Segway SNARLER SGW570A6 2021 - Cylinder Head; Cylinder Head Inspection; Cylinder Head Removal; Cylinder Head Warp

ENGINE TOP END
ENGINE TOP END
3-5-21
A
A
E
E
C
C
F
F
B
B
D
D
Cylinder Head
Cylinder Head Removal
Cylinder Head Removal
NOTE
NOTE
The cylinder head can be serviced with the engine
installed in the chassis.
◆
Remove the (2) outer M6 bolts
【
A
】
that retain the
cylinder head
【
B
】
to the cylinder.
◆
Loosen the (4) cylinder head bolts
【
C
】
evenly 1/8
turn at a time until all are loose.
◆
Remove and discard the cylinder head bolts
【
C
】
.
◆
Tap cylinder head lightly with a soft faced hammer
until loose.
◆
Tap only in reinforced areas or on thick parts of the
cylinder head casting.
◆
Remove the cylinder head
【
B
】
and head gasket
【
D
】
.
Cylinder H
Cylinder H
ead Inspection
ead Inspection
◆
Thoroughly clean cylinder head surface to remove
all traces of gasket material and carbon.
CAUTION
CAUTION
Use care not to damage gasket sealing surface. All
gasket surfaces must be clean, dry and free of any
oil or grease upon assembly. Clean sealing surfaces
with rubbing alcohol or electrical contact cleaner. Do
not touch sealing surfaces of the new head gasket.
Cylinder H
Cylinder H
ead Warp
ead Warp
◆
Clean the cylinder head.
◆
Lay a straightedge across the lower surface
of the cylinder head.
◆
Use a thickness gauge to measure the space
between the straightedge
【
F
】
and the head
at several locations.
Cylinder Head Warp Limit :
0.05 mm (0.002")
If the cylinder head is warped more than the service limit,
replace it.