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AIR INJECTOR REACTOR SYSTEM 6T-2
PU M P
C O V E R
IN TAK E
TUBE
PU M P
H O U S IN G
P R ESSU R E
RELIEF V A LV E
VALVE IN
OPEN
POSITION
AIR INLET
VALVE IN
CLOSED
POSITION
DIAPHRAGM
POSITIONS
CHECK
VALVE
Fig. 2—A ir In jectio n Pump
engine component that operates in conjunction with the
A.I.R. system should malfunction, the exhaust emissions
might be increased.
Because of the relationship between "Engine Tune Up"
Fig. 3—M ixtu re Control V a lv e
and “ Unburned Exhaust Gases” , the condition of the En
gine Tune Up should be checked whenever the A.I.R. Sys
tem seems to be malfunctioning. Particular care should
be taken in checking items that affect fuel - air ratio such
as the crankcase ventilation system, the carburetor and
the carburetor air cleaner.
Because of the similarity of many parts, typical illus
trations and procedures are used except where specific
illustrations or procedures are necessary to clarify the
operation.
MAINTENANCE PROCEDURES
Drive Belt
Inspection
• Inspect drive belt for wear, cracks or deterioration
and replace if required.
• Inspect belt tension and adjust if below 50 lbs. using
a strand tension gauge.
Adjustment
• Loosen pump mounting bolt and pump adjustment
bracket bolt.
• Move pump until belt is tight (55 ± 5 lb. used belt or
75 ± 5 lb. new belt using a strand tension gauge) then
tighten adjustment bracket bolt and mounting bolt.
CAUTION: Do not pry on the pump housing.
Distortion of the housing will result in extensive
damage to the Air Injection Pump.
Replacement
• Loosen pump mounting bolt and pump adjustment
bracket bolt then swing pump until drive belt may be
removed.
• Install a new drive belt and adjust as outlined above.
Drive Pulley
Replacement
• Remove drive belt as outlined above then replace
drive pulley.
• Install and adjust drive belt as outlined above.
Pump Pulley
Replacement
• Hold pump pulley from turning by compressing drive
belt then loosen pump pulley bolts.
• Remove drive belt as outlined above then remove
pump pulley.
• Install pump pulley with retaining bolts hand tight.
• Install and adjust drive belt as outlined above.
• Hold pump pulley from turning by compressing drive
belt then torque pump pulley bolts to
25
ft. lbs.
• Recheck drive belt tension and adjust if required.
Air Manifold, Hose and Tube
Inspection (Fig. 4)
• Inspect all hoses for deterioration or holes.
• Inspect all tubes for cracks or holes.
• Check all hose and tube connections.
• Check all tube and hose routing. Interference may
cause wear.
• If leak is suspected on the pressure side of the sys
tem or any tubes and/or hoses have been discon
nected on the pressure side, the connections should
be checked for leaks with a soapy water solution.
With the pump running, bubbles will form if a leak
exists.
Replacement
• To replace any hose and/or tube, note routing then
CHEVROLET TRUCK SERVICE M ANUAL
Содержание 10 Series 1967
Страница 1: ...CHASSIS V3 a n s W U gw...
Страница 2: ......
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Страница 39: ...HEATER AND AIR CONDITIONING 1A 11 EVAPORATOR OUTLET Fig 20 Airflow Schematic CHEVROLET TRUCK SERVICE MANUAL...
Страница 80: ...BODY IB 18 Fig 41 Exploded View of Level Ride Seat CHEVROLET TRUCK SERVICE MANUAL...
Страница 89: ...BODY IB 27 CHEVROLET TRUCK SERVICE MANUAL...
Страница 105: ...BODY IB 43 Fig 94 Check Link Assembly Typical CHEVROLET TRUCK SERVICE MANUAL...
Страница 117: ...BODY IB 55 Fig 116 A uxiliary Seat CHEVROLET TRUCK SERVICE MANUAL...
Страница 121: ...Fig 4 1 0 3 0 Series Truck Frame...
Страница 122: ...Fig 5 4 0 6 0 Single A xle Truck Frames Exc T ilt Cab FRAME 2 4...
Страница 124: ...CHEVROLET TRUCK SERVICE MANUAL 1 Ficu 7 4 0 6 0 Series T ilt Cab Truck Frames FRAME 2 6...
Страница 128: ...CHEVROLET TRUCK SERVICE MANUAL Fig 8 Underbody Reference Points and Dimensions Chevy Van G10 and 20 FRAME 2 10...
Страница 207: ...REAR SUSPENSION AND DRIVE LINE 4 49 Fig 91 Tandem Rear Axles and Power Divider CHEVROLET TRUCK SERVICE MANUAL...
Страница 228: ...BRAKES 5 12 TD 50 60 Fig 23 Parking Brake Cables T Models CHEVROLET TRUCK SERVICE MANUAL...
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Страница 336: ...ENGINE FUEL 6M 12 CHEVROLET TRUCK SERVICE MANUAL...
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Страница 393: ...CHEVROLET TRUCK SERVICE MANUAL CLUTCHES AND TRANSMISSIONS 7 7...
Страница 452: ...FUEL TANK AND EXHAUST SYSTEMS 8 6 Fig 7 Fuel Lines and Filter CD50 60 CHEVROLET TRUCK SERVICE MANUAL...
Страница 472: ...STEERING 9 18 Fig 31 Typical Power Steering Hose Routing CHEVROLET TRUCK SERVICE MANUAL...
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Страница 502: ...l c t r iC al 12 2...
Страница 506: ...ELECTRICAL BODY AND CHASSIS 12 6 VIEW C Fig 9 Front Lighting Assemblies CHEVROLET TRUCK SERVICE MANUAL...
Страница 532: ...ELECTRICAL BODY AND CHASSIS 12 32 Fig 42 Engine Compartment PT 20 30 CHEVROLET TRUCK SERVICE MANUAL...
Страница 535: ...ELECTRICAL BODY AND CHASSIS 12 35 Fig 45 Engine Compartment CS40 50 60 MS60 CHEVROLET TRUCK SERVICE MANUAL...
Страница 561: ...ELECTRICAL BODY AND CHASSIS 12 61 18 DG 18 DG Fig 71 Instrument Panel G A 10 20 CHEVROLET TRUCK SERVICE MANUAL...
Страница 562: ...ELECTRICAL BODY AND CHASSIS 12 62 Fig 72 Engine and Tail Lamps G A 10 20 CHEVROLET TRUCK SERVICE MANUAL...
Страница 566: ...ELECTRICAL BODY AND CHASSIS 12 66 Fig 76 Engine Compartment SE50 60 CHEVROLET TRUCK SERVICE MANUAL...
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Страница 587: ...SPECIFICATIONS 7 ENGINE SECTION 6 8 25 1 on CE TE400 Series CHEVROLET TRUCK SERVICE MANUAL...
Страница 590: ...SPECIFICATIONS 10 ENGINE TORQUES CHEVROLET TRUCK SERVICE MANUAL...