International Harvester Company TD-24 Operator's Manual page 32

PREVENTIVE MAINTENANCE
CHECKING MECHANICAL PROBLEMS - Continued
Probable Cause
Probable Remedy
Problem
----------+---------------------------4---------------------------
ENGINE
TURNS BUT
WILL NOT
START
Continued
C--Ignition system faulty
- Cont inued.
(5) No spark from distributor.
D--Carburetor choked too much.
E--Compression release rod in diesel
position.
Fro-Air intake restricted or exhaust
system clogged.
(5) Remove distributor cap from distri-
butor and crank engine to see if dis-
tributor rotor turns.
(a) If distributor rotor does not turn
remove distributor (pa~e 74).
*
(b) If rotor turns but engine does not
start, remove a spark plug cable
from spark plug. Hold cable ter-
minal 1/4 Inch from cylinder head
and crank engine.
If spark
appears,
plugs may be fouled or nee d re-
placement. If no spark appears,
check breaker points in distribu-
tor (pa~e 73).
D--Open the choke. Wait a few minutes
before attempting again to start
engine.
E--Pull compression release rod into
gasoline (starting) position.
F--Service the air cleaner and clean the
exhaust system.
ENGINE
MISSING AND
BACKFIRING
(Gasoline
Cycle)
A--Water in the gasoline.
B--Air leaks around intake manifold.
C--Firing order incorrect.
D--Distributor not correctly timed to
engine.
E--Starting valves not properly seated.
A--Drain gasoline tank, strainer and
carburetor.
B--Tighten manifold stud nuts.
C--Check spark plug cables for incorrect
installation at spark plugs and dis-
tributor cap.
D--Check and adjust timing (pa~e 74).
E--*
ENGINE
WILL NOT
OPERATE
AS A DIESEL
ENGINE
A--Injection pump does not deliver fuel.
(1) Fuel tank empty, or shut-off valve
closed. .
(2) Fuel supply system air-bound.
(3) Fuel filters clogged.
(4) Fuel lines clogged or injection
nozzles inoperative.
B--Compression release mechanisrn
not functioning.
(1) Starting valves warped.
(2) Starting control linkage out of
adjustment.
(3) Butterfly valves in manifold not
functioning.
A--
(1)
(2)
(3)
(4)
B--
(1)
(2)
(3)
Fill fuel tank or open shut-off
valve.
Vent the fuel system (IB pa~e 71'-
Boseh pa~e 90).
Replace filter elements (IB pa~es
66 and
67 -
Bosch pa~e 89).
* ._-
*
Check linkage for broken parts,
missing cotters and pins. Adjust.'
*
Remove manifold end covers, and
operate compression release lever
to see if butterfly valves are func-
tioning.
30
*
Consult Your Inte r nat ional Industrial Power DIstributor or Dealer