Subaru 1600 Service Manual page 115

ENGINE
Trouble and possible cause Corrective action
4. Others I) Malfunction of EGR system.
Inspect, repair or replace.
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..
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2)
Over cooling or overheating
See "Troubleshooting of engine cool·
ing system" on page 3-83.
3) Excessive carbon deposit in comb us-
Clean.
tion chamber.
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4) Slipping of clutch
Inspect, adjust or replace.
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5) Dragging of brake
Inspect and adjust.
4. Engine speed
1) Defective throttle linkage or accelera·
. Inspect, adjust and repair.
does not reo tor cable
turn to normal
'~-.'
. - .
idle speed.
2)
Malfunction of choke system Adjust, repair pr replace.
3) Malfunction of ignition control
system
•
Malfunction orvacuum controller
Repair or replace.
or centrifugal advancer in distributor
• Clogged vacuum lines
Inspect, repair or replace.
•
Malfunction of operating parts
Replace.
(Thermo vacuum valve I, check
valve, etc.)
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r--
5. Dieseling I) Improper ignition timing Adjust.
2) Improper idle speed Adjust.
3) Malfunction of antidieseling switch Repair or replace.
(Hitachi carburetor) or idle stop
solenoid (C·W carburetor) or defec·
tive wire connection
4) Malfunction of choke system Adjust, repair or replace.
6. Explosive after· 1) Improper ignition timing
Adjust.
burning in ex·
haust system
2)
Improper idle speed
Adjust.
3) Improper valve clearance Adjust.
4) Malfunction of choke system Adjust, repair or replace.
S) Malfunction of EGR system
Inspect, repair or replace.
6) Malfunction of AA V system Replace.
7. Excessive en· 1. Oil leakage
1) Loose oil drain plug or defective
Tighten or replace.
gine oil con· gasket.
sumption
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