| Component / Item |
"Inspect for (Visual |
except as noted)" |
Corrective action |
|
Item |
Data |
|
| Fan drive belts |
"Damage |
deterioration |
excessive wear |
glazing |
or looseness" |
Replace if unserviceable. Tighten if loose. |
|
System Capacity |
25 Quarts |
|
|
|
|
|
Pressure (Cap setting) |
13 psi (PN: 5101957) |
|
| Pressure cap |
"Plugged vacuum vent |
damaged seating surfaces |
gasket |
or locking rims" |
Replace cap if unserviceable |
|
Thermostat |
|
|
| "(*NOTE*) Normal wear on locking rims won't affect sealing of the cap |
but a bent rim can cock the cap on the radiator filler neck and affect the spring pressure enough to cause the cap to leak. If rims are bent toward top of cap |
the system will operate at a higher pressure than the system is designed for." |
Vacuum valve spring; pull out on valve head with finger tips to check tension |
Should pull out without binding about 1/8 inch and reseat by spring action; replace cap if faulty |
|
Operating Temperature |
177 - 184 Degrees |
|
|
|
|
|
Full - opening temperature |
184 Degrees |
|
| Water Pump |
"Damage |
leakage |
and mounting bolts" |
Replace if unserviceable. Tighten loose mounting bolts |
|
Fan: |
|
|
|
|
|
|
Blades |
6 |
|
| Water pump gasket |
Evidence of leaks |
Replace |
|
Shroud opening |
21.25 inches |
|
|
|
|
|
Water Pump: |
|
|
| Pulleys |
"Excessive wear |
and damage" |
Replace if unserviceable |
|
Impeller |
8 Bladed |
|
|
Dirt or oil in grooves |
Clean as necessary |
|
Drive belts |
Matched set (two) |
|
|
|
|
|
Lubrication fitting |
"One: Grease every 4 |
000 miles or 6 months" |
|
| Radiator |
Evidence of leakage and damage |
Replace if unserviceable |
|
Radiator |
"Flush periodically: at least every 12 |
000 miles or yearly; also recommended after long storage" |
|
|
Filler neck for corrosion and damage |
Remove corrosion; replace radiator if damaged (cannot buy new. They are worth their weight in gold.) |
|
Core |
|
|
|
Filler neck for obstruction of outlet to overflow hose |
Remove obstruction |
|
Tubes |
182 |
|
|
Overflow hose for condition and secure mounting |
Repair or replace if unserviceable |
|
Fins |
298 |
|
|
|
|
|
Thickness |
3 inches |
|
| Radiator coolant hoses |
"Evidence of leakage |
damage and deterioration" |
Replace unserviceable hoses |
|
Area |
878 square inches |
|
|
Loose clamps |
Tighten clamps |
|
Deaerator |
In top tank |
|
|
|
|
|
Filler Neck |
"Access: Coach aft end |
near center." |
|
| Oil hoses |
Evidence of leakage and damage |
Replace unserviceable hose |
|
Drain cock |
Location: Right bottom of radiator |
|
|
Loose fittings (use wrench to check) |
Tighten fittings |
|
Transmission oil cooler: |
|
|
|
|
|
|
Plates |
6 |
|
| Temperature gauge (on coach dash panel) |
"With engine operating in normal temperature range |
place an accurate thermometer beside radiator fill neck. Indications on thermometer and gauge should be the same within approximately 10 degrees F" |
Replace inoperative or out of tolerance gauge. |
|
|
|
|
|
Integrity of wiring and connections |
Repair defective wiring |
|
|
|
|
|
|
|
|
|
|
|
| Temperature sender |
Integrity of wiring and connections |
Repair defective wiring |
|
|
|
|
|
|
|
|
|
|
|
| Thermostat outlet connector |
Damage and looseness |
Tighten if loose. Replace if unserviceable |
|
|
|
|
