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LUBRICATION
ENGINE PERFORMANCE EVALUATION
Engine operating efficiency depends on correct
ignition, carburetor adjustments, and on valve lash
where applicable. To obtain best engine performance,
Chrysler Corporation recommends that the engine be
evaluated every 10,000 miles and tuned, if necessary.
Services performed during this evaluation should in-
clude the following:
1-Spark
Plugs-Remove
and inspect each spark
plug. Most plugs can be cleaned, adjusted, and rein-
stalled. Rough idle, hard starting, frequent engine
miss at high speeds, or apparent physical deteriora-
tion, are indications that the spark plugs should be
replaced.
2-Distributor-Clean
and inspect the distributor
cap and rotor if required (wash cap in household deter-
gent and water solution). Check breaker contacts for
abnormal pitting, bluing, or misalignment, and adjust.
Lubricate cam and wick, (see page 16). Be sure that all
distributor secondary wires and tower caps are clean
and connected properly. See "Electrical Group" for
ignition timing procedures and settings.
3-Carburetor-Remove
and clean air filter. Check
operation of manifold heat control valve and choke
diaphragms; use solvent recommended. Clean crank-
case ventilation system, (see page 13). See Fuel System
Group for carburetor adjustment procedures.
&Battery-Check
specific gravity. Clean and tight-
en terminals; apply grease to post and terminals.
Check circuit voltages as directed in the Electrical
Group.
5-Starter-Test
cranking ability as described in
"Electrical Group."
&Valve
Lash (where applicable)-Should an en-
gine continue to be noisy and the idle rough after a
tune-up, adjust valve lash to specifications. Refer to
the Engine Group for lash values and instructions.
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