SECTION 8
ASSEMBLY
CRANKCASE SEALING
1.
Prepare
the
sealing
surfaces
of
the
crankcase
halves
as
directed
by
the
sealant
manufacturer.
DO
NOT
SCRAPE
the
sealing
surface
when
cleaning,
as
this
will
damage
the
sealing
sur-
face
and
inhibit
sealing.
Peel
off
or
use
lacquer
thinner
or
gasket
remover
to
remove
old
sealant.
#2
Crankcase Half
2.
Apply
a 1116" (1.5mm) DIA.
sealant
bead
to
the
#2
crankcase
half
as
shown
in
Figure
8-13
and
8-14.
Follow
sealant
manufacturer's
instruc-
tions
regarding
"setting."
Recommended
Seal-
ants
are
listed
in
the
table
below.
CAUTION:
A
Keep
crankcase
sealant
out
of
oil
passages
and
holes.
Sealant
left
in
oil
passages
will
prohibit
adequate
lubrication,
resulting
in
engine
failure.
Figure
8-13.
Applying
Crankcase
Sealant-
Crankcase Exterior
VENDOR
Dow Corning
GE
GE
GE
Loctite
Permatex
RECOMMENDED SEALANTS
These commercially available sealants are recommended
for
use
on crankcase assemblies
of
KT17, KT19 and
KT21
engines.
PRODUCT VENDOR NO. & DESCRIPTION
Silicone Rubber Sealant
732
Aluminum, Black, Bronze, Clear,
White
RTV
Silicone Rubber RTV102- White RTV109- Gray
RTV103- Black RTV154 - Gray
RTV106-
Red
RTV156-
Red
RTV1
08
- Clear
Silicone Instant Gasket
Red
Silicone Hi Temp Instant
Red
Gasket
Superflex Silicone Adhesive
593- Black
Sealant 594- White
595- Clear
Silicone Form-A-Gasket 6 Blue 3
oz.
Bubble pack tube
6B
Blue 3
oz.
Boxed tube
6C
Blue
11
oz.
Cartridge
6M
Blue
12
oz.
Tube
66B Clear
3
oz.
Tube
66C Clear
11
oz.
Tube
AVAILABILITY
Automotive, Hardware,
and Discount stores
GE
Siiicone Products
Distributors
Automotive, Hardware,
and Discount stores
Automotive, Hardware,
and Discount stores
Loctite Distributors
Automotive, Hardware,
and Discount stores
All
of
the
above
sealants
have
a
one
to
two
year
storage life.
Using
an
outdated
sealant
can
result
zn
seal
leakage.
58
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