Hudson 1948 - 1952, Руководство по обслуживанию

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2 - 14 ENGINE TUNE-UP
the distributor quadrant attaching screw and operate the
engine at idle speed with the timing light aimed at the
flywheel opening in the rear engine support plate.
3. With the engine idling properly, the light (spark) should
occur when the dead center mark (chalked long line) on
the flywheel is in line with the pointer at the opening of
the rear engine support plate.
4. Tighten the quadrant screw and accelerate the engine.
Chalk mark should move to the left of pointer as centrif-
ugal governor advances the spark. If timing is off, make
the necessary corrections by first loosening the distribu-
tor (advance arm) quadrant and rotate the distributor
clockwise to retard and counter-clockwise for advance.
5. Increase engine speed.
NOTE: The vacuum advance should be at full retard
position, mechanical advance should advance readily
when the engine speed is increased. Disconnect vacuum
advance tube at distributor.
6. Ignition timing (spark setting) may be advance during
continuous high altitude operation or with fuels of high
octane rating of 80 or higher.
To set the timing without a timing light, remove No.
1 spark plug and crank engine until No. 1 piston starts
up on compression stroke. Continue cranking until long
line on flywheel lines up with pointer. Loosen distributor
quadrant screw and rotate distributor clockwise to the
limit of the slot in the quadrant. Remove secondary wire
from center of distributor cap and hold bare end of wire
about 1/8" from the cylinder head. With ignition switch
on, slowly rotate the distributor counter-clockwise just
until a spark jumps from the wire to the cylinder head;
then tighten quadrant screw.
Correct ignition timing is indicated by a slight" ping"
at about 15 MPH when accelerating at full throttle from
10 MPH in high gear. If no ping is heard, timing should
be advanced one quadrant graduation mark at a time
until the ping is heard. Under no circumstances should
the pointer at the flywheel opening be more than one
inch (first short mark) before the UDC mark when the
spark occurs, Figure 20.
If too much ping occurs or if the engine pings at higher
speeds, timing should be retarded by rotating the distributor
clockwise one graduation at a time.
FAN BELT ADJUSTMENT:
Adjustment of the fan belt is possible by moving the gener-
ator towards the engine or away on the generator adjusting
bracket.
FIGURE 21
1. Loosen the two generator bolt nuts (D) and (E) and adjusting
arm bolt (F), Figure 21.
2. Swing the generator away from the engine until the slack in
the fan belt is such that the section between the water pump
pulley and the generator pulley can be pushed down 3/4"
below a straight edge laid across the pulleys as shown at (C),
Figure 21.
3. Tighten generator attaching bolt nuts (D) and (E) after
making the adjustment.
NOTE: The fan belt is properly adjusted when the generator
pulley can be just turned by hand. Do Not try to turn the
generator pulley with the fan belt.
GENERATOR OUTPUT CHECK:
1. Disconnect battery lead at voltage regulator "B" terminal;
connect the ammeter negative lead to the regulator "B"
terminal and the positive lead to the wire disconnected from
the regulator, Figure 22.
2. Install a jumper from generator field terminal to a ground.
3. Momentarily raise the engine speed to approximately 1250
RPM, the reading on the ammeter should read 50 amperes
minimum output.