SECTION 7 - ENGINE
7.1
ENGINE TROUBLESHOOTING
The following troubleshooting chart is to be used to
isolate engine problems and give possible causes and
corrective action responses.
The troubleshooting key is generic and can be used for
several types of engines. Use only those possible
causes and corrective actions that apply to the
unit.
TROUBLE
POSSIBLE CAUSES
(Refer to Key Below)
CORRECTIVE ACTION
Black Exhaust
1, 20, 22, 25, 29, 31, 32, 33
4, 20, 25, 31, 33, 34
repair or replace
Blue/White Exhaust
Difficult Starting
repair or replace
1, 5, 7, 8, 10, 20, 21, 22, 29, 31, 32, 33
1, 7, 8, 10, 20, 21, 23, 26, 29, 33, 59, 62
1, 20, 22, 23, 25, 39, 31, 32, 33
4, 41
repair or replace
Erratic Running
repair or replace
Excessive Fuel Consumption
High Oil Pressure
Knocking
repair or replace
repair or replace
22, 26, 29, 31, 33, 36, 46, 59
1, 8, 10, 20, 21, 22, 23, 25, 26, 31, 32, 33
2, 3, 4
repair or replace
Loss of Power or System
Low Cranking Power
Low Oil Pressure
Misfiring
repair or replace
repair or replace
4, 36, 37, 39
repair or replace
10, 20, 25, 26, 28, 29, 32
1, 19, 25,
repair or replace
Overheating
repair or replace
Poor Compression
Starts and Stops
25, 28, 29, 31, 32, 33, 34,59,
1, 6, 10, 62
repair or replace
repair or replace
see electrical systems
see engine service manual
repair or replace
Vibration
20, 23, 25, 26, 29, 33, 49
Will Not Crank
Will Not Start
2, 11
charge battery or replace
repair or replace
1, 10, 62
see electrical systems
see engine service manual
TROUBLESHOOTING KEY
1
Restriction in air cleaner
Bad electrical connection
Faulty starter motor
Incorrect grade of lubricating oil
Low cranking speed
Fuel tank empty
22
23
24
25
26
27
28
Incorrect grade of fuel
Sticking throttle/restricted movement
Exhaust pipe restriction
Leaking cylinder head gasket
Overheating
43
44
45
46
47
48
49
Faulty suction pipe
Choked oil filter
2
3
4
5
6
7
Bad solenoid switch
Incorrect piston height
Damaged fan
Faulty engine mounting
Incorrectly aligned flywheel and/or
flywheel housing
Cold running
Incorrect tappet adjustment
Controls not in correct operation
position
8
9
Blocked fuel feed line
Faulty fuel lift pump
Choked fuel filter
Battery capacity low
Air in fuel system
Faulty fuel injection pump
Faulty fuel injectors or incorrect
type
29
30
31
32
33
34
35
Sticking valves
Incorrect high pressure pipes
Worn cylinder bores
50
51
52
53
54
55
56
Faulty thermostat
Restriction in water jacket
Loose fan belt
10
11
12
13
14
Pitted valves and seats
Choked radiator
Broken, worn or sticking piston ring(s)
Worn valve stems and guides
Restriction in air cleaner
Faulty water pump
Choked breather pipe
Damaged valve stem oil deflector (if
fitted)
15
Incorrect use of cold start
equipment
36
Worn or damaged bearings
57
Coolant level too low
16
17
18
19
Faulty cold start equipment
Broken fuel injection pump drive
Incorrect fuel pump timing
Incorrect valve timing
37
38
39
40
Insufficient oil in sump
Bad/defective oil temperature switch
Oil pump worn
58
59
60
61
Blocked sump strainer
Broken valve spring
Exhaust or vacuum pipe leak
Bad or defective water temperature
switch
Pressure relief valve sticking open
20
21
Poor compression
Blocked fuel tank vent
41
42
Pressure relief valve sticking closed
Broken relief valve spring
62
Bad spark plug(s)
7
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| Categories | Ariens Snow Blower Manuals, Snow Blower Manuals |
|---|---|
| Download File |
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| Document Type | Service Manual |
| Language | English |
| Product Brand | Ariens, Snow Blower |
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| Publisher | ariens.com |
| Wikipedia's Page | Ariens |
| Copyright | Attribution Non-commercial |
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