42
LIST OF SEALANTS AND THREAD LOCKING COMPOUNDS USED FOR
ENGINE MAINTENANCE
SR.
NO
DESCRIPTION COLOR USAGE AND APPLICATION
1
Molykotte
Pulver
Black
Apply it to smooth metal surface to prevent
seizing For example: apply it on the outer
surface of cylinder sleeve.
2
Molykotte G.u.
plus
Dark
Grey
Take the lubricating function before the
lubricating oil pressure is established, For
example: apply on inlet valve rod.
3 Loctite242 Blue
Apply it on the thread surface for xing,
avoid the looseness caused by shake, with
medium strength, For example, apply on the
thread of main oil passage pressure limiting
valve.
4 Loctite262 Red
Apply it on the thread outer surface for
locking, sealing and prevention of looseness
due to vibration, in high strength. For
example: Cylinder head bolt threaded part
5 Loctite275 Green
Apply on the surfaces on pipe and junction
for xing; For example: apply on the surface
of water outlet pipe and heating water inlet
pipe.
6 Loctite510
Red
(orange)
Apply it on the bright metal surface to play
a sealing role For example: apply it to the
faying surface between cylinder block and
crankcase
7 Loctite277 Red
Apply on cavity or passage for sealing
between element and hole. For example:
Bowl shaped plug matching cylindrical
surface
8 Loctite648 Green
Apply it on the bright metal surface to play
xing role For example: Tension pulley
bearing bore and shaft outer surface.
Table 5.4