Installation Of Fuel Injection Pump - Yanmar 3TNV82A Service Manual

Fuel Injection Pump
CAUTION
• NEVER remove or attempt to remove
the tamper-proof devices from the
full-load fuel adjusting screw or the
high-speed throttle limit screw on the
fuel injection pump and governor
assembly. These adjustments have
been made at the factory to meet all
applicable emissions regulations and
then sealed.
• NEVER attempt to make any
adjustments to these sealed
adjustment screws. If adjustments are
required, they can be made only by a
qualified fuel injection shop that will
ensure the injection pump continues
to meet all applicable emissions
regulations and then replace the
tamper-proof seals.
• Tampering with or removing these
devices may void the "Yanmar Limited
Warranty."

Installation of Fuel Injection Pump

IMPORTANT
If installing a new or recalibrated fuel
injection pump, locate and record the timing
index number located on the pump housing
boss on the engine side of the new or
recalibrated fuel injection pump
(Figure 7-18, (1)). This number will be used
to calculate and adjust the final fuel injection
timing.
Note: If either or both of the fuel injection
pumps do not have a timing index
number, note the injection pump ID
(example: XK42) on the injection pump
ID label.
To locate the timing index number for the engine
being serviced use the Timing Index Chart under
"FIE Specs" on the Yanmar Distributor Website
(http://distributor.yanmar.co.jp).
TNV DI Service Manual
If additional assistance is needed in locating the
engine timing index number See To Locate an
Authorized Yanmar Industrial Engine Dealer or
Distributor: on page 2-4 and follow the instructions
to locate an authorized Yanmar industrial engine
dealer or distributor for assistance.
Note: Treat the timing index number as if it has
a decimal point (68 = 6.8).
1. Align the pump drive gear with the idler gear
using the reference marks made earlier.
TNV82 - 88 model engines (Figure 7-19, (1)).
TNV94 - 106 model engines (Figure 7-20, (1)).
0000146en
FUEL SYSTEM
(1)
Figure 7-18
Figure 7-19
(1)
0000575 0000575B
7-21