5D-28 - WEBER 4 BARREL CARBURETOR
90-823225--1 1096
30. Remove mixture screws.
70467
b
a
a - Idle Mixture Screw
b - Spring, Idle Mixture Screw
Cleaning and Inspection
!
CAUTION
Rubber, plastic parts, pump plungers or dia-
phragms cannot be immersed in carburetor
cleaner.
!
CAUTION
Avoid damage to carburetor. Do not leave carbu-
retor in immersion-type cleaner for more than
two hours.
IMPORTANT: Do not immerse metering rod
springs in carburetor cleaner; the color, if not
“natural” metal, may be removed. Clean
separately as needed.
1. Clean metal carburetor parts in a commercial, im-
mersion-type cleaner, until all deposits have
been removed. Follow manufacturer’s instruc-
tions of cleaner being used for proper cleaning
and rinsing procedures.
!
CAUTION
Avoid personal injury. Always wear safety
glasses when using compressed air.
2. Blow out passages with compressed air. Do not
drill through passages.
IMPORTANT: DO NOT use a wire or drill to clean
jets, passages, or tubes in carburetor, as this
may enlarge orifices and seriously affect carbu-
retor calibration.
3. Wipe all parts that cannot be cleaned in immer-
sion cleaner with a clean, dry cloth.
4. Carefully inspect all carburetor parts for damage
or wear; pay particular attention to the following:
a. Idle mixture screws - Replace if damaged or
worn.
b. Fuel inlet needle valve and seat - Replace
with new needle and seat if worn or damaged.
c. Casting surfaces - Inspect accelerator
pump plunger well for scoring or deposits.
Replace worn or corroded components.
d. All linkage rods and levers - Replace if
worn or damaged.
e. Accelerator pump and plunger parts - Re-
place pump and parts if worn or damaged.
f.
Float assembly and hinge pin - Float weight
of each should be the same. Replace either
if fuel can be heard inside when shaken.
Check hinge pin and holes for wear. Replace
components if worn or defective.
g. Throttle valves and shafts - Check for bind-
ing (through entire operating range, making
sure valves open and close completely) or for
looseness in carburetor body.
IMPORTANT: DO NOT remove throttle valves. If
any of the throttle parts or float bowl/carburetor
body shaft bores are found to be worn or dam-
aged, carburetor replacement is required.
h. Choke valve and shaft/lever assembly -
Check shaft and lever for excessive loose-
ness in air horn. Check choke valve and
shaft/lever assembly for binding through en-
tire operating range. Air horn assembly must
be replaced if choke valve and shaft/lever are
worn.
5. Check that choke pull-off diaphragm plunger re-
tracts when vacuum is applied to unit, and that it
holds vacuum (plunger remains seated if vacuum
is maintained).
Содержание 305 CID
Страница 7: ...A 1 72000 IMPORTANT INFORMATION GENERAL INFORMATION...
Страница 16: ...B 1 IMPORTANT INFORMATION MAINTENANCE...
Страница 59: ...C 1 IMPORTANT INFORMATION TROUBLESHOOTING...
Страница 92: ...A 2 72975 REMOVAL AND INSTALLATION MCM MODELS ALPHA ONE DRIVES...
Страница 103: ...B 2 70246 REMOVAL AND INSTALLATION MCM MODELS ALPHA ONE DRIVES WITH DRIVESHAFT EXTENSION...
Страница 120: ...2 72580 C REMOVAL AND INSTALLATION MCM MODELS BRAVO DRIVES...
Страница 135: ...D 2 70246 REMOVAL AND INSTALLATION MCM MODELS BRAVO DRIVES WITH DRIVESHAFT EXTENSION...
Страница 154: ...E 2 70648 REMOVAL AND INSTALLATION MIE MODELS VELVET DRIVE TRANSMISSIONS...
Страница 173: ...F 2 25280 REMOVAL AND INSTALLATION MIE MODELS HURTH TRANSMISSIONS...
Страница 189: ...A 3 72615 ENGINE 5 0L 305 CID 5 7L 350 CID...
Страница 192: ...3A 0 ENGINES 90 823225 1 1096...
Страница 266: ...ELECTRICAL SYSTEMS STARTING SYSTEM A 72079 4...
Страница 284: ...STARTING SYSTEM 4A 17 90 823225 1 1096 THIS PAGE IS INTENTIONALLY BLANK...
Страница 308: ...B 4 72722 90 823224 692 4B IGNITION SYSTEM ELECTRICAL SYSTEMS THUNDERBOLT IV AND V IGNITION SYSTEM...
Страница 334: ...C 4 72078 ELECTRICAL SYSTEM CHARGING SYSTEM...
Страница 344: ...CHARGING SYSTEM 4C 9 90 823225 1 1096 THIS PAGE IS INTENTIONALLY BLANK...
Страница 360: ...D 4 72747 ELECTRICAL SYSTEM INSTRUMENTATION...
Страница 380: ...E 4 72761 ELECTRICAL SYSTEM ELECTRICAL KITS...
Страница 393: ...F 4 72938 ELECTRICAL SYSTEMS WIRING DIAGRAMS...
Страница 427: ...A 5 50830 90 823224 692 5A FUEL DELIVERY SYSTEMS AND FUEL PUMPS FUEL SYSTEM FUEL DELIVERY SYSTEMS AND FUEL PUMPS...
Страница 438: ...B 5 72681 FUEL SYSTEM MERCARB 2 BARREL CARBURETOR...
Страница 467: ...C 5 72085 FUEL SYSTEMS ROCHESTER 4 BARREL CARBURETOR...
Страница 497: ...D 5 70389 90 823224 692 5B WEBER 4 BARREL CARBURETOR FUEL SYSTEMS WEBER 4 BARREL CARBURETOR...
Страница 538: ...5 71692 E FUEL SYSTEMS MULTI PORT AND THROTTLE BODY FUEL INJECTION...
Страница 541: ...90 823225 1 1096 5E 0 ELECTRONIC FUEL INJECTION MULTI PORT AND THROTTLE BODY THIS PAGE IS INTENTIONALLY BLANK...
Страница 558: ...ELECTRONIC FUEL INJECTION MULTI PORT AND THROTTLE BODY 5E 17 90 823225 1 1096 THIS PAGE IS INTENTIONALLY BLANK...
Страница 591: ...90 823225 1 1096 5E 50 ELECTRONIC FUEL INJECTION MULTI PORT AND THROTTLE BODY THIS PAGE IS INTENTIONALLY BLANK...
Страница 727: ...F 5 73662 FUEL SYSTEMS BOS SAV EMISSIONS...
Страница 744: ...A 6 22381 COOLING SYSTEM SEAWATER COOLING MODELS...
Страница 773: ...B 6 72987 COOLING SYSTEM CLOSED COOLED MODELS...
Страница 823: ...A 7 72699 EXHAUST SYSTEM GENERAL...
Страница 828: ...THIS PAGE IS INTENTIONALLY BLANK TO ALLOW FOR CORRECTIONS OR ADDITIONS AT A LATER DATE 7A 4 GENERAL 90 823225 1 1096...
Страница 829: ...B 7 72695 EXHAUST SYSTEM MANIFOLDS AND ELBOWS...
Страница 835: ...C 7 70593 EXHAUST SYSTEM RISERS...
Страница 843: ...THIS PAGE IS INTENTIONALLY BLANK TO ALLOW FOR CORRECTIONS OR ADDITIONS AT A LATER DATE RISERS 7C 7 90 823225 1 1096...
Страница 844: ...D 7 72737 EXHAUST SYSTEM COLLECTORS...
Страница 855: ...THIS PAGE IS INTENTIONALLY BLANK TO ALLOW FOR CORRECTIONS OR ADDITIONS AT A LATER DATE 7D 10 COLLECTORS 90 823225 1 1096...
Страница 856: ...A 8 DRIVES VELVET DRIVE IN LINE TRANSMISSION...
Страница 869: ...B 8 DRIVES VELVET DRIVE V DRIVE AND WALTER V DRIVE TRANSMISSION...
Страница 882: ...C 8 25280 DRIVES HURTH DOWN ANGLE TRANSMISSION...
Страница 932: ...E 8 DRIVES DRIVE SHAFT PROPELLER SHAFT MODELS...
Страница 947: ...A 9 72951 POWER STEERING PUMP...