7.
Malfunctions – causes and remedies
Kind of trouble
Possibly caused by
Remedy
Chapt.
25
Engine will not
start or is reluctant
to start although it
can be turned over
with the starter.
Speed control lever is in stop or
idle position.
No fuel reaching injection pump.
Compression too low:
- incorrect valve clearances.
- valves worn
- cylinder or piston ring wear
- fault in automatic decom-
pression device
Injectors not working correctly.
Fan drive belt broken.
Move lever to 1/2 START or
max. START position according
to operating conditions.
Lever must remain fixed in this
position.
Add fuel.
Prime the delivery pump until
fuel is heard to flow back
through the return line to the
fuel tank.
Check through the entire fuel
supply system systematically.
If there is no improvement,
check
- feed line to engine
- fuel pre-filter
- fuel filter
- delivery pump function.
Check valve clearances and ad-
just if necessary.
See workshop manual.
See workshop manual.
See workshop manual.
See workshop manual.
Renew the Poly-V belt.
4.2.1.
4.1.2.
5.4.1.
5.5.1.
3.3.
5.4.3.
6.2.
If the engine is difficult to start after having been out of use for
a lengthy period, but the problem can be solved by priming the
delivery pump for some time: check that the fuel system is correctly
laid out.
Summary of Contents for 2 - 4 L 40
Page 1: ...INSTRUCTION BOOK 43340205 ENG 09 02 2 Printed in Germany 33 2 4L40 2 4L41 2 4M40 2 4M41...
Page 16: ...2 M 40 and 2 M 41 without oil pan 2 M 40 2 M 41 with oil pan 3 4 M 40 3 4 M 41 in all cases 15...
Page 32: ...10 11 L3 250 050 145 00 12 1 2 3 4 5 6 13 0 14 L3 1 2 1 3 0 15 3 2 START...
Page 33: ...16 L3 3 1 2 3 17 L3 2 18 19 1 2 L3 63 20 L3 48 1 21 1 L3 78 2...
Page 34: ...22 L3 53 1 23 2 1 L3 28 24 L3 105 25 L3 54 26 L3 79 1 2 27...
Page 35: ...28 1 2 3 4 L3 4 1 6 5 7 29 1 30 L3 60 31 L3 58 3 6 5 4 5 2 1 3 7 32 1 L3 50 33 1 1 L3 62...
Page 37: ...40 L3 68 41 2 1 3 L3 67 42 1 L3 70 43 L3 69 1...
