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PART 10-9.
SPECIFICATIONS
10-75
MOTORCRAFT Model 4300 4-V Carburettor
Carburetor Number (9510)
888~
=
~~
(Manual)
'
1
DOOF - AC (Auto)
CARBURETOR SIZE
Throttle Bore Diameter - Primary
1.560
1.560
-Secondary
1.690
1.690
Venturi Diameter - Primary
1.250
1.250
Air Flow (cfm)
600
600
FUEL INLET SYSTEM
Float Setting ± 1/32
79-.85
.
79-.85
Supplemental (Aux
i
liary) Valve
Setting ± 1 /64
1/16
1/16
FUEL BOWL VENTS
Internal (2)
7/32
7/32
IDLE SYSTEM
Idle Jet
0.026
0.026
Idle Bleed
-
1st
0.046
0.055
-2nd
None
None
-3rd
None
None
Idle Channel Restriction
None
None
Idle Discharge Port
0.082
0.082
Idle Transfer Slot
0.028
0.028
MAIN FUEL SYSTEM
Main Metering Jet- Primary
61F
62F
-Secondary
0.128
0.128
High Speed Bleed - Primary
0.031
0.035
-Secondary
0.024
0.024
Anti Syphon Bleed - Primary
-
Secondary
0.022
0.022
Power Valve Jet
0.059
0.059
Power Valve Timing-
ln.
Hg.
7.5-8.5
6-7
Air Valve Spring Color
Yellow
Yellow
Soark Port
0.065
0.065
PUMP SYSTEM
Lever Position (Hole Number)
2
2
Capacity/1 0 Strokes
-
cc ± 2cc
15
18-8
Pump Jet
0.028
0 .028
Pump Stem Height± 0.020
0.425
0.425
Pump Spring Color
Plain
Plain
CHOKE SYSTEM
Bi-metal and Cap Identification
4TY
4TX
Cap Setting
Index
Index
Pulldown Setting
.180
.200
Fast Idle Cam Setting
.160
.180
Piston and Link Identification
No .2
No.2
Dechoke (Minimum)
0.300
0.300
Choke Air Restriction
0.078
0.078
Cam Identification
K
K
DASH POT
Adjustment (If Equipped)
0.080
0.080
IDLE SPEED
650 675
550 575
.
Idle rpm*
600
550
Fast Idle rprn
1250
1400
•
Headlights on High beam- Air Conditioning on
(if
equipped)
NOTE: Original idle limiter cap colour white- Service replacement cap colour blue.
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