MTU 16 V 2000 M94 - Checking Valve Clearance at Two Crankshaft Positions

Checking valve clearance at two crankshaft positions
1. Check TDC position of piston in cylinder A1:
• If the rocker arms are unloaded on cylinder A1, the piston is in firing TDC.
• If the rocker arms are loaded on cylinder A1, the piston is in overlap TDC.
2. Check valve clearance with cold engine:
• Inlet (E) = 0.3 mm;
• Exhaust (A) = 0.4 mm.
3. Check all valve clearances at two crankshaft positions (firing TDC and overlap TDC) according to the
table below.
8V2000
Position Cylinder 1 2 3 4 5 6 7 8 9
Firing TDC in cylinder A1 Bank A E A - A E - - A
Bank B E - E - - - - A
Overlap TDC in cylinder A1 Bank A - - E - - A E -
Bank B - A - A E A E -
“E” = inlet valve clearance adjustment permitted, “A” = exhaust valve clearance adjustment permitted
10V2000
Position Cylinder 1 2 3 4 5 6 7 8 9
Firing TDC in cylinder A1 Bank A E A - - - - - A E -
Bank B E - - - - A E A E -
Overlap TDC in cylinder A1 Bank A - - E A E A E - - A
Bank B - A E A E - - - - A
“E” = inlet valve clearance adjustment permitted, “A” = exhaust valve clearance adjustment permitted
12V2000
Position Cylinder 1 2 3 4 5 6 7 8 9
Firing TDC in cylinder A1 Bank A E A E - - A E - - A - -
Bank B E - - - - A E - E
A
- A
Overlap TDC in cylinder A1 Bank A - - - A E - - A E - E A
Bank B - A E A E - - A - - E -
“E” = inlet valve clearance adjustment permitted, “A” = exhaust valve clearance adjustment permitted
16V2000
Position Cylinder 1 2 3 4 5 6 7 8 9
Firing TDC in cylinder A1 Bank A E A - A - A E - - A E - - - - -
Bank B E - - A - - E - E
A
E - E
A
- A
Overlap TDC in cylinder A1 Bank A - - E - E - - A E - - A E
A
E A
Bank B - A E - E A - A - - - A - - E -
“E” = inlet valve clearance adjustment permitted, “A” = exhaust valve clearance adjustment permitted
18V2000
Position Cylinder 1 2 3 4 5 6 7 8 9
MS150061/04E 2012-07 | Task Description | 85
TIM-ID: 0000004363 - 004