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10-.
2 3
PART
10-3
STROMBERG CARBURETTOR- WW SERIES
250C.I.D. 2 V- 302 C.I.D. ENGINES
Section
1 Description and Operation
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10-23
Description
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10-23
Operation
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10-24
2
Invehicle Adjustments and Repairs ........ 10-28
Carburettor Adjustments
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10-28
Idle
Speed and Mixture Adjustment ...... 10-29
Idle Limiter Cap Replacement
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10-31
D
DESCRIPTION AND OPERATION
DESCRIPTION
Section
3 Major Repair Operations .............. 10-31
Carburettor Repairs
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Disassembly
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Inspection
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10-31
Assembly
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10-32
Final Assembly
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10-33
In
common
with other WW series carburettors, these units are of the dual-barrel downdraught
type
with each barrel having its own Idle System, Main Metering System and Throttle Valve. The
two barrels
have a
common
Float System, Accelerating System and Power System. Each barrel is equipped with
a main
and an auxiliary Venturi (Choke Tube).
The
carburettors
employ an automatic choke control situated in
the
throttle body,
and activated by
hot air delivered to the choke control through a pipe attached to the exhaust manifold.
The float chamber is vented to atmosphere at closed throttle, (i.e. when idling or stopped)
and to
carburettor air inlet pressure, through a passage and vent tube in the air horn, at all other throttle
positions.
The vacuum connection for the distributor vacuum spark advance is located in the main body. A drilled
passage through the main body meets a channel in the throttle body to transmit the vacuum from the
vacuum spark hole (or holes) located in the throttle body.
A steel connector for the positive crankcase ventilation hose is located in the carburettor throttle body.
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