2.8 LITER V-6 6A2-25
VALVE ADJUSTMENT
1. Crank the engine until the mark on the torsional
dam per lines up with the “ O ” mark on the timing
tab and the e ng in e in the num be r one firin g
position. This may be determined by placing fingers
on the number one valve as the mark on the dam per
comes near the “ O ” mark on the tim ing tab. If the
rocker arms are not moving, the engine is in the
num ber one firing position. If the rocker arms move
as the mark comes up to the tim ing tab, the engine
is in the number four firing position and should be
turned over one more time to reach the num ber one
position.
2. With the engine in the num ber one firing position as
determ ined above, the follow ing valves may be
adjusted:
— Exhaust: 1, 2, 3
— Intake: 1, 5, 6
(Even numbered cylinders are in the left bank; odd
numbered cylinders are in the right bank, when
viewed from the rear of the engine).
3. Back out the adjusting nut until lash if felt at the
pushrod then turn in the adjusting nut until all lash
is removed. This can be determined by rotating the
pushrod while turning the adjusting nut (figure 41).
W h e n th e p la y has been rem ove d, tu rn th e
adjusting nut in one and one-half additional turns (to
center the lifter plunger).
4. Crank the engine one revolution until the tim ing tab
“ O ” mark and vibration dam per mark are again in
alignment. This is the num ber four firing position.
The following valves may be adjusted:
— Exhaust: 4, 5, 6
— Intake: 2, 3, 4
INTAKE MANIFOLD
INSTALLATION
+ +
In sta ll o r C o n n e ct (F igure 42)
1. RTV to the front and rear sealing surfaces on the
block. Apply a 5 mm (3/ie-inch) bead of RTV (part
num ber 1052917 or equivalent) to the front and rear
of the block as shown.
• Make sure that no oil or water is present on
the surfaces to be sealed.
2. Gaskets to the cylinder head.
• Gaskets are marked Right Side or Left Side and
“ This Side Up” . Use them only as indicated to
maintain design efficiency of the engine.
• Hold the gaskets in place by extending the
bead of RTV 6 mm (1/4-inch) from the block
sealing surfaces up onto the gasket ends.
• The new gaskets will have to be cut where
indicated to install b eh in d'th e pushrods. Cut
only the areas where necessary.
3. Intake manifold.
• Make sure the areas between the case ridges
and the intake manifold are completely sealed.
4. Intake manifold bolts and nuts.
$
T ig h ten
Nuts and bolts to 21 N-m (15 ft. lbs.) in the
sequence shown in figure 42. Then re-torque in
the same sequence.
ROCKER ARM COVER
INSTALLATION
Clean
• All traces of old gasket from the rocker arm cover
and cylinder head.
Inspect
• Rocker arm cover sealing surfaces for distortion.
Replace if necessary.
Install or C o nnect (Figure 43)
1. Rocker arm cover and gasket.
• Apply a 5 mm (3/ie-inch) dab of RTV sealant
(GM Part No. 1052917 or equivalent) at the
point where the inlet manifold meets the head.
2. Rocker arm cover nuts and reinforcements.
Tig h ten
• Nuts to 8 N-m (6 ft. lbs.).
Содержание 1989 Light Duty Truck
Страница 1: ...vr V Light Duty Truck Unit Repair Manual...
Страница 2: ......
Страница 11: ...GENERAL INFORMATION OA 5 Figure 8 RV Models...
Страница 13: ...GENERAL INFORMATION OA 7 Figure 11 ST Models...
Страница 18: ......
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Страница 76: ...1B3 18 R 4 AIR CONDITIONING COMPRESSOR N...
Страница 114: ......
Страница 162: ......
Страница 176: ...4B3 14 91 2 INCH RING GEAR...
Страница 192: ...4B5 4 DANA REAR AXLES Figure 4 Spreading the Differential Case Figure 7 Removing the Ring Gear...
Страница 218: ......
Страница 220: ...4B6 2 12 INCH RING GEAR ROCKWELL F 04734 Figure 1 Rear Axle Components...
Страница 229: ...12 INCH RING GEAR ROCKWELL 4B6 11 SPECIAL TOOLS Special Tools...
Страница 230: ...4B6 12 12 INCH RING...
Страница 240: ...4B7 10 LOCKING DIFFERENTIALS SPECIAL TOOLS Special Tools...
Страница 258: ...4C2 4 93 4 INCH RING GEAR FRONT AXLE F 04756 Figure 4 Spreading the Differential Case Figure 7 Removing the Ring Gear...
Страница 259: ...93 4 INCH RING GEAR FRONT AXLE 4C2 5 Figure 10 Removing the Pinion Gears Figure 13 Pinion Flange Removal...
Страница 260: ...4C2 6 93 4 INCH RING GEAR FRONT AXLE Figure 16 Removing the Pinion Inner Bearing...
Страница 273: ...T TRUCK FRONT AXLE 4C3 3 F 05785 Figure 1 Axle Components...
Страница 291: ...K TRUCK FRONT AXLE 4C4 3 Figure 1 Front Axle Com ponents K 15 25 Models...
Страница 293: ...K TRUCK FRONT AXLE 4C4 5 Figure 3 Front Axle Com ponents K35 Models...
Страница 318: ...C4 30 K TRUCK FBOHT AXLE...
Страница 334: ......
Страница 361: ...2 5 LITER L4 ENGINE 6A1 5 Figure 3 Cylinder Head Manifolds and Components...
Страница 363: ...2 5 LITER L4 ENGINE 6A1 7 F 05715 Figure 5 Block and Components...
Страница 395: ...2 8 LITER V 6 6A2 3 Figure 1 Engine Lubrication Diagram...
Страница 396: ...6A2 4 2 8 LITER V 6 Figure 2 Engine Lubrication Diagram...
Страница 424: ...6A2 32 2 8 LITER V 6...
Страница 427: ...I 4 3 LITER V 6 6A3 3 Figure 1 Engine Lubrication Diagram B 07857...
Страница 446: ...6A3 22 4 3 LITER V 6 F 04488 A Forward B Sealant 70 Gasket 71 R einforcem ent Figure 37 Oil Pan Installation...
Страница 451: ...4 3 LITER V 6 6A3 27 SPECIFICATIONS ENGINE SPECIFICATIONS F 6344...
Страница 457: ...4 8 LITER L6 6A4 3 Figure 2 Lubrication Diagram Front View...
Страница 459: ...4 8 LITER L6 6A4 5 11 12 13 9 15 sT iM V le JsJ 1 1 K V 7 B 07997 Figure 4 Cylinder Head Manifolds and Components...
Страница 460: ...6A4 6 4 8 LITER L6 C 1 107 112 fK 108 3 109 165 129 B 05056 Figure 5 Block and Components...
Страница 490: ...Ml...
Страница 493: ...V8 ENGINE 6A5 3 Figure 1 Lubrication Diagram 5 0L and 5 7L Engines...
Страница 494: ...6A5 4 V8 ENGINE Figure 2 Lubrication Diagram 5 0L and 5 7L Engines...
Страница 530: ...6A5 40 V8 ENGINE Figure 81 Exhaust Manifold 7 4L Engines Figure 82 Water Pumps and Components...
Страница 571: ...6 2 LITER DIESEL 6A7 35 Figure 58 Vacuum Pump Installed...
Страница 576: ......
Страница 582: ...6C1 6 MODEL 1MEF CARBURETOR Figure 9 Monojet Model 1MEF...
Страница 604: ...6C2 6 MODEL M4MEF CARBURETOR Figure 9 Model M4MEF...
Страница 640: ...6C4 8 MODEL 700 THROTTLE BODY...
Страница 652: ...nmm...
Страница 672: ......
Страница 693: ...DISTRIBUTORS 6D5 13 Figure 27 Testing the Pickup Coil Figure 28 Testing the Ignition Coil...
Страница 696: ......
Страница 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...
Страница 707: ...700 R4 AUTOMATIC TRANSMISSION 7A1 11 682 A JH 0 0 7 1 700R4 R2 Figure 20 Transmission Internal Parts...
Страница 745: ...700 R4 AUTOMATIC TRANSMISSION 7A1 49...
Страница 762: ...7A2 2 400 475 AUTOMATIC TRANSMISSION Figure 1 Case and External Parts H H 0021 400 R 3...
Страница 773: ...400 475 AUTOMATIC TRANSMISSION 7A2 13 Figure 29 Internal Parts H H 0 0 4 3 4 0 0 R 2...
Страница 797: ...400 475 AUTOMATIC TRANSMISSION 7A2 37 Figure 93 Control Valve Assem bly...
Страница 803: ...400 475 AUTOMATIC TRANSMISSION 7A2 43 Figure 104 Bushing Replacement Procedure...
Страница 808: ...J c I i sal...
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Страница 850: ...7B1 12 HM 290 MANUAL TRANSMISSION J i t i a x V L...
Страница 856: ...7B1 18 HM 290 MANUAL TRANSMISSION...
Страница 892: ...7B1 54 HM 290 MANUAL TRANSMISSION Figure 93 Special Tools...
Страница 897: ...HM 117 TRANSMISSION 7B2 5...
Страница 901: ...HM 117 TRANSMISSION 7B2 9 B 05180 Figure 17 Installing the 1st and 2nd Synchronizer...
Страница 912: ...20 HM...
Страница 917: ...NEW PROCESS TRANSMISSION 7B3 5 Figure 4 Removing the Mainshaft Figure 5 Removing the Reverse Idler Shaft...
Страница 924: ...7B3 12 NEW PROCESS TRANSMISSION SPECIAL TOOLS...
Страница 927: ...BORG WARNER TRANSMISSIONS 7B4 3 Figure 2 77 mm Transmission and Components...
Страница 940: ...i ii iii m i in m i...
Страница 944: ...7D1 4 TRANSFER CASE FO 5688 Figure 3 NP205 Transfer Case...
Страница 952: ...7D1 12 TRANSFER CASE...
Страница 963: ...NEW PROCESS 241 TRANSFER CASE 7D2 11 Figure 17 Oil Pump Pickup Screen Doweled Case Holes...
Страница 964: ...7D2 12 NEW PROCESS 241 TRANSFER CASE Figure 18 NP 241 Transfer Case Cut Away...
Страница 970: ...7D3 4 NEW PROCESS 231 TRANSFER CASE F 05849 L Figure 3 New Process 231 Transfer Case Components...
Страница 978: ......
Страница 981: ...BORG WARNER 1370 TRANSFER CASE 7D4 3 J...
Страница 992: ...7D4 14 BORG WARNER 1370 TRANSFER CASE Figure 26 Installing the Rear Output Yoke...
Страница 993: ...BORG WARNER 1370 TRANSFER CASE 7D4 15 Figure 27 BW 1370 Transfer Case...
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Страница 998: ...X 8937...