G643(E) Service Manual Chapter 5. Engine Management System (EMS) 144
Q’ty
Components
G643E G643
Items Specifications
CA100 Mixer
For G643
None 1
Fuel
Fuel Inlet Fitting
Air Intake Flange
Mixer Mounting Flange
Reference Pressure
Ports
Air Valve Vacuum (AVV)
Port Size
Fuel Inlet Adjustments
Idle Air Adjustment
Mounting
LPG
1/2” NPT
Fuel inlet fitted with Delphi
temperature sensor
2.25” (57.15mm) ID inlet, four #10-
24 screws in 1.94” (49.28mm)
square pattern
1.87” (47.49mm ID outlet, four #12-
24 screws arranged in a rectangular
pattern
1/4-1/8 NPT ports. Pressure
readings must be identical within
0.25 inH
2
O (0.623 mbar) at all
airflows.
1/4-28 UNF
Power valve
Idle adjustment screw
Suitable for on-engine mounting in
vertical orientation
Fuel Trim Valve (FTV)
2 None
Actuator Type
Operating Voltage
On/off two-position valve compatible
with LPG 8-16 Vdc
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