
ENGINE-ELECTRICAL 6Y-22
F ig . 8 i—Inaccurate G auging of Rough Points
adequate lubrication for cam. Do not apply ad
ditional grease to cam surface.
7. Start engine and check point dwell and ignition
timing.
SETTING DWELL ANGLE
Four and Six Cylinder Engine Distributors
The point opening of new points can be checked with a
feeler gauge, but the use of a feeler gauge on rough or
uncleaned used points is not recommended since accurate
mechanical gauging cannot be done on such points (fig.
8
i).
Contact points must be set to the proper opening.
Points set too close may tend to burn and pit rapidly.
Points with excessive separation tend to cause a weak
spark at high speed. Proper point setting for all models
are:
.019" for new points
.016" for used points
F ig . lO i—Setting Point O pening
New points must be set to the larger opening as the
rubbing block will wear down slightly while seating to the
cam. Contact points should be cleaned before adjusting if
they have been in service.
To adjust the contact point opening:
1. If necessary, align points (fig. 9i) by bending the
fixed contact support. Do not bend the breaker lever.
Do not attempt to align used points; replace them
where serious misalignment is observed. Use an
aligning tool if available.
2. Turn or crank the distributor shaft until the breaker
arm rubbing block is on the high point of the cam
lobe. This will provide maximum point opening.
3. Loosen the contact support lock screw.
4. Use a screw driver (fig. lOi) to move the point sup
port to obtain a .019" opening for new points and a
.016" opening for used points.
5. Tighten the contact support lock screw and recheck
the point opening.
6
. After checking and adjusting the contact point opening
to specifications, the cam angle or dwell should be
checked with a dwell angle meter if such equipment
is available (see Specifications for proper dwell
angle). If the cam angle is less than the specified
minimum, check for defective or misaligned contact
points or worn distributor cam lobes. The variation
in cam angle readings between idle speed and 1750
engine rpm should not exceed 3°. Excessive variation
in this speed range indicates wear in the distributor.
NOTE:
Cam angle readings taken at speeds
above 1750 engine rpm may prove unreliable
on some cam angle meters.
Eight Cylinder Engine Distributor
On the Vehicle
With the engine running at idle and operating tempera
tures normalized, the dwell is adjusted by first raising
CHEVROLET TRUCK SERVICE MANUAL
Содержание 10 Series 1967
Страница 1: ...CHASSIS V3 a n s W U gw...
Страница 2: ......
Страница 28: ......
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...
Страница 280: ......
Страница 324: ...I I...
Страница 336: ...ENGINE FUEL 6M 12 CHEVROLET TRUCK SERVICE MANUAL...
Страница 342: ......
Страница 348: ......
Страница 386: ......
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...
Страница 474: ...w j...
Страница 486: ......
Страница 500: ...1...
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...
Страница 568: ......
Страница 576: ......
Страница 580: ...1...
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...