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TROUBLESHOOTING
Camshaft Timing, Check
1. Remove the cylinder head (valve) cover.
2. Check the camshaft vibration damper for
damage to the pulse wheel pins.
3. Check the pulse wheel mounting for secure,
square attachment.
4. Turn the engine crankshaft so that the TDC
mark on the camshaft corresponds to the
marks on the camshaft bearing cap No. 7
(MP7) or camshaft bearing cap No.1 (MP8
and MP10) and the flywheel TDC mark “0” is
opposite the pointer on the flywheel housing.
5. To ensure that the camshaft is correctly
installed, complete a valve lift check on the
intake valves of cylinder No. 1.
앫 Temporarily adjust the No. 1 inlet rocker
arm, at the valve yoke, to zero lash.
앫 Position a dial indicator at the inlet
valve yoke for the No. 1 cylinder.
앫 Preload the dial indicator and reset the
dial to align with zero.
앫 Turn the engine in the normal direction
of engine rotation one full rotation to “0”
and past to the mark 6 degrees (after
TDC) on the flywheel.
앫 The dial indicator travel reading should
be approximately 1.6 ±0.03 mm
(0.06 ±0.01 inch) for MP7 and MP8 or
1.4 ±0.03 mm (0.05 ±0.01 inch) for
MP10. This reading indicates a
correctly timed camshaft.
앫 Readjust the cylinder No. 1 inlet valves
and yoke.
If the camshaft is one tooth out of time, the dial
indicator reading will be approximately 0.762 mm
(0.030 inch) out of specification and should
experience a fault code for the camshaft sensor.
6. Install the cylinder head (valve) cover.
Crankcase Ventilation, Check
1. Check the inlet pipe to the CCV separator for
oil film, oil residue and particles. Remove
any accumulated oil and dirt particles from
the pipe.
50
Figure 50 — CCV Inlet Pipe Connection
2. Remove the CCV separator from the engine.
3. With the separator removed, rotate the
turbine by hand. It should rotate easily. If it
does not rotate easily, replace the separator
unit.
51
Figure 51 — CCV Separator Turbine Wheel
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