Cayman 2006
Chassis Information — Section 10 • 259
Coolant System Maintenance
Inspect other components of the cooling system when performing maintenance. Have an inspection performed
of the surge tank cap seal and have the cap pressure tested at each oil change. The charge air cooler and radiator
also require inspection for cracks, broken welds, secure mounting, and general cleanliness.
It may be necessary to clean the radiator and external coolers more often under certain conditions. Road debris
and other contaminants can block the radiator and cooler fi ns resulting in reduced cooling system performance.
Blockage can vary depending on road, climate, and regional conditions. Check the radiator and external coolers
weekly for blockage, and clean as required.
Compressed air is recommended to clean the radiator and external coolers. In the event that road grime, oil, or
inadequate cleaning with compressed air is encountered, a high pressure washer and degreaser may be used with
caution to avoid excess pressure that can bend the radiator fi ns.
Refer to the OEM manual for detailed maintenance and service procedures. These services include: draining
the engine coolant, fl ushing/cleaning the cooling system, inspecting the water pump standpipe, replacing the
thermostat, gasket and seal, and replacing the coolant and SCA element.
Coolant Hoses:
Rotten, swollen and worn hoses, as well as loose connections, are frequent causes of coolant system problems.
Overheating can be caused by a collapsed hose or a clog caused by rubber shedding from a rotton hose. Replace
any hose found to be cracked, swollen or damaged. Connections should be inspected periodically and hose clamps
tightened.
INSPECTION:
Check all hoses, clamps, and fittings for leaks due to cracking, softness, and loose clamps/
fittings. Look for signs of fluid leaks, damaged end fittings, ballooning, chafed, kinked, or
crushed hoses, and loose clamps and fittings. Correct any deficiencies found.
Coolant Overheated:
If the engine is overheated, never pour cold coolant into a hot engine. The sudden change in temperature may
crack the cylinder head or block. If the engine is hot, fi ll slowly to prevent rapid cooling and distortion of engine
castings.
INSPECTION:
Inspect the radiator core and CAC for dirt and debris build-up. Wash any accumulations
using high-pressure water, being careful not to damage the fins from excessive pressure.
Grease or oil build-up should be treated first with a non-caustic degreaser to ensure a
thorough cleaning.
Coolant System - Thawing:
If the coolant system becomes frozen, the motorhome must be towed. Place the motorhome in a warm area
until completely thawed. If the engine is operated when the cooling system is frozen it will result in engine
overheating due to insuffi cient coolant circulation. Once thawed, check engine, radiator and related components
for damage caused by expansion of frozen coolant.
Summary of Contents for Cayman 2006
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Page 59: ...Cayman 2006 Driving Safety Section 2 51 Weight Label 100179d ...
Page 65: ...Cayman 2006 Driving Safety Section 2 57 Actual Worksheet 020255b ...
Page 66: ...58 Section 2 Driving Safety Cayman 2006 Weight Record Sheet ...
Page 72: ...64 Section 2 Driving Safety Cayman 2006 NOTES ...
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Page 174: ...166 Section 6 Water Systems Cayman 2006 NOTES ...
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Page 190: ...182 Section 7 LP Gas Systems Cayman 2006 NOTES ...
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Page 212: ...204 Section 8 Electrical Systems House Cayman 2006 NOTES ...
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Page 287: ...Cayman 2006 Chassis Information Section 10 279 METRIC U S CONVERSION CHART ...
Page 289: ...Cayman 2006 Chassis Information Section 10 281 ...
Page 290: ...282 Section 10 Chassis Information Cayman 2006 ...
Page 291: ...Cayman 2006 Chassis Information Section 10 283 NOTES ...
Page 293: ...Cayman 2006 INDEX ...
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Page 300: ...292 Index Cayman 2006 NOTES ...