Advertisement
CARBURETOR-W
W3
14-39
tacting the slowest speed step on the fast idle cam,
(Fig. 1 6 ) .
(4)
With the engine warmed-up to the normal oper-
ating temperature, turn the fast idle adjusting
screw
in
or
out
to secure 700 rpm. (Automatic
Transmission) or 600 rpm (Manual Transmission).
Re-
position the cam and throttle after every screw
ad-
justment to apply normal throttle closing torque.
*After Approx. 500 Miles (If Necessary).
Spring Staged Choke Adjustment
The new spring staged choke, shown in (Fig. 17)
is a device incorporated in the choke mechanism which
limits the choke blade closing torque when cranking
the engine at temperatures below zero. Thus the
spring staging of the choke is a better match for the
engine's starting mixture requirements at the low tem-
peratures.
To check the spring staged choke for correct oper-
ating clearance, refer to Figure 20, then proceed as
follows:
(1) Push on the hub lever with the finger, at the
closed choke position. A small opening should exist
between the shaft and the hub levers, as shown in
(Fig. 17).
(2)
Using a drill or gauge, measure the opening.
The opening should be from .020 to .030 inches.
(3) If an adjustment is necessary, bend the hub le-
ver tang until the correct opening ha6 been obtained.
PART 5
WW3 STROMBERG CARBURETORS
Description
There are two models of the WW3 series carburetor,
depending on the type of transmission with which
the vehicle is equipped. The same basic design applies
to all models regardless of adaptions. Refer to Speci-
fications for detailed information.
DIAPHRAGM STEM
I
CHOKE VALVE
ACCELERATOR PUMP
CHOKE,LEVER
\
.,
ROCKER ARM
/
ACCELERATOR PUMP
PLUNGER STEM
V4CUUM HOSE
\
A-
CHO
BOWL VENT VALVE
IDLE SPEED
ADJUSTING
SCREW
FAST IDLE ROD
%SPRING
FUEL INLET NEEDLE,
/SEAL
AND GASKET
CHOKE CONNECTOR LINK
VACUUM
FAST IDLE CAM
DIAPHRAGM
-
, I
LEVER
CHOKE
U NLO ADER
TANG
, !
ADJUSTING
IDLE
'SPEED
FAST IDLE SPEED
SCREW
ADJUSTING SCREW
i
INSULATOR
IDLE MIXTURE
ADJUSTING
SCREW (2)
FAST
IDLE
SPEED
ADJUSTING SCREW
ELEVATOR LEGS
(SET OF 4)
CLOSED CRANKCASE
VENT TUBE FITTING
NK439
Fig. I-Carburetor
Assembly f W W 3 - 2 4 8 , 2 4 9 , 2 5 0 and 2511
Hide quick links:
Advertisement
