05-112
MMC2005-001_05A.FM
SECTION 05 - ENGINE PREPARATION
ENGINE DIMEN
S
ION
MEA
S
UREMENT
T
his section covers all engine types.
CYLINDER HEAD WARPAGE
ENGINE TYPE
MAXIMUM
0.0
5 mm
(.002 in) per
5
0
mm
(2 in) of surface
All
0.
5 mm
(.020 in) for total
length of cylinder head
Check gasketed surface of the cylinder head with
a straightedge and a feeler gauge.
CYLINDER TAPER
ENGINE TYPE
MAXIMUM
All
0.10
mm
(.004 in)
Co
m
pare cylinder dia
m
eter 16
mm
(
5
/
8
in) fro
m
top of cylinder to just below its intake port area.
If the difference exceeds the specified di
m
ension
the cylinder should be rebored and honed or
should be replaced. Nikasil cylinder can be honed
using dia
m
ond hone but can not be rebored.
NOTE:
Be sure to restore the cha
m
fer around all
cylinder sleeve port openings.
A
A33C1BA
1
1. Below the intake port
A. 16
mm
(
5
/8 in) fro
m
top
CYLINDER OUT OF ROUND
ENGINE TYPE
MAXIMUM
All
0.0
8 mm
(.003 in)
Measuring 16
mm
(
5
/
8
in) fro
m
top of cylinder with
a cylinder gauge, check if the cylinder out of round
is
m
ore than the specified di
m
ension. If larger,
cylinder should be rebored and honed or should
be replaced. Nikasil cylinder can be honed using
dia
m
ond hone but cannot be rebored.
NOTE:
Be sure to restore the cha
m
fer around all
cylinder sleeve port openings.
A33C1CA
2
1
A
1. Piston pin position
2. Measures to be co
m
pared
A. 16
mm
(
5
/8 in)
COMBU
S
TION CHAMBER
VOLUME MEA
S
UREMENT
T
he co
m
bustion cha
m
ber volu
m
e is the region in
the cylinder head above the piston at
T
op Dead
Center. It is
m
easured with the cylinder head in-
stalled on the engine.
Содержание ski-doo MACH Z 1000 SDI
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