Chrysler Windsor C-71 1956 - Page 172

34—ENGINE
CHRYSLER SERVICE MANUAL
i. Blown head gasket.
j. Air leak at carburetor mounting gasket.
k. Worn lobes on the camshaft.
1. Moisture on ignition wires, cap, or plugs.
m. Worn timing chain.
n. Defective spark advance mechanism.
©. Sticking valves.
p. Excessive play in distributor shaft.
q. Distributor cam worn.
r. Inoperative choke.
s. Spark plugs damp, dirty, or the gaps set
too close.
t. Overheated engine.
u. Weak battery.
v. Uneven compression.
w. Low grade of fuel. (Winter fuel used in
summer.)
x. Flooding carburetor.
y. Carburetor icing (cold, damp weather).
45. ENGINE MISSES WHILE IDLING
Possible Causes:
a. Spark plugs dirty, damp, or gap incor-
rectly set.
b. Broken or loose ignition wires.
c. Burned or pitted contact points, or points
set with insufficient gap.
d. Coil or condenser defective.
e. Weak battery.
*- Distributor cap cracked.
g. Trailing edge of rotor worn.
h. Moisture on ignition wires, cap, or plugs.
i. Excessive play in distributor shaft.
j. Distributor sha,f t cam worn.
k. Burned, warped, or pitted valves.
1. Incorrect valve tappet clearance. (C-300.)
m. Incorrect carburetor idle adjustment.
n. Improper carburetor float level.
o. Low compression.
46. ENGINE MISSES AT HIGH SPEED
Possible Causes:
a. Dirt or water in gas line or carburetor.
b. Dirty jets in carburetor, especially the
economizer jet.
c. Weak coil or condenser.
d. Incorrect ignition timing.
e. Distributor points dirty or incorrectly
spaced.
f. Trailing edge of rotor worn.
g. Loose ignition wiring.
h. Excessive play in distributor shaft.
i. Spark plugs fouled, damp, or dirty, or the
gaps set too wide.
j. Insufficient point dwell.
k. Insufficient spring tension on points.
1. Normal hydraulic tappet pump up.
m. Worn camshaft lobes.
n. Weak valve springs.
0. Abnormal resistance in spark plugs.
p. Distributor cam lobe worn.
q. Engine overheating.
r. Low grade fuel.
s. Badly worn diaphragm in fuel pump.
t. Detonation or pre-ignition.
u. Frozen heat control valve.
47. EXTERNAL OIL LEAKAGE
Possible Causes:
a. Outside oil lines.
b. Timing chain case cover oil seal.
c. Rear main bearing oil seal.
d. Oil pan gaskets.
e. Oil pan drain plug.
f. Oil filter gasket.
g. Clogged rear camshaft bearing drain hole.
h. Tappet cover gaskets.
1. Fuel pump gasket.
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