Section X-Exhaust System; Disassembly And Assembly Of Manifold Heat Control; Replacement Of Exhaust Pipe And Muffler; Replacement Of Intake And Exhaust Manifold Gaskets - Plymouth Pl4S Service Manual

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Section X
EXHAUST SYSTEM
l. DISASSEMBLY AND ASSEMBLY OF
MANIFOLD HEAT CONTROL.
1940-42-Check occasionally to insure
valve is free and not restricted in its opera-
tion. To disassemble (fig. 1) remove shield
( 3) and thermostat ( 6). When assembling,
place center end of the thermostat in mani-
fold heat control shaft groove and tum the
thermostat one complete turn counterclock-
wise before hooking other end of the ther-
mostat on stop. Never turn thermostat more
than one turn when installing.
1936-39-Check occasionally to insure
valve is free and not restricted in its opera-
tion. To disassemble (fig.
2)
remove coun-
terweight ( 3 ) and thermostat ( 2 ) . When
assembling, place center of thermostat in
manifold heat control shaft groove and turn
the thermostat 1/3 turn counterclockwise
before hooking the other end of the ther-
mostat on the stop. Never turn thermostat
more than 1/3 turn when installing.
2. REPLACEMENT OF EXHAUST PIPE
AND MUFFLER.
1936-42-Whenever any part of the ex-
haust system has been replaced, leave the
attaching bolts and clamps loose, run the
engine to allow all the parts of the system to
align themselves, then tighten all bolts and
clamps securely.
3. REPLACEMENT OF INTAKE AND
EXHAUST MANIFOLD GASKETS.
1936-42-Before assembling the intake
and exhaust manifolds, remove all residue
from inside manifolds. When assembling,
tighten the intake (l.nd exhaust manifold con-
necting bolts until they are snug but not
tight. Install assembly on engine and tighten
manifolds to cylinder block evenly to 15 to
20 foot pounds, so that both intake and ex-
haust manifold flanges seat themselves
evenly on the cylinder block. Then tighten
1-Valve slop stud
2-Valve shalt
3-Thermostat shield or
6---Valve thermostat
7-Valve thermostat
spacer
cover 8-Thermoslal shield
4-Valve stop damp bolt, nul, plain
5-Thermostat shield washer and
clamp lock lockwashor
Figure !-Manifold Heat Control (1940-42 Models)
1-Manilold drain tube elbow 2-Thermostat
3-Manilold heat control valve counterweight
Figure 2-Manifo/d Heal Cantro/(1936-39 Models)
intake and exhaust manifold connecting
bolts securely.