Universal M-25XP User Manual

TROUBLESHOOTING
---+
Crankshaft and camshaft have seized up.
Frictional resistance of moving parts
---+
Piston and cylinder liner have seized up.
is too much.
r--
Bearings are oil-stuck.
Lubrication system not working properly.
Starter faulty.
L...., Battery capacity is low or terminal loose.
~--------------------------------~
---+
Fuel pipe broken.
r1
Fuel supply to injection pump
1-
----.
Air el}ters fuel pipe through connection.
is insufficient.
Fuel filter clogged.
--
~
Fuel pump faulty.
~
Plunger has worn or seized up.
Injection pump does not send
Delivery valve spring broken.
on
fuel.
~
Delivery valve not cQmpletely oil-tight_
---+
Needle valve stuck.
~
Fuel does not inject through
~
Nozzle spring broken.
injection
nozzle.
!-----
---+
Injection pressure maladjusted.
Injection pipe mounting nut loose.
r1
1
Injection mistimed.
I
Injection
timing maladjusted.
J
I
Contact between intake/exhaust valve and seat
~
not tight.
~
Intake/exhaust valve spring broken.
r----+
Intake/exhaust valve stuck.
r---.-
Gasket faulty.
I
1
Compressed air leaks.
Tightness torque of cylinder head not enough.
I
I
~
riston ri~;; st!'!ck.
~
Piston ring worn.
---+
Cylinder liner worn.
---+
Tightness torque of injection nozzle and glow
plug
not enough.
--1
1
Valve action timing improper.
.. J
Valve clearance excessive.
I
171

Universal M-25XP Specifications

General

Brand	Universal
Model	M-25XP
Category	Engine
Language	English