Hudson Terraplane K 1934 Mechanical Procedure Manual page 29

increases around the thermostatic coil, it loses its tension
allowing the choke to open gradually.
After it reaches full open position it will remain open by
its own weight. When the engine is stopped the thermostatic
coil cools off allowing choker to close.
Slow and Fast Idle
When the choke valve is closed by the climatic control a
bar falls down behind the throttle adjusting screw holding it
off its seat so that the throttle is held open sufficiently to
give an idle speed of approximately 15 m.p.h. This gives the
correct throttle opening for starting and prevents the engine
stalling during the warm up period. As the engine warms up
and the choke valve opens, the high idle bar is raised so
that the throttle can close to its normal idle position.
SINGLE CARBURETORS
Disassembly
When disassembling or reassembling the carbure-
tor, particularly when removing or installing plugs
and jets, always use screw drivers that fit the screw
slots. Improper screw drivers or improper handling
will damage the parts with the possibility of partial
clogging of passages either due to the damage or
shavings cut off the parts. The Hudson Tune-tip
Kit J-819-B includes four special screw drivers to
handle the carburetor work as well as the special
gauges necessary for adjustment.
After the carburetor is off the car proceed with the
disassembly as follows:
(1) Remove dust cover (D), lock washer and
attaching screw (Figure 408).
(2) Remove both pin springs (lower and upper)
on connector rod, to remove rod, on front of carburetor.
MECHANICAL PROCEDURE MANUAL
(3) Remove pin spring and connector link that connects
accelerating plunger to operating arm.
(4) Remove both attaching screws on fast idle bar.
(Climatic control equipment only.)
(5) Remove pin spring from choke lever pin and disconnect
upper end of high idle link.
(6) Remove main nozzle plug and nozzle. Do not lose
nozzle gasket, or plug washer (copper). Main nozzle must
always be removed before removing air horn assembly.
(7) Remove both attaching screws on air horn. Do not lose
lock washers.
(8) Remove bowl cover attaching screw, that holds throttle
retard
assembly. Also remove pin springs from plunger connector
link.
(9) Remove attaching screw that holds air horn assembly
from lower side of air horn (under climatic control housing-
1936 Climatic Control equipment only). Then remove air
horn assembly.
(10) Remove pin spring and connector link that connects
throttle retard plunger shaft to arm assembly.
(11) Remove pin spring and unhook metering rod spring,
then remove metering rod and disk from bowl cover.
(12) Remove pin spring and throttle shaft dog spring (front
of throttle shaft) to remove throttle connector rod.
plunger arm and bracket assembly.
SECTION 4
Page 7
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