6A-16 GENERAL ENGINE MECHANICAL
B-05243
3.
Figure 29— Testing the Hydraulic Lifter —
Flat Type Only
Swing the weight arm out of the way, raise the arm,
and position the lifter into the boss in the center of
the tester cup.
5.
6
.
Adjust the ram (with the weight arm clear of the ram)
so that the point is positioned on the set line
(marked “ S” ). Tighten the jam nut to maintain the
setting.
Operate the lifter through full travel of the plunger by
pum ping the weight arm to fill the lifter with test fluid
and force out air.
Im portant
• Lifter must be completely submerged at all
times.
• Continue pumping for several strokes after
definite resistance is felt.
Raise the weight arm to allow the plunger spring to
expand fully; lower the arm onto the ram and
commence turning the crank slowly (1 revolution
every 2 seconds).
Time indicator travel from the lower line (first line
above the set line) to the line marked 0.094 or
3/32-inch, while rotating the cup with crank. The lifter
is satisfactory if the rate is between 12 and 90
seconds.
CYLINDER HEAD
*
DISASSEMBLY
D isassem ble
Valves and components. Refer to the proper section.
CLEANING AND INSPECTION
— Rocker arm studs (if used) for wear, damage or
im proper fit.
— Valve seats for pitting or other damage. Grind or
reface as needed.
— R otators (if used). The rota to rs should rotate
smoothly, without bind.
JJJ* Clean (Figures 30 and 31)
i?
Tools Required:
J 8089 Wire Brush
J 8101 Valve Guide Cleaning Tool
Carbon from the combustion chambers. Use J 8089
(figure 30).
Valve guides. Use J 8101 (figure 31).
Valve stems and heads on a wire wheel.
Carbon and old gasket from the cylinder head
gasket surface.
Inspect
C ylinder head for cracks in the exhaust ports,
combustion chambers, or external cracks to the
coolant chamber. Gasket surfaces should be free of
damage.
Valves for burning, pitting, or warpage. Grind or
replace as needed. Refer to “ Valve G rin d in g .”
Check the valve stems for scoring or excessive
wear. Stems must not be bent.
M easure (Figures 32, 33, and 34)
Tools Required:
J 8001 Dial Indicator (or equivalent)
J 8056 Valve Spring Tester
Valve stem to guide bore clearance.
• Excessive valve stem to guide bore clearance
will cause excessive oil consumption and may
cause valve breakage. Insufficient clearance
will result in noisy and sticky functioning of the
valve and disturb engines smoothness.
• Clamp a Dial Indicator J 8001 (or equivalent)
on one side of the cylinder head rocker arm
cover gasket rail (figure 32).
• Locate the indicator so that movement of the
valve stem from side to side (crosswise to the
head) will cause a direct m ovement of the
in d ic a to r stem . T he in d ic a to r stem m ust
contact the side of the valve stem just above
the valve guide bore.
• Drop the valve head about 1.6 mm (1/ie-inch)
off the valve seat.
Содержание 1989 Light Duty Truck
Страница 1: ...vr V Light Duty Truck Unit Repair Manual...
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Страница 11: ...GENERAL INFORMATION OA 5 Figure 8 RV Models...
Страница 13: ...GENERAL INFORMATION OA 7 Figure 11 ST Models...
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Страница 76: ...1B3 18 R 4 AIR CONDITIONING COMPRESSOR N...
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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...
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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...
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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...
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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...
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Страница 582: ...6C1 6 MODEL 1MEF CARBURETOR Figure 9 Monojet Model 1MEF...
Страница 604: ...6C2 6 MODEL M4MEF CARBURETOR Figure 9 Model M4MEF...
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Страница 693: ...DISTRIBUTORS 6D5 13 Figure 27 Testing the Pickup Coil Figure 28 Testing the Ignition Coil...
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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...
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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...
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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...
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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...
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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...
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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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