Probable cause
Possible remedy
22. Carrier Engine Cranks But Does Not Start
Loose pistons or
Replace pistons or wrist pins
wrist pins.
Probable cause
Possible remedy
Broken piston rings ..................... Replace piston rings
Defective carburetor .................... Repair carburetor (pars.
.....................................................
Broken valve springs ................... Replace valve springs
23. Carrier Engine Overheating
.....................................................
Defective camshaft
Replace camshaft bearings
Probable cause
Possible remedy
Defective radiator .....................Replace radiator
Worn timing gears ....................... Replace timing gears (pars.
Defective water pump ...............Repair water pump
Loose engine
Tighten or replace mounting
mounting bolts.
... bolts (par. 45).
24. Carrier Engine Stalls Frequently
16. Crane Engine Oil Consumption High
Probable cause
Possible remedy
Probable cause
Possible remedy
Defective carburetor .................Repair carburetor
Worn, broken, or stuck
Replace piston rings (pars.
piston rings.
... 103-105).
Defective distributor ..................Repair distributor
Worn pistons ................................ Replace pistons (pars.
.....................................................
Defective valves .......................Replace or repair valves
Worn valve guides ....................... Replace valve guides (pars.
25. Carrier Engine Oil Pressure Low
17. Crane Engine Clutch Noisy
Probable cause
Possible remedy
Probable cause
Possible remedy
Defective oil pump ....................Replace or repair oil pump
Defective clutch shaft
Replace clutch bearings
bearing.
26. Carrier Engine Knocks and Other Noises
Broken lever pins or
Replace levers or pins
Probable cause
Possible remedy
levers.
Defective crankshaft
Replace crankshaft main
Broken collar or yoke ................... Replace collar or yoke
main bearings.
Defective connecting rod
Replace connecting rod bear-
18. Crane Engine Clutch Slips
bearings.
Probable cause
Possible remedy
Loose pistons or wrist
Replace pistons or wrist pins
Worn lining segments or
pins.
plates.
Broken piston rings ..................... Replace piston rings
19. Crane Engine Clutch Drags
Probable cause
Possible remedy
Broken valve springs ................Replace valve springs
Warped clutch plates .................. Replace clutch plates
Defective camshaft
Replace camshaft bearings
Worn or broken levers
Replace levers and pins
bearings.
or pins.
Worn timing gears ....................Replace timing gears
20. -Carrier Engine Lacks Power
.................................................
Probable cause ........................ Possible remedy
Loose engine mounting
Tighten or replace mounting
Defective carburetor ................ Repair carburetor
bolts.
bolts (par. 46).
27. Carrier Engine Oil Consumption High
Burnt or faulty valves ............... Replace or repair valves
Probable cause
Possible remedy
Worn, broken, or stuck
Replace, piston rings
Defective piston rings .............. Replace piston rings
piston rings.
Worn pistons ............................Replace pistons
Blown head gasket ................. Replace head gasket
Worn valve guides ...................Replace valve guides
21. Carrier Engine Starting Motor Will Not Crank
Engine
28. Carrier Engine Clutch Noisy
Probable cause
Possible remedy
Probable cause
Possible remedy
Defective starting motor ............... Repair starting motor
Defective clutch shaft
Replace clutch bearing
bearing.
Internal engine seizure ............... Replace the engine
Defective throwout
Replace throwout bearings
bearing.
TAGO 5030A
26
