spring collets (2)
compressing the
valve spring
(4)
with the valve spring retaine;
(3).
(When
reassembling)
• Install the intake valve spring with
its
small-pitch end
downward (at the head side).
• Wash the valve stem and valve guide hole, and apply engine
oil sufficiently.
• After installing the valve spring collets, lightly tap the stem to
assure proper fit with a
plastic hammer.
Engines & Generators
16
(a) 2 Notches
(b) 1
Notch
(c)
Without
Notch
Flywheel
Side
MEASURING
PISTON
PROTRUSION
RECESS
SPOTS
II
, .
.
I-
@(~
@@
(2)
(1)...-"~(3)
~(7)~(4)
,
f-::~
~ ~
(1)
Valve Cap
J1 J1
.
(2)
Valve Spring Collet
...__-:::O..,;,-"'l!Th,...
(3)
Valve Spring Retainer
(4)
Valve Spring
(5)
Valve Stem Seal
(6)
Valve
(7) Arm Bridge
LARGE
PITCH
SMALL
PITCH
t
INSTALL
WITH
SMALL
(10)
PITCH
END
DOWN
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