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MODEL 1MEF CARBURETOR
6C1-17
2.
Throttle body assembly (300).
3.
Float b ow l to throttle body screw assemblies
(305).
^
Tighten
•
Screw assemblies to 20N • m (15 lb.ft.).
Idle M ix tu re Needle
•
Support carburetor.
-►4- Install o r Connect
(Figure 25)
Tool required:
J 29030-B or BT-7610B, Idle M ixtu re Socket
(Adjusting Tool).
Idle m ixture needle (326) and spring (327).
•
Turn needle in to lig htly bottom, then back
o u t n u m b e r o f t u r n s c o u n t e d d u r i n g
disassembly.
•
Final idle mixture adjustment is m a de on
th e v e h ic le .
For i n f o r m a t i o n o n t h is
adjustm ent procedure, refer to Carburetors
(SEC. 6C1) in th e 1989 Ligh t Duty Truck
Service Manual.
FLOAT BOWL COMPONENTS
If replacing the float bow l assembly, transfer the
id e n tific a tio n n u m b e r to t h e n e w f l o a t b o w l at
location shown, (Figure 1). Follow the instructions on
the envelope included in the service package.
Pump Discharge Ball and Spring
Install o r Connect
+ 4-
(Figure 24)
1.
Pump discharge ball (260).
2.
Pump discharge ball spring (258).
3.
Pump discharge spring gu id e (256).
•
Install flush w ith casting surface.
Idle Tube A ssem bly
|+4-| Install o r Connect
(Figure 24)
•
Idle tube assembly (286).
•
Should be flush w ith casting surface.
Main M e te rin g Jet and Float Needle Seat
Install o r Connect
(Figures 34, 23)
1.
M ain m etering jet (282).
2.
Float needle seat (234) w ith new gasket (235).
279
279. Metering Rod and
Spring A s s e m b ly
282. Main Metering Jet
276. Power Piston Spring
274. Power Valve Piston
A s s e m b ly
2 8 2
F-01491
Figure 34 - Pow er Piston, M e te rin g Rod and Jet
POWER PISTON AND PUMP
Install or Connect
(Figures 3 4 ,2 0 ,3 5 )
Pow er piston spring (276) in flo a t bowl.
-►4-
1
.
2
.
3.
Pow er piston rod (266) w it h piston d riv e end
facing aw ay from piston cavity.
Power valve piston assembly (274),
w ith o u t
the
metering rod spring assembly (279).
•
Press do w n on piston and rotate piston rod
to engage slot in piston.
A ssem ble
(Figure 21)
4.
5.
6
.
•
P u m p as se m b ly (246), w i t h n e w p u m p
plunger cup (247), and spring (248), (if not
installed for pu m p system check).
Pump return spring (252) in pu m p well.
New p u m p rod seal (242) o ver boss on f l o a t
bowl.
Pump assembly (246) and pum p rod (240).
Assem ble
(Figure 35)
•
Pump link (317) and po w er rod link (314) to
pum p and pow er rod lever (310) as shown
in Figure 35.
Summary of Contents for 1989 Light Duty Truck
Page 1: ...vr V Light Duty Truck Unit Repair Manual...
Page 2: ......
Page 11: ...GENERAL INFORMATION OA 5 Figure 8 RV Models...
Page 13: ...GENERAL INFORMATION OA 7 Figure 11 ST Models...
Page 18: ......
Page 44: ......
Page 76: ...1B3 18 R 4 AIR CONDITIONING COMPRESSOR N...
Page 114: ......
Page 162: ......
Page 176: ...4B3 14 91 2 INCH RING GEAR...
Page 192: ...4B5 4 DANA REAR AXLES Figure 4 Spreading the Differential Case Figure 7 Removing the Ring Gear...
Page 218: ......
Page 220: ...4B6 2 12 INCH RING GEAR ROCKWELL F 04734 Figure 1 Rear Axle Components...
Page 229: ...12 INCH RING GEAR ROCKWELL 4B6 11 SPECIAL TOOLS Special Tools...
Page 230: ...4B6 12 12 INCH RING...
Page 240: ...4B7 10 LOCKING DIFFERENTIALS SPECIAL TOOLS Special Tools...
Page 260: ...4C2 6 93 4 INCH RING GEAR FRONT AXLE Figure 16 Removing the Pinion Inner Bearing...
Page 273: ...T TRUCK FRONT AXLE 4C3 3 F 05785 Figure 1 Axle Components...
Page 291: ...K TRUCK FRONT AXLE 4C4 3 Figure 1 Front Axle Com ponents K 15 25 Models...
Page 293: ...K TRUCK FRONT AXLE 4C4 5 Figure 3 Front Axle Com ponents K35 Models...
Page 318: ...C4 30 K TRUCK FBOHT AXLE...
Page 334: ......
Page 361: ...2 5 LITER L4 ENGINE 6A1 5 Figure 3 Cylinder Head Manifolds and Components...
Page 363: ...2 5 LITER L4 ENGINE 6A1 7 F 05715 Figure 5 Block and Components...
Page 395: ...2 8 LITER V 6 6A2 3 Figure 1 Engine Lubrication Diagram...
Page 396: ...6A2 4 2 8 LITER V 6 Figure 2 Engine Lubrication Diagram...
Page 424: ...6A2 32 2 8 LITER V 6...
Page 427: ...I 4 3 LITER V 6 6A3 3 Figure 1 Engine Lubrication Diagram B 07857...
Page 451: ...4 3 LITER V 6 6A3 27 SPECIFICATIONS ENGINE SPECIFICATIONS F 6344...
Page 457: ...4 8 LITER L6 6A4 3 Figure 2 Lubrication Diagram Front View...
Page 460: ...6A4 6 4 8 LITER L6 C 1 107 112 fK 108 3 109 165 129 B 05056 Figure 5 Block and Components...
Page 490: ...Ml...
Page 493: ...V8 ENGINE 6A5 3 Figure 1 Lubrication Diagram 5 0L and 5 7L Engines...
Page 494: ...6A5 4 V8 ENGINE Figure 2 Lubrication Diagram 5 0L and 5 7L Engines...
Page 530: ...6A5 40 V8 ENGINE Figure 81 Exhaust Manifold 7 4L Engines Figure 82 Water Pumps and Components...
Page 571: ...6 2 LITER DIESEL 6A7 35 Figure 58 Vacuum Pump Installed...
Page 576: ......
Page 582: ...6C1 6 MODEL 1MEF CARBURETOR Figure 9 Monojet Model 1MEF...
Page 604: ...6C2 6 MODEL M4MEF CARBURETOR Figure 9 Model M4MEF...
Page 640: ...6C4 8 MODEL 700 THROTTLE BODY...
Page 652: ...nmm...
Page 672: ......
Page 693: ...DISTRIBUTORS 6D5 13 Figure 27 Testing the Pickup Coil Figure 28 Testing the Ignition Coil...
Page 696: ......
Page 698: ...7A1 2 700 R4 AUTOMATIC TRANSMISSION Figure 1 Case and External Parts J H 0 0 5 3 7 0 0 R 4 R 2...
Page 745: ...700 R4 AUTOMATIC TRANSMISSION 7A1 49...
Page 762: ...7A2 2 400 475 AUTOMATIC TRANSMISSION Figure 1 Case and External Parts H H 0021 400 R 3...
Page 773: ...400 475 AUTOMATIC TRANSMISSION 7A2 13 Figure 29 Internal Parts H H 0 0 4 3 4 0 0 R 2...
Page 797: ...400 475 AUTOMATIC TRANSMISSION 7A2 37 Figure 93 Control Valve Assem bly...
Page 803: ...400 475 AUTOMATIC TRANSMISSION 7A2 43 Figure 104 Bushing Replacement Procedure...
Page 808: ...J c I i sal...
Page 838: ......
Page 840: ......
Page 842: ......
Page 850: ...7B1 12 HM 290 MANUAL TRANSMISSION J i t i a x V L...
Page 856: ...7B1 18 HM 290 MANUAL TRANSMISSION...
Page 892: ...7B1 54 HM 290 MANUAL TRANSMISSION Figure 93 Special Tools...
Page 897: ...HM 117 TRANSMISSION 7B2 5...
Page 901: ...HM 117 TRANSMISSION 7B2 9 B 05180 Figure 17 Installing the 1st and 2nd Synchronizer...
Page 912: ...20 HM...
Page 924: ...7B3 12 NEW PROCESS TRANSMISSION SPECIAL TOOLS...
Page 927: ...BORG WARNER TRANSMISSIONS 7B4 3 Figure 2 77 mm Transmission and Components...
Page 940: ...i ii iii m i in m i...
Page 944: ...7D1 4 TRANSFER CASE FO 5688 Figure 3 NP205 Transfer Case...
Page 952: ...7D1 12 TRANSFER CASE...
Page 963: ...NEW PROCESS 241 TRANSFER CASE 7D2 11 Figure 17 Oil Pump Pickup Screen Doweled Case Holes...
Page 964: ...7D2 12 NEW PROCESS 241 TRANSFER CASE Figure 18 NP 241 Transfer Case Cut Away...
Page 978: ......
Page 981: ...BORG WARNER 1370 TRANSFER CASE 7D4 3 J...
Page 992: ...7D4 14 BORG WARNER 1370 TRANSFER CASE Figure 26 Installing the Rear Output Yoke...
Page 993: ...BORG WARNER 1370 TRANSFER CASE 7D4 15 Figure 27 BW 1370 Transfer Case...
Page 997: ......
Page 998: ...X 8937...