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ENGINE: TROUBLES AND CORRECTIONS
Engine Has No Power.
15
POSSIBLE
CAUSES
1) Inconect ignition timing.
2) Weak coil or condens.r.
3) Reduced accelerator pedal t,avel.
•) Distributor rotor contaet worn.
5) Defective centrifugal or vacuum advance (dis.
tributor).
6) Excessive play in distributor shaH.
7) Weak spring In breaker contact point.
8) Distributor cam worn.
9) Insufficient distributor point dwell.
10) Spark plugs dirty, damp or gap set too wide.
11) Low grade fuel.
12) Weak valve springs.
13) Valves sticking when hot, burned or twisted.
14) Incorrect valve tappet clearance.
15) Worn camshaft lobes.
16) Valve timing
inCOfrect.
11) Poor compression.
18) Defective fuel pump.
19) Too rich or lean fuel mixture.
29) Incorrect fuel level In carburetor bowl.
21) Engine overheating.
REMEDIES
1) Inspect and se1 Ignition timing as recommended under
«Ignition Timing ».
2) Bench test coli and condenser as recommended under
«Ignition Coil» and «Ignition Distributor
».
Replace both
pans, if necessary.
3) Locate failure and correct
It.
4) Replace distributor rotor.
5) Rebuild
ignition distributor and
vacuum advance, as
recommended in covering chapters.
6) Rebuild distributor and replace damaged pans.
7) Replace distributor breaker arm, spring and point assembly.
8) Overhaul distributor and replace cam body.
9) Adjust point dwell angle as recommended under u Ignition
Distributor
».
10) Clean spark plugs and set gap as recommended under
«Spark Plugs
II.
11) Use fuel with recommended octane number.
12) Take down cylinder head and check spring pressure by
comparing figures with those tabulated under «Valve
Springs
».
13) Overhaul valves and valve guides as recommended under
«Cylinder Head
»;
replace as required.
14) Adjust tappet clearance as recommended on page 67.
15) Check valve timing and compare data with those in valve
timing diagram, as shown under
II
Valve Mechanism
»;
replace camshaft, if necessary.
16) Time valves as recommended In covering chapter.
17) Check compression (106.7 to 113.1 psi. 1.5 to
I
kg/cm
l
,
Standard Version; 120.9 to 135.1 psi. 1.5 to 9.5 kg/cm
l
,
Super Version) using a pressure gauge; If pressure Is too
low, locate failure and rebuild engine.
18) Rebuild fuel pump and replace worn pans.
19) Check calibration of carburetor jets as outlined In cover·
Ing chapter; proceed as required.
20) Check fuel level In bowl and adjust as recommended
under «Carburetor ••
21) Check water level In expansion tank, fan and water pump
drive belt tension, water pump and thermostat operation
and overhaul . . required.
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