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Page Title:
TABLE 4. TROUBLESHOOTING GUIDE - continued |
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 TABLE 4. TROUBLESHOOTING GUIDE (Continued)
REMEDY
PROBABLE CAUSE
TROUBLE
1. ENGINE (Continued)
Fuel pump defective, causing lack
Clean screen, replace defective pump.
Engine misses at high
of fuel
speeds (continued)
Clean complete air cleaner and
Air cleaner dirty
refill oil cup.
Heat control valve defective
Free-up and adjust.
Report to designated authority.
Valves sticking, weak or
broken valve springs
Remove and clean strainer.
Fuel strainer clogged
Replace point set.
Weak distributor bracket arm
spring
Replace distributor.
Excessive play in distributor
shaft bearing
Clean, adjust or replace spark plugs.
Spark plugs defective, dirty
or gap incorrectly set
Reset timing.
Ignition timing early
Engine pings (Spark
Knock)
Replace distributor.
Distributor automatic spark
advance stuck in advance
position, or spring broken
Remove cylinder head and clean.
Excessive carbon deposit in
cylinders
Drain, use correct fuel.
Incorrect fuel
Reset timing.
Ignition timing late
Engine lacks power
Use correct fuel.
Incorrect fuel
Replace gasket.
Leaky cylinder head gasket
Remove cylinder head, and clean
Excessive carbon formation
cylinder head, piston heads, cylinder
block, and valves.
Test thermostat; in cold weather,
Engine runs cold
cover radiator.
4-72
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