Chassis Information ---
Section 10
Cayman 2005
355
COOLANT SYSTEM
The cooling system consists of a radiator mounted at the rear of the
motorhome, cooling fan, transmission cooler, and a charge air cooler. Steel
tubes and radiator hoses allow engine coolant to flow between the radiator
and the engine. The fan draws air from the outside of the motorhome,
through the radiator and into the engine compartment. These components
working together ensure that all the chassis systems maintain proper oper-
ating temperatures as they are inter-related. A problem with one component
may cause problems with an entirely different system.
After the engine reaches proper temperature, the water regulator (ther-
mostat) on the engine opens and allows coolant to flow from the engine,
through the upper radiator hose and into the radiator. The coolant is cooled in the radiator and flows
through the transmission cooler and back to the engine through the lower radiator tube. A by-pass tube
installed between the thermostat housing and lower radiator tube functions to supply coolant to the trans-
mission cooler under certain conditions to ensure proper cooling.
As the intake air passes through the turbo charger, the air is pressurized and heat is generated. The air
is then cooled as it travels through the Charge Air Cooler.
With the components working together to maintain the engine and transmission at the proper tem-
perature, proper maintenance of the cooling system is very important. One neglected component could
result in cooling problems. Maintenance of the cooling system includes a proper coolant levels using
the correct mixture of coolant and additives, regular inspection of system components, flushing the
coolant system with approved cleaners, and ensuring that the exterior of the radiator and other external
coolers are kept clean of debris.
The engine coolant level should be checked daily to ensure that it is at the proper level. At the rear of
the motorhome is a plastic translucent "surge tank." Under certain lighting conditions it may be difficult
to see the level of the coolant in the surge tank and a flashlight held behind the surge tank should enable
easier viewing.
Engine Coolant Reservoir:
The engine coolant reservoir is connected to the radiator by a hose.
When the motorhome is driven, coolant heats and expands. A portion of
fluid displaced by expansion flows from the radiator into the reservoir
tank. When the engine is stopped, the coolant cools and contracts.
Coolant is drawn back in the radiator by a vacuum. Thus, the radiator is
kept filled with coolant to the desired level at all times, resulting in
increased cooling efficiency. The coolant level should be at, or slightly
above, the appropriate mark on the reservoir tank when the system is
cold.
CAUTION:
To avoid scalding hot steam or coolant from being released from the engine cooling sys-
tem, never remove the reservoir cap while the engine is running or hot. Failure to follow
this warning may result in damage to the engine’s cooling system and possibly cause
severe personal injury.
080208d
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Summary of Contents for Cayman 2005
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Page 76: ...Section 2 Driving Safety Cayman 2005 76 100179D Weight Label...
Page 81: ...Driving Safety Section 2 Cayman 2005 81 020254 Cargo Carrying Capacity Flowchart...
Page 83: ...Driving Safety Section 2 Cayman 2005 83 020255k Actual Worksheet...
Page 84: ...Section 2 Driving Safety Cayman 2005 84 Weight Record Sheet...
Page 85: ...Driving Safety Section 2 Cayman 2005 85...
Page 86: ...Section 2 Driving Safety Cayman 2005 86 010725 010726c VIEWS Front Rear...
Page 87: ...Driving Safety Section 2 Cayman 2005 87 010723f 010724e Roadside Curbside...
Page 95: ...Driving Safety Section 2 Cayman 2005 95 NOTES...
Page 96: ...Section 2 Driving Safety Cayman 2005 96 NOTES...
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Page 108: ...Section 3 Exterior Interior Care Cayman 2005 108 Fabric Specifications Charts...
Page 109: ...Exterior Interior Care Section 3 Cayman 2005 109...
Page 134: ...Section 3 Exterior Interior Care Cayman 2005 134 NOTES...
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Page 165: ...Appliances Section 4 Cayman 2005 165 NOTES...
Page 166: ...Section 4 Appliances Cayman 2005 166 NOTES...
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Page 203: ...Equipment Section 5 Cayman 2005 203 NOTES...
Page 204: ...Section 5 Equipment Cayman 2005 204 NOTES...
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Page 229: ...Water Systems Section 6 Cayman 2005 229 WATER SYSTEM DIAGRAM 040487c Typical Layout...
Page 230: ...Section 6 Water Systems Cayman 2005 230 NOTES...
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Page 250: ...Section 7 LP Gas Systems Cayman 2005 250 NOTES...
Page 252: ......
Page 286: ...Section 8 Electrical Systems House Cayman 2005 286 NOTES...
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Page 292: ...Section 9 Electrical Systems Chassis Cayman 2005 292 080427f 080387C 080388c...
Page 315: ...Electrical Systems Chassis Section 9 Cayman 2005 315 ENGINE NO START FLOW CHART...
Page 316: ...Section 9 Electrical Systems Chassis Cayman 2005 316 NOTES...
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Page 376: ...Section 10 Chassis Information Cayman 2005 376 LUBRICATION CHARTS 070166G FRONT...
Page 382: ...Section 10 Chassis Information Cayman 2005 382 METRIC U S CONVERSION CHART...
Page 384: ...Section 10 Chassis Information Cayman 2005 384...
Page 385: ...Chassis Information Section 10 Cayman 2005 385...
Page 386: ...Section 10 Chassis Information Cayman 2005 386...
Page 387: ...Chassis Information Section 10 Cayman 2005 387...
Page 389: ...Cayman 2005 INdex...
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