Fuel Injection System- Toro-Flow Engine - GMC 4000 Series Service Manual

Sec. 6M
Page 352
FUEL INJECTION SYSTEM— TORO-FLOW ENGINE
FUEL IN J E C T IO N
N O Z Z L E H OLDER
A S SE M B L Y
G O V E R N O R
FUEL SUPPLY
PUMP
P RIM A RY
FILTER
1 N ozzle Valve and Body
2 N ozzle Valve Spring
3 L eak-off Lines
4 Hydraulic Head A ssem bly
5 Fuel M etering Sleeve
6 Pump Plunger
G M C S E R V I C E M A N U A L
E X C E SS FUEL
ST A R T IN G DEVICE
SLEEVE v
m i H IG H P R E SSU R E (IN J E C T IO N ) FU EL
| | L O W P R E SSU R E (SU PPLY) FUEL
L U B R IC A T IN G O IL
7 Face Gear
8 Tappet and R oller
9 Cam
10 Governor G ears
11 Governor W eights
Figure 1 — Schematic A rrangem ent of Fuel System Units (Typical)
\
DELIVERY
V A LV E
O V ERFLO W ,
FUEL T A N K
12 Governor Stop Plate
13 Fulcrum L ever
14 Stop Lever
15 Shut-off (when used)
16 Fuel Return Line
V A LV E
T-4514