TM 5-3825-213-35
13. Plow or Carrier Engine Uses Oil
18. Plow or Carrier Engine Will Not Idle
Excessively
Smoothly
Probable cause
Possible remedy
Probable cause
Possible remedy
Leaks in seals or gaskets .......... Replace all leaking seals
Carburetor defective ................. Repair carburetor (pars.
or gaskets.
Rings worn or broken ...............Replace rings (pars.
Piston rings worn or piston........ Replace rings and/or
scored.
pistons (pars. , 247-249).
Valve guides worn ....................Replace worn valve guides
Valves burned, warped, ............ Replace valves (pars.
or sticking.
Defective distributor ................. Repair distributor (pars.
14. Plow or Carrier Engine Oil Pressure Low
19. Plow or Carrier Engine Blows Cylinder-
Probable cause
Possible remedy
Engine Oil pump defective ........ Repair or replace engine oil
Head Gasket Repeatedly
Excessive main bearing ............ Replace bearing (pars.
Probable cause
Possible remedy
clearance.
Warped or cracked ................... Replace or repair cylinder
Engine oil pump strainer ........... Remove and clean oil
clogged.
pump
Warped or cracked ................... Replace or repair cylinder
Excessive camshaft bear- ......... Replace camshaft
ing clearance.
bearings
20. Plow Fan Vibrates
Probable cause
Possible remedy
15. Plow or Carrier Engine Knocks
Bent or broken blade................. Replace fan blade (TM
and Pings
5-3825-213-20).
Gearcase bearings.................... Replace bearings (pars.
Probable cause
Possible remedy
damaged.
Connecting rod bearings ........... Replace connecting rod
Engine out of time .................... Time plow engine (TM
loose.
5-3825-213-20).
Valve spring broken or .............. Replace valve springs
cracked.
21. Plow Assembly Will Not Raise or Lower
Connecting rod bent .................Replace connecting rod
Probable cause
Possible remedy
Piston pin too tight or ................ Replace piston pin (pars.
Defective hydraulic pump.......... Repair hydraulic pump
too loose.
Worn pistons ...........................Replace pistons (pars.
Defective hydraulic.................... Repair hydraulic cylinder
cylinder.
16. Plow or Carrier Engine Compression Low
22. Plow Discharge Chute Will Not Rotate
Probable cause
Possible remedy
Probable cause
Possible remedy
Valve lash tight ........................Adust valves (TM
Defective hydraulic motor.......... Repair hydraulic motor
5-3925-213-20).
Piston rings broken or ............... Replace piston rings (pars.
Defective hydraulic lines ........... Replace defective
stuck.
and fittings
hydraulic
Worn pistons and rings ............Replace pistons and rings
lines and fittings (TM
5-3825-213-20).
Cylinder head or gasket ............ Repair or replace cylinder
Defective hydraulic pump.......... Repair hydraulic pump
leaks.
head and replace gasket
23. Plow Discharge Chute Will Not Raise
17. Plow or Carrier Engine Stops Suddenly
or Lower
Probable cause
Possible remedy
Probable cause
Possible remedy
Defective distributor .................Repair distributor (pars.
Defective hydraulic pump ......... Repair hydraulic pump
Engine crankshaft or ................. Replaced seized
Defective hydraulic.................... Repair hydraulic cylinder
crankshaft
cylinder.
seized.
or seized connecting rod
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