
59
6. ENGINE FAULT FINDING CHART
The following are suggestions listed for your convenience. You can make simple adjustments on you
tractor that will improve its operation and save your time.
If any trouble is experienced, make sure of the cause before attempting to make any adjustments.
Always make one adjustment at a time, and if the adjustment made does not improve the problem,
return to the original setting before proceeding to the next adjustment.
FAULT
Possible cause
To be rectified by user
To be rectified by your Dealer
Low cranking speed
1,2,3,4
The engine will not start
5,6,7,8,9,10,12,14,15,17
13,34,35,36,37,38,40,42,43,44
Difficult starting
5,7,8,9,10,11,12,14,15,16,17,19
13,34,36,37,38,40,42,43,44
Lack of power
8,9,10,11,12,16,17,18,10,20,21
13,34,36,37,38,39,42,43,44
Misfiring
8,9,10,12,15,2,22
13,34,36,37,38,39,40,41,43
Excessive fuel consumption
11,15,17,18,19,21,22
13,34,36,37,38,39,40,42,43,44
Black exhaust
11, 15,17,19,21,22
13,34,36,37,38,39,40,42,43,44
Blue or white exhaust
4,15,21,23
36,37,38,39,42,44,45,52,58
Low oil pressure
4,24,25,26
46,47,48,50,51,59
The engine knocking
9,15,17,20,22,23
13,36,37,40,42,44,46,52,53,60
ERRATIC RUNNING
7,8,9,10,11,12,15,16,18,20,22,23 13,34,38,40,41,44,52,60,
Vibration
18,20,27,28
13,34,38,39,40,41,44,52,54
High oil pressure
4,25
49
Overheating
11,15,19,27,29,30
13,34,36,37,39,52,55,56,57
Excessive crankcase pressure 31,33
39,42,44,45,52
Poor compression
11,22
37,39,40,42,43,44,45,53,60
The engine starts and stops
10,11,12
KEY TO FAULT FINDING CHART
:
1 - Battery capacity low.
2 - Bad electrical connections.
3 - Faulty starter motor
4 - Incorrect grade of lubricating oil.
5 - Low cranking speed.
6 - Fuel tank empty.
7 - Faulty stop control operation.
8 - Blocked fuel feed pipe.
9 - Faulty fuel lift pump.
10 - Choked fuel filter.
11 - Restriction in air cleaner.
12 - Air in fuel system.
13 - Faulty injectors or incorrect type.
14 - Cold start system used incorrectly.
15 - Faulty cold start system.
16 - Blocked fuel tank vent.
31 -
Choked breather pipe.
32 -
Insufficient coolant in system.
33 -
Vacuum pipe leaks or faulty exhauster.
34 -
Faulty fuel injection pump.
35 -
Broken fuel injection pump drive.
36 -
Incorrect timing of fuel injection pump.
37 -
Incorrect valve timing.
38 -
Poor compression.
39 -
Cylinder head gasket leaking.
40 -
Sticking valves.
41 -
Incorrect high-pressure pipes.
42 -
Worn cylinder bores.
43 -
Pitted valves and seats.
44 -
Broken, worn or sticking piston rings.
45 -
Valve stems and/or guides worn.
46 -
Worn or damaged crankshaft bearings.