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H U D S O N E I G H T
hesitates, then clockwise one notch at a time until the engine runs smoothly.
The heat supplied, to the carburetor from the exhaust is automatically
controlled by a thermostat and requires no adjustment.
The air cleaner unit should be cleaned every 2500 miles, except under
extremely dusty operating conditions when the cleaning should be more
frequent. The unit can be lifted off the carburetor silencer after removing the
thumbscrews "D." Wash in gasoline and then soak with engine oil. Drain off
excess oil and replace.
Fan and Water Pump
To adjust the belt, loosen the nut "A" and raise
the fan until the belt can be deflected 5/8" below
a straightedge laid on the fan and pump pulleys.
This measurement of deflection is indicated in
the illustration at "B."
Do not adjust the belt too tight as it will throw
an excessive load on the fan and pump bearings.
Adjust the water pump packing gland "C"
finger tight. Do not tighten with a wrench as the
packing may bind the shaft and ,throw a heavy
load on the belt.
Carburetor
Spark plugs and breaker points
should be cleaned, spark gaps prop-
erly spaced and all residue in gasoline
passages removed before adjusting
the carburetor.
See page 25 for removal of vacuum
tank filter to stop flow of gasoline
while cleaning carburetor.
Clean carburetor filter screen "B."
Adjust set screw "C" for correct
idling speed of seven miles per hour.
Turn air screw "A" until the end is
flush with the end of the ratchet
spring bearing against it. This is the
normal mixture adjustment and the
final setting should be within M turn
of this point. Warm engine to proper
operating temperature. Turn air screw
counterclockwise until the engine
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A D J U S T M E N T
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