Subaru XT 1988 Service Manual page 208

2-3
ENGINE
Type of sound
Condition
Possible cause
Gear scream when
•
Defective ignition starter
starting engine. switch.
•
Worn ring gear and starter
pinion.
Sound like polishing
•
Loose drive belt.
glass with a dry cloth.
•
Defective water pump shaft.
Hissing sound.
•
Loss of compression.
•
Air leakage in air intake sys-
tem, hoses, connections or
manifolds.
Timing belt noise.
•
Loose timing belt.
•
Belt contacting case/adjacent
part.
Distributor gear noise.
•
Worn gear.
52