| Fan drive belts |
Damage, deterioration, excessive wear, glazing, or looseness |
Replace if unserviceable. Tighten if loose. |
|
|
| Pressure cap |
Plugged vacuum vent, damaged seating surfaces, gasket, or locking rims |
Replace cap if unserviceable |
System Capacity |
25 Quarts |
|
(*NOTE*) Normal wear on locking rims won't affect sealing of the cap, but a bent rim can affect pressure.
Vacuum valve spring; pull out on valve head with fingertips to check tension.
|
Should pull out without binding about 1/8 inch and reseat by spring action; replace cap if faulty.
|
Pressure (Cap Setting) |
13 psi (PN: 5101957) |
| Water Pump |
Damage, leakage, and mounting bolts |
Replace if unserviceable. Tighten loose mounting bolts. |
Thermostat |
|
| Water pump gasket |
Evidence of leaks |
Replace |
Operating Temperature |
177 - 184 Degrees |
| Pulleys |
Excessive wear and damage |
Replace if unserviceable |
Full-opening temperature |
184 Degrees |
|
Dirt or oil in grooves |
Clean as necessary |
Fan |
|
| Radiator |
Evidence of leakage and damage |
Replace if unserviceable |
Blades |
6 |
|
Filler neck for corrosion and damage |
Remove corrosion; replace radiator if damaged |
Shroud opening |
21.25 inches |
|
Filler neck obstruction for overflow hose |
Remove obstruction |
Water Pump |
|
|
Overflow hose condition and secure mounting |
Repair or replace if unserviceable |
Impeller |
8 Bladed |
| Radiator coolant hoses |
Evidence of leakage, damage and deterioration |
Replace unserviceable hoses |
Drive belts |
Matched set (two) |
|
Loose clamps |
Tighten clamps |
Lubrication fitting |
One: Grease every 4,000 miles or 6 months |
| Oil hoses |
Evidence of leakage and damage |
Replace unserviceable hose |
Radiator |
Flush periodically: yearly or after long storage |
|
Loose fittings (use wrench to check) |
Tighten fittings |
Core |
|
| Temperature gauge |
With engine operating, compare gauge with accurate thermometer at radiator fill neck.
Should match within ~10°F.
|
Replace inoperative or out-of-tolerance gauge |
Tubes |
182 |
|
Integrity of wiring and connections |
Repair defective wiring |
Fins |
298 |
| Temperature sender |
Integrity of wiring and connections |
Repair defective wiring |
Thickness |
3 inches |
| Thermostat outlet connector |
Damage and looseness |
Tighten if loose. Replace if unserviceable. |
Area |
878 square inches |
|
|
|
Deaerator |
In top tank |
|
|
|
Filler Neck |
Access: Coach aft end, near center |
|
|
|
Drain Cock |
Location: Right bottom of radiator |
|
|
|
Transmission Oil Cooler |
|
|
|
|
Plates |
6 |
