Model Bbd Carburetor Specifications; Model Bbd Carburetor Calibrations - Jeep 1987 Wrangler Workshop Manual

mi
ENGINES
Hi
mi
FUEL SYSTEM - BBD CARBURETOR
Hi
lode! 1BD Carburetor Specification
SEE
I.S.
N
O
T
E
S
List
Number
258 (2V)
Application
Float
Level
Vacuum
Piston Gap
Initial Choke
Valve
Cl@arane®
Fast Idle
Cam Setting
Automatic
Choke Cover
Setting
(NoterMS
Rich)
Accelerator
Pump
Dimension
Choke
Unloader
Fast Idle
SpMd
(RPM)
Bowl
Vent
Starts
To
0p#n
Choke
Si-
mmmi
ID
Choke
8 3 8 3
MocM Trans.
sm
To
OK
Range To
OK
Range
Set
To
OK
Range
St*
To
OK
Range
S#t
To
OK
Range
Set
To
OK
Range
(Min.)
S«t
To
OK
Rang®
2nd
Step
E T
TR
8 3 8 3
81
Auto
6 35
mm
(0
25
mj
5 56-
7 14
mm
(0
218-
0
282
i n )
0 9
mm
(0 0 3 5
m)
0 5-1
3
mm
(0 020-
0 0 5 0
in)
3 5
mm
(0
140
in)
3 18-
3 97
mm
(0 125-
0 155
m)
2 4
mm
(0 095
m)
2 0 - 2 8
mm
( 0 0 8 0 -
0
110
m)
1
1 2
1V&
13 1
mm
(0.520
in)
12
7-
136
mm
(0
500-
0
5 4 0
in)
7 1
mm
( 0 2 8 0
in)
1850
1950-
1750
2nd
Step
E T
TR
8384
81
M a n
6
5
mm
(0 25
m)
5 56-
7 14
mm
(0 218-
0 282
in)
0 9
mm
(0 0 3 5
in)
0
5-1
3
mm
(0
020-
0 0 5 0
in)
3 5
mm
(0
140
in)
3 18-
3 9 7
mm
(0 125-
0 155
in)
2 4
mm
(0 095
m)
2 0-2 8
mm
(0 080-
0 110
in)
1
1 2-
1'*
13 1
mm
(0 520
in)
12
7-
136
mm
(0 500-
0.540
m)
7 1
mm
( 0 2 8 0
m)
1700
1800-
1600
2nd
Step
ET TR
840234A
Model BBD Carburetor Calibrations
List Number
8383
8384
Throttle Bore Size
36.5mm (1.44 in) 36.5mm (1.44 in)
Main Venturi Valve
27mm (1.0625 in)
27mm (1.0625 in)
Fuel Inlet Diameter
2.6mm (0.101 in) 26mm (0.101 in)
Low Speed Jet (Tube)
0.75mm (0.0295 in) 0.75mm (0.0295 in)
Economizer
1.5mm (0.059 in)
1.5mm (0.059 in)
Idle Air Bleed
1.7mm (0.067 in)
1.7mm (0.067 in)
Mainjet Size
2 35mm (0.092 in) 2.35mm (0.092 in)
Accelerator Pump Jet
0 85mm (0,033 in) 0.85mm (0.033 in)
Main Metering Jet Number
120-392 120-392
Metering Rod Number
75-2384
75-2384
840235
B-218