Valve Gear
6 – 11
1
Cylinder A1 is in firing TDC
2
Cylinder A1 is in overlap TDC
I
Inlet valve
X
Exhaust valve
Adjusting valve clearance in two crankshaft
positions
1. Check TDC position of piston in cylinder A1:
• If the rocker arms are not under load on
cylinder A, the piston is in firing TDC.
• If the rocker arms are under load on cylinder A,
the piston is in overlap TDC.
2. Check valve clearance with cold engine:
• Inlet = 0.4 mm;
• Exhaust = 0.6 mm;
3. Check all valve clearances in two crankshaft
positions (firing and overlap TDC for cylinder
A1) as per diagram.
4. Use feeler gauge to determine the distance
between valve bridge and rocker arm.
5. If the deviation from the reference value exceeds
0.1 mm, adjust valve clearance.
Valve clearance adjustment
1. Loosen locknut (1) and unscrew adjusting screw
(2) by a few threads.
2. Insert feeler gauge between valve bridge and
rocker arm.
3. Readjust adjusting screw (2) so that the feeler
gauge just passes through the gap.
4. Tighten locknut (1) to 50 Nm, holding adjusting
screw (2) firmly.
5. Check if the feeler gauge just passes through
between valve bridge and rocker arm.
Result: If not, adjust valve clearance.
M015560
/
00E 03-05 © MTU
Содержание 12V 2000 G23
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Страница 120: ...4 14 Maintenance Schedule Application Group 3A M015560 00E 03 05 MTU...
Страница 121: ...Table of Contents 5 I 5 Troubleshooting 5 1 Troubleshooting 5 01 5 2 ECU alarms 5 04 M015560 00E 03 05 MTU...
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Страница 199: ...Ventilator Drive 6 59 Final steps 1 Install guard cover 2 Fit screws and tighten M015560 00E 03 05 MTU...
Страница 206: ...6 66 Engine Governor Electronic Control System M015560 00E 03 05 MTU...
Страница 207: ...Table of Contents 7 I 7 Annex 7 1 Abbreviations 7 01 7 2 Index 7 03 M015560 00E 03 05 MTU...
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