Maintenance Manual of 4M11 Series Diesel Engine For Land Power Generators
11
HEC-Ⅱ-40
Note:
1) Make sure to periodically check the coolant and, to prevent the corrosion and damage,
timely replace depending on actual situation.
2) It’s prohibited to use water or low quality coolant as the engine coolant.
2.1.4 Auxiliary Materials
Table 2-5 Auxiliary Materials
SN. Name Color Purpose and location
1 MolykotePulver Black
Applied on flat and smooth metal surfaces to prevent seize
For example, applied onto outer surfaces of cylinder liners
2 Molykote G-N plus Dark grey
Lubrication before the lubricating oil pressure builds up.
For example, applied onto the intake valve stem
Table 2-6 Reference Table for Sealant Application of Diesel Engine
Mark Main use
List of locations for application of
sealant
Supplement
Loctite 242
It’s applied onto the
threads to prevent being
vibrated to looseness, with
moderate strength.
Flywheel cover bolt
Camshaft thrust halfring bolt
Camshaft timing gear bolt
Intermediate idler bolt
Front end cover bolt
Engine oil filter base bolt
Oil cooler bolt
Screw plug, control valve, engine
oil cooler,
Bolt, fuel return pipe fixing device,
fuel pump,
Air compressor shaft end thread
Suction filter bolt
Bolts of sensor and harness fixing
device
Alternatively, the thread
pre-application sealant
DriLoc204 can be
pre-applied.
Loctite 262
Applied onto outer threads
for locking, sealing,
preventing vibration from
causing looseness
Auxiliary bolt, cylinder head
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