Cub Cadet 8454 Service Manual page 86

CHAPTER 2 8454
G. FUEL SYSTEM
a . Checking and Adjusting
1) Injection pump
(A) Injection term (Injection timing)
1. Remove the injection pipes.
2. Set the speed control lever to the maximum fuel
discharge position.
3. Turn the flywheel counterclockwise (facing the
flywheel) until the fuel flows through the hole of the
delivery valve holder (1).
4. Turn the flywheel further and stop turning when the
fuel stops to flow, to check the injection timing.
5. If the Fl mark does not align with the mark of the
window on flywheel housing, add or remove the
shim (2) to adjust.
Injection
4A220
timing
4A200T
NOTE:
• Apply liquid gasket (There Bond 1215 or equivalent)
to the shim, when reassembling.
(Reference)
• The timing advances by removing 0.15 mm (0.006
in.) of shim and retards by adding one, approx 0.26
rad (1.5°) of crank angle.
• Approx 3.6 mm (0.142 in.) of turn at outer rim of
flywheel equals 0.26 rad (1.5°) of crank angle.
2-64
K&T Saw Shop 606-678-9623 or 606-561-4983
www.mymowerparts.com
(1) Delivery Valve Holder
0.31 rad, 18°
before T.D.C
0.21 rad, 12°
before T.D.C
569W2C6A
(2) Shim
D569-W02 May-2003