Advertisement
GROUP 14
FUEL SYSTEM (PUMP, CARBURETOR, T A N K )
CONTENTS
PART 2-HOLLY
CARBURETOR
. .
PART "BBD
CARBURETOR
. .
The fuel system consists of
Page
Page
. . . . . . . . . . . .
2
PART6-WWC3CARBURETOR
. . . . . . . . . . .
4 9
. . . . . . . . . . . .
5
PART7-AFBCARBURETOR ..
. . . . . . . . . . . .
59
. . . . . . . . . . . .
14
. . . . . . . . . . . . .
69
. . . . . . . . . . . .
24
. . . . . . . . . .
75
. . . . . . . . . . . .
39
. . . . . . . . . . . . .
of
Manual
GENERAL INFORMATION
the fuel tank, fuel
pump, fuel filter, carburetor, fuel lines and vacuum
lines. (See Figure 1.)
The fuel tank assembly consists of the tank, filler
neck cap, air vent, and a fuel gauge sending unit.
In operation, the fuel pump draws fuel from the
tank and forces it to the filter and carburetor. The
carburetor meters the fuel into the air stream drawn
into the engine, in quantities suitable for all engine
speed and load conditions.
The fuel filter for 1965 is a paper element sealed,
disposable type unit, located in the fuel line between
the fuel pump and the carburetor. The filter unit
should be replaced every 20,000 miles.
SERVICING THE CARBURETORS
Often, the carburetor is blamed for a great variety
-9
BOLT-2
Fig. I-Fuel
System Engine Compartment1
of trouble which is classed as "POOR CAR PER-
FORMANCE." Therefore, be definitely sure that the
trouble is not located elsewhere before disassembling
the carburetor.
When overhauling the carburetor, several items of
importance should be observed to assure a good job:
(1)
The carburetor must be completely disassem-
bled.
(2)
All parts (except the choke diaphragm assem-
bly) should be cleaned in a suitable solvent then in-
spected for damage or wear.
(3) Use air pressure only, to clean the various ori-
fices or channels.
(4) Replace questionable parts with NEW ONES.
When checking parts removed from the carburetor,
it is at times difficult to be sure they are satisfactory
for further service. It is therefore recommended that
in such case, NEW parts be installed.
CLEANING CARBURETOR PARTS
The recommended solvent for gum deposits is de-
natured alcohol which is easily obtainable. However,
there are other commercial solvents which may be
used with satisfactory results.
The choke diaphragm can be damaged by solvents.
Avoid placing the diaphragm assembly in
A N Y
liq-
uid. Clean the external surfaces with a clean cloth or
a soft wire brush. Shake dirt or other foreign material
from the stem (plunger) side of the diaphragm.
De-
pressing the stem to the retracted position, will pro-
vide an additional hole for the removal of dirt. Com-
pressed air can be used to remove loose dirt
but
should not be connected to the vacuum diaphragm
fitting.
IMPORTANT: If the commercial solvent or cleaner
recommends the use of water as a rinse, it should
be
"HOT." After rinsing, all trace of water must be
blown from the passages with air pressure. It is fur-
ther advisable to rinse
all parts in clean kerosene
or gasoline to be certain no trace of moisture re-
mains. Never clean jets with a wire, drill, or other
mechanical means, because the orifices may be-
I
Hide quick links:
Advertisement
