Plymouth Valiant V-100 1965 Service – Technical Manual page 315

GROUP 11
EXHAUST SYSTEM
CONTENTS
Page Page
DESCRIPTION
.........................
1 SERVICE PROCEDURES
. . . . . . . . . . . . . . . . . .
2
SERVICE DIAGNOSIS
. . . . . . . . . . . . . . . . . . .
1 TIGHTENING REFERENCE
. .
(At Rear of Manual)
SERVICE DIAGNOSIS
Condition
Possible
Cause Correction
EXHAUST SYSTEM
EXCESSIVE EXHAUST
NOISE
LEAKING EXHAUST
GASES
ENGINE
HARD TO
WARM UP OR WILL
NOT RETURN
TO
NORMAL IDLE
NOISE
IN
MANIFOLD
MANIFOLD HEAT
CONTROL VALVE
RAllLE
Leaks at the pipe joints.
Burned or blown out muffler.
Burned or rusted out exhaust pipe.
Exhaust pipe leaking at manifold flange.
(a) Tighten clamps at leaking joints.
(b) Replace muffler assembly.
(c) Replace exhaust pipe.
(d) On 273 cu. in. engines, tighten
ball
joint con-
nection attaching bolt nuts to
35
foot-pounds.
On all other engines, install a new gasket and
tighten flange bolt nuts to 35 foot-pounds.
(e) Replace manifold.
(f) Tighten manifold to cylinder head stud nuts
to 10 foot-pounds on 6-cylinder engines; 15
foot-pounds on 273 cu. in. engines and
30
foot-
pounds on all other V-8 engines.
Exhaust manifold cracked or broken.
Leak between manifold and cylinder head.
Leaks at pipe joints.
(a) Tighten clamps at leaking joints to
100
inch-
pounds.
(b) Damaged or improperly installed gaskets.
(c) Restriction in muffler or tail pipe.
(b) Replace gaskets as necessary.
(c) Remove restriction,
if
possible, or replace
as
necessary.
(a) Heat control valve frozen in the open position.
(a) Free up manifold heat control valve using
Sol-
vent, Part No. 187931 8.
(a) Thermostat broken.
(b) Weak, broken or missing anti-rattle spring.
(a) Replace thermostat.
(b)
Replace spring.
(a) Thermostat broken.
(b) Broken, weak or missing anti-rattle spring.
(a) Replace thermostat.
(b) Replace spring.
Description
Aluminized mufflers and tail pipes are used on all
models provided with a single line exhaust system.
Stainless steel mufllers are used in dual exhaust sys-
tems. The exhaust systems on AV-1, AV-2, AR-1 and
AR-2 models are suspended by "C" type hangers and
supports (Figs. 1, 2, 3 and
4).
Double strap hangers
are used to support the mufflers on AP-1 and AP-2
models (Figs. 5,6 and 7).
Ball joint seating connections at the exhaust mani-
folds which facilitate alignment of the exhaust sys-
tem, are used on 273 cubic inch V-8 engines.
The exhaust manifolds on all engines incorporate a
thermostatic heat control valve to direct the exhaust
gases to a heat chamber beneath the carburetor
mounting flange to help vaporize the fuel.
On six-cylinder engines, the heat control valve is
located in the manifold on the left side of the engine.
On eight cylinder engines, the heat control valve is
located in the manifold on the right side of the en-
gine.