Checking And Adjusting Fuel Injection Timing; Determining Fuel Injection Timing Specification - Yanmar 4TNV98 Service Manual

Figure 7-31
13. Reinstall the coolant pump V-pulley (Figure 7-
32, (4)), spacer (Figure 7-32, (3)) (if equipped)
and engine coolant fan (Figure 7-32, (2)).
Figure 7-32
14. Reinstall the cooling fan V-belt (Figure7-32, (1)).
Adjust it as described in Check and Adjust
Cooling Fan V-Belt on page 47.
15. Reinstall the cooling fan guard (if equipped).
16. Prime the fuel system. See Priming the Fuel
System on page 15.
17. Operate the engine and check for fuel and
coolant leaks.
4TNV98 & 4TNE98 Diesel Engine
Checking and Adjusting Fuel
Injection Timing
Determining the Fuel Injection Timing
Specification
1. Locate and record the fuel injection pump timing
index number (Figure 7-34, (1)) stamped into the
boss on the engine side of the fuel injection
pump housing (Figure 7-33, (1)). Treat this
number as though there is a decimal point
between the two digits. i.e. 68 = 6.8
157
Figure7-33
Figure7-34
Section 4. Fuel System