Plymouth Valiant V-100 1965 Service – Technical Manual page 261

9-4 ENGINLDIAGNOSIS
Condition Possible Cause Correction
ENGINE
STALLS
(9) Dirty or corroded distributor contact points.
(h) Incorrect spark plug gap.
(i)
Incorrect ignition timing.
( 1 )
Dirt or water in fuel line or carburetor.
(k)
Carburetor flooded.
(I)
Incorrect carburetor float setting.
(m) Faulty fuel pump.
(n) Carburetor percolating. No fuel in the
carburetor.
(a) Idle speed set too low.
(b)
Incorrect choke adiustment.
(c) Idle mixture too clean or too rich.
(d)
Incorrect carburetor float setting.
(e) Leak in intake manifold.
(f)
Dirty, burned or incorrectly gapped distributor
(9) Worn or burned distributor rotor.
(h)
Incorrect ignition wiring.
(i)
Faulty coil or condenser.
contact points.
ENGINE
LOSS
OF
POWER
(a) Incorrect ignition timing.
(b)
Worn or burned distributor rotor.
(c) Wrong mechanical or vacuum advance
(d)
Excessive play in distributor
shaft.
(e) Worn distributor
shaft
cam.
(f)
Dirty or incorrectly gapped
spark
plugs.
(9) Dirt or water in fuel line, carburetor or filter.
(h)
Incorrect carburetor float setting.
(i) Faulty fuel pump.
(j)
Incorrect valve timing.
(k)
Blown cylinder head gasket.
(I)
Low compression.
(m) Burned, warped, or pitted valves.
(n) Plugged or restricted exhaust system.
( 0 )
Faulty ignition cables.
(p) Faulty coil or condenser.
(a) Dirty, burned, or incorrectly gapped distributor
(b) Dirty, or gap too wide in spark plugs.
(c) Incorrect ignition timing.
(d)
Dirt in carburetor.
(e) Acceleration pump in carburetor.
(f)
Burned, warped or pitted valves.
(9) Faulty coil or condenser.
(distributor).
ENGINE
MISSES
ON
ACCELERATION contact points.
ENGINE MISSES AT
HIGH SPEED points.
(a) Dirty or incorrectly gapped distributor contwt
(b)
Dirty or gap set too wide in
spark
plug.
(c) Worn distributor shaft cam.
(d)
Worn or burned distributor rotor.
(9) Clean or replace a s necessary.
(h) Set gap at
.035."
(i)
Refer to "Ignition Timing."*
(j)
Clean lines and carburetor.**
(k)
Adjust float level-check seats.**
(I)
Adjust float level-check seats.**
(m) Install new fuel pump.**
(n) Measure float level.** Adjust bowl vent. Inspect
operation of manifold control valve.
(a) Adjust carburetor.**
(b) Adjust choke.**
(c) Adjust carburetor.**
(d)
Adjust float setting.**
(e) Inspect intake manifold gasket and replace
if
(f)
Replace points and adjust.*
necessary.*
**
(9) Install new rotor.
(h) Install correct wiring.
(i)
Test and replace
if
necessary.*
(a) Refer to "Ignition Timing."*
(b)
Install new rotor.
(c) Install correct vacuum advance unit. Adjust
(d) Remove and repair distributor.*
(e) Remove and repair distributor.*
(f)
Clean plugs and set gap at
.035".
(9) Clean lines, carburetor and replace filter.**
(h)
Adjust float level.**
(i) Install new pump.
(i) Refer to "Checking Valve Timing."***
(k)
Install new head gasket.***
(I)
Test compression of each cylinder.***
(m) Install new valves.***
(n) Install new parts as necessary.
( 0 )
Replace any cracked or shorted cables.
(p) Test and replace as necessary.*
(a) Replace points and adjust.*
mechanical advance.
(b)
Clean spark plugs and set gap at
.035".
(c) Refer to "Ignition Timing."*
(d)
Clean carburetor.**
(e) Install new pump.**
(f)
Install new valves.***
(9) Test and replace
if
necessary.*
(a)
Clean or replace as necessary.*
(b)
Clean spark plugs and set gap at
.035".
(c) Remove and repair distributor.*
(d) Install new rotor.