Yanmar 3TNV88F Service Manual page 168

FUEL SYSTEM
Figure 7-35
5. Install a dial indicator (Figure 7-36, (1)),
Mitutoyo No. 2050SB or equivalent, with a 30
mm extension, YANMAR Part No.
158090-51870 or Mitutoyo No. 303613, into the
adapter. Secure with the YANMAR Part No.
23000-013000 plunger adapter clamp
(Figure 7-35, (1)) at approximately the mid-
point of its travel.
1
Figure 7-36
Note: The following references to the direction-
of-rotation are facing the coolant pump
end of the engine and are adjusted by
turning the crankshaft pulley.
7-22
Checking and Adjusting Fuel Injection Timing
6. Using a wrench on the crankshaft pulley bolt,
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K0002068A
7. Typical flywheel markings are as shown in
K0002069
rotate the crankshaft in a clockwise direction
while looking through the flywheel inspection
port (Figure 7-37, (1)). Rotate the crankshaft
until the injection timing marks on the flywheel
are visible.
Figure 7-37
(Figure 7-38, (1)).
Note: A typical flywheel will have multiple
timing grids depending on the number of
cylinders. Any grid can be used to check
the fuel injection timing.
The flywheel shown in Figure 7-38 is for a
YANMAR "Standard Specification" DI engine.
Flywheels used on some "OEM Specific" DI
engines may be marked differently. You should
contact that specific OEM for information on the
identification of the timing marks.
3TNV88F Service Manual
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K0002070