Observable Diagnostics and Tests
04
150
18
DPSG,RG40854,281
–19–27NOV00–2/2
•
Engine overheating.
•
Power loss.
•
Engine runs rough.
•
White exhaust smoke.
•
Loss of cab heat.
•
Gasket section dislodged, missing (blown).
•
Coolant in cylinder.
•
Coolant in crankcase oil.
•
Low coolant level.
Possible Causes:
•
Insufficient liner standout.
•
Excessive liner standout differential between
cylinders.
•
Low head bolt clamping loads.
•
Rough/damaged liner flange surface.
•
Cracked/deformed gasket combustion flange.
•
Out-of-flat/damaged/rough cylinder head surface.
•
Missing/mislocated gasket firing ring.
•
Block cracked in liner support area.
•
Excessive fuel delivery.
•
Hydraulic or mechanical disturbance or combustion
seal.
NOTE: Cracked cylinder head or liners may also allow
combustion gas leakage into coolant.
If above symptoms are found, see HEAD GASKET
INSPECTION AND REPAIR SEQUENCE in Section
02, Group 020.
COOLANT SEAL LEAKAGE
Symptoms:
•
Coolant discharge from head gasket crevice.
•
Coolant in crankcase oil.
•
Low coolant level.
•
High oil level.
•
Coolant discharge form crankcase vent.
Possible Causes:
•
Excessive liner standout.
•
Excessive liner standout differential between
cylinders.
•
Low head bolt clamping loads.
•
Out-of-flat/damaged/rough block surface.
•
Out-of-flat/damaged/rough cylinder head surface.
•
Oil or coolant overheating.
•
Cracks/creases in gasket body surfaces.
•
Damage/voids in elastomer beading.
If above symptoms are found, see HEAD GASKET
INSPECTION AND REPAIR SEQUENCE in Section
02, Group 020.
OIL SEAL LEAKAGE
Symptoms:
•
Oil discharge from head gasket crevice.
•
Oil in coolant.
•
Low crankcase oil level.
•
Reduced oil to rocker arms (noisy).
Possible Causes:
•
Excessive liner standout
•
Excessive liner standout differential between
cylinders.
•
Low head bolt clamping loads
•
Out-of-flat/damaged/rough block surface.
•
Out-of-flat/damaged/rough cylinder head surface.
•
Oil or coolant overheating.
•
Cracks/creases in gasket body surfaces.
•
Damage/voids in elastomer beading.
•
Damaged/missing O-ring seal at oil port to rocker
arms.
If above symptoms are found, see HEAD GASKET
INSPECTION AND REPAIR SEQUENCE in Section
02, Group 020.
NOTE: Defective oil cooler may also allow oil leakage
into coolant.
CTM100 (06APR04)
04-150-18
P
OWER
T
ECH
10.5 L & 12.5 L Diesel Engines
040604
PN=366
Summary of Contents for 6105ADW
Page 16: ...Contents 01 CTM100 06APR04 01 2 POWERTECH 10 5 L 12 5 L Diesel Engines 040604 PN 2 ...
Page 50: ...Contents 02 CTM100 06APR04 02 4 POWERTECH 10 5 L 12 5 L Diesel Engines 040604 PN 4 ...
Page 334: ...Contents 03 CTM100 06APR04 03 2 POWERTECH 10 5 L 12 5 L Diesel Engines 040604 PN 2 ...
Page 350: ...Contents 04 CTM100 06APR04 04 2 POWERTECH 10 5 L 12 5 L Diesel Engines 040604 PN 2 ...
Page 376: ...Contents 05 CTM100 06APR04 05 2 POWERTECH 10 5 L 12 5 L Diesel Engines 040604 PN 2 ...
Page 412: ...Contents 06 CTM100 06APR04 06 2 POWERTECH 10 5 L 12 5 L Diesel Engines 040604 PN 2 ...