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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)
Change oil, inspect crankcase
Improper grade of oil, or
Low oil pressure
ventilator, inspect for water in oil.
diluted oil foaming at high speeds
(Continued)
Change to proper grade oil. (Refer
Oil too heavy (funneling in
to Lubrication Instructions.)
cold weather)
Remove oil pan and clean pump
Oil pump screen clogged
screen.
Report to designated
Oil leaks
authority.
Report to designated authority.
Faulty oil pump, pressure
regulator valve stuck or im-
properly adjusted, or spring
broken
Adjust tappets.
Incorrect tappet adjustment
Defective valves
Report to designated
Other valve troubles
authority.
Tighten or correct conditions as
Loose fan, fan pulley or belt,
Abnormal engine noises
required.
heat control valve
Tighten loose components or replace
Leaking intake or exhaust
defective gaskets.
manifold or gaskets, cylinder
head gasket, or spark plugs
Remove obstruction from exhaust
Overheated engine, clogged
system. Inspect for further service-
exhaust system
ability.
Report to designated individual
Other abnormal engine noises
in authority.
Adjust tappets.
Incorrect tappet adjustment
Poor compression
Report to designated authority.
Leaking, sticking, or burned
valves; sticking tappets; valve
spring weak or broken; valve
stems and guides worn; piston
ring grooves worn or rings worn,
broken, or stuck; cylinder
bores scored or worn
4-76
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