12.2 Diesel Engine
(1) Starting problems
(2) Insufficient output and operation problems
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(A) In case of compression problems
(B) In case of inappropriate fuel injection inside the combustion chamber
(C) Fuel and compression pressure appropriate, but the engine does not start.
Intake/exhaust valve upthrust
Decompressor adjustment problems
Contact with seat not close enough.
Piston ring wear
Cylinder wear
Cylinder, cylinder head mating surface problems
Nozzle seat looseness
Clogging of the tank cap air hole.
Clogging of the fuel filter
Fuel cock not open
Air inside the fuel pipe
Injection pump barrel, plunger stuck
Nozzle hole clogging
Nozzle needle stuck
No compression at all
Almost no compression
Fuel flow low or no flow
Fuel not injected inside
the combustion chamber
No fuel in the fuel tank
Mixing of water or foreign materials
Does not reach
the starting revolution.
Insufficient compression
Engine overheating
with black smoke
㻾㼑㼢㼛㼘㼡㼠㼕㼛㼚㻌㼒㼘㼡㼏㼠㼡㼍㼠㼕㼛㼚
Inappropriate starting operations
Engine oil viscosity high, engine oil is very dirty.
Air trapped inside the fuel pipe.
See the comment for insufficient compression.
Dirt and breakage of cooling fin
Mixing of water inside the fuel filter
Carbon accumulated in the combustion chamber or exhaust hole.
Smoke set inappropriate
Overload
Inappropriate injecting timing
Nozzle clogging
Governor fork and sleeve mating surface problems
Governor spring problems
Fly plate and sliding part wear and operation problems