1948-1952 Shop Service Manual - - Hudson-Essex-Terraplane Club

4 - 30 FUEL SYSTEM & EXHAUST
6. Connect the moulded hose provided in the k i t to the Ranco
valve and heater inlet pipe. Install the straight length of hose
provided in the, kit to the Ranco valve and cylinder head 45°
nipple, routing the hose outside of the rear carburetor. ReInstall
the heater outlet pipe and hose from the heater core to
water pump.
NOTE: It may be found necessary to increase the bend at the
hose connection of the pipe to allow the hose to clear the
throttle rod and return spring.
7. It is necessary on early 5B cars having the wiper motor
mounted to the right of center location, to re-locate the
windshield wiper motor to the left of center to allow clearance
for the rear air cleaner. This is accomplished by fabrication
of a mounting bracket as shown in Figure 102. It is also
necessary to provide new right and left windshield wiper
pulley housing and cable assemblies, Part Nos. 233500 and
233501, when this change is made.
FIGURE 102
8. Install accelerator pedal link bellcrank assembly (28), Figure
101, to bellcrank shaft on engine block and hook up throttle
shaft operating rod assembly (29) from bellcrank to throttle
shaft assembly (24).
9. Follow adjustment procedure as outlined under Linkage
and Carburetor Adjustments.
10. Install air cleaners to front and rear carburetors and bolt to
cleaner braces.
CARBURETOR AND LINKAGE
ADJUSTMENTS
1. Install linkage adjusting pin J-2544-1 through pedal link
bellcrank lever and into hole in cylinder block provided
for adjustment purposes. On 5B Installations, adjust
throttle shaft rod trunnion to show a dimension of
1-25/32" from top face of bracket to center of clevis
pin hole in cross shaft lever.
2. Connect tachometer to distributor but before warming
up engine, remove the clevis pins from the yokes
at the ends of both throttle shaft t o carburetor rods.
While holding the front carburetor fast idle cam in
the "off" position, turn the throttle stop screw until it
just touches the cam. Repeat with rear carburetor.
3. Turn the idle mixture adjustment screws down until
they are seated lightly and then back them out 1-1/4
turns on 5B Models and 2 turns on 6B and 7B
Models. Warm up the engine and bring the engine
idle to 500 R.P.M. for Hydra-Matic transmissions,
550 R.P.M. for standard transmissions and 575
R.P.M. for overdrive transmissions, by turning the
two throttle stop screws in or out equal amounts.
Adjust the idle mixture adjustment screw on each
carburetor t o get the maximum increase in idling
speed and, if necessary, readjust the throttle stop
screws to cut the idling speed down to the recommended
R.P.M. When adjusting the idle speed, always
turn each throttle stop screw an equal amount.
4. Adjust front and rear throttle shaft to carburetor rod
clevises so that clevis pins pass freely through clevis
and cross shaft levers. Install clevis pins and clevis
cotter pins.
5. On cars equipped with Hydra-Matic transmissions,
adjust throttle rod by disconnecting transmission
throttle rod trunnion from accelerator pedal link
bellcrank. Push rearward on transmission throttle
rod to hold transmission T.V. lever against stop in
transmission and adjust throttle rod trunnion so pin
of trunnion slips freely into bellcrank. The throttle
rod should then be shortened by 1/16" or 1-3/4 turns
clockwise of the top trunnion jam nut. Lock this
adjustment by tightening the lower jam nut against
the trunnion.
6. Remove the linkage adjusting pin J-2544-1.
7. Adjust the length of the accelerator pedal to bellcrank
rod to get 1/64" to 1/16" clearance between the
pedal and the pedal stop at wide open throttle. On
5B Models which do not have a pedal stop, adjust
pedal rod to allow 1/4" clearance between pedal and
floor mat at wide open throttle.