Auxiliary Systems - Ford LRG-423 Service Manual

03-I
Auxiliary Systems
03-I
SECTION TITLE PAGE
ENGINE SERVICE ................................................................
01-l
ENGINE SERVICE, 2.3L ....................................................... 02-l
SECTION TITLE PAGE
AUXILIARY SYSTEMS .........................................................
03-l
Section 03 - Auxiliary Systems
SUBJECT
PAGE SUBJECT PAGE
DISTRIBUTORLESS IGNITION SYSTEM
DESCRIPTION AND OPERATION
Warning ............................................................................... 3
Description ......................................................................... 3
Operation
............................................................................ 3
Inputs Affecting Ignition .................................................... 4
Engine Speed and Crankshaft Position
.................... .4
Engine Load ..................................................................
4
Engine Temperature .....................................................
4
Fuel Octane Level Adjustment
.................................... 4
UESC Module Outputs
................................................. 4
Sensor Fail-safe ............................................................ 4
Cranking Mode ..............................................................
4
Run Mode ......................................................................
4
Transient
Mode .............................................................
5
Overspeed
Mode ........................................................... 5
Service Adjustments
And Checks .................................... 5
DISTRIBUTORLESS IGNITION SYSTEM
DIAGNOSING AND TESTING
Diagnosis Equipment ........................................................
6
Diagnosing ......................................................................... 6
DISTRIBUTORLESS IGNITION SYSTEM REMOVAL
AND INSTALLATION
Ignition Coil ......................................................................
10
Removal .......................................................................
10
Installation ................................................................... 10
Engine Speed (Crankshaft
Position) Sensor ................. 10
Removal ....................................................................... 10
Installation ...................................................................
10
Engine Coolant Temperature Sensor
............................. 11
Removal .......................................................................
11
Installation
...................................................................
11
Ignition System
................................................................
12
Crankshaft Position Sensor
...................................... 12
Removal ...................................................................
12
Installation ...............................................................
13
Ignition Coil Pack .......................................................
14
Removal ................................................................... 14
Installation ...............................................................
15
Ignition Wires ..............................................................
15
Removal ...................................................................
15
Installation ...............................................................
15
Spark Plugs .................................................................
15
Removal and Installation ....................................... 15
DISTRIBUTORLESS IGNITION SYSTEM CLEANING
AND INSPECTION
Spark Plugs .............................................................
16
Ignition Coil .............................................................
16
Ignition Wires ..........................................................
16
DISTRIBUTORLESS IGNITION SYSTEM ADJUSTMENTS
AND SPECIFICATIONS
Ignition Adjustments ..................................................
17
Spark Plugs ............................................................. 17
Ignition Timing ........................................................ 17
Ignition Specifications
............................................... 17
Ignition Special Service Tools/Equipment ............... 17
FUEL SYSTEM DESCRIPTION AND OPERATION
Carburetor Identification ........................................... 18
Electric Fuel Pump ..........................................................
18
FUEL SYSTEM DIAGNOSING AND TESTING
Electrical ........................................................................... 19
Fuel Supply and Pressure ............................................... 19
FUEL PUMP SERVICE AND MAINTENANCE ....................... 20
FUEL PUMP SPECIFICATIONS .............................................. 21
CARBURETOR DIAGNOSIS
General Information ......................................................... 22
Percolation ....................................................................... 22
Flooding ............................................................................
22
Hard Starting ....................................................................
22
Stalling .............................................................................. 22
Rough Idle ........................................................................ 22
Surging Above Idle .......................................................... 22
Poor Acceleration ............................................................ 22
Leaking Carburetor .......................................................... 23
Inconsistent Idle Speed ...................................................
23
Reduced Power Output ...................................................
23
ZENITH MODEL #33 CARBURETOR OPERATION
AND SERVICE
Fuel Supply System ...................................................
24
Idle System .................................................................
24
High Speed System .................................................... 26
Accelerating Pump System ....................................... 28
Disassembly
..................................................................... 32
Cleaning and Inspection .................................................
32
Assembly Of Air Intake .................................................... 32
Assembly Of Fuel Bowl ................................................... 32
HOLLEY ONE-BARREL CARBURETOR MODEL 1940
Carburetor Description .................................................... 34
Carburetor Systems ......................................................... 34
Fuel Inlet System ........................................................ 34
Idle Fuel System
......................................................... 34
Main Metering System ............................................... 35
Power Fuel System ....................................................
35
Accelerator Pump System .........................................
35
Adjustments ..................................................................... 36
Float Adjustment ........................................................ 36
Pump Piston Stroke Adjustment .............................. 36
Idle Speed Adjustment ............................................... 36
Idle Mixture Adjustment ............................................. 37
Fast Idle Adjustment .................................................. 37
Carburetor ........................................................................
37
Removal ...................................................................... 37
Installation .................................................................. 37
Disassembly and Assembly ............................................ 37
Disassembly ............................................................... 37
Carburetor Body Disassembly .................................. 39
Cleaning ...................................................................... 39
Assembly .................................................................... 39
Adjustments During Assembly ................................. 40