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| | | | Joined: Sep 2004 Posts: 31 Apprentice | | Apprentice Joined: Sep 2004 Posts: 31 | fIRETRUCK RUNNING WARM TO PARADES SO I WAS GOING TO REPLACE THE THERMOSTAT
THERE IS A 3 INCH DIAMETER TANK ABOUT A FOOT LONG ON TOP OF THERM HOUSING WITH THE TOP RAD HOSE GOING TO IT
WHAT IS IT AND HOW DO YOU REPLACE THERM
THANKS | | | | | Joined: Dec 2003 Posts: 2,733 Shop Shark | | Shop Shark Joined: Dec 2003 Posts: 2,733 | Sounds like an expansion tank and the thermostat should be inside the gooseneck/therm housing, i.e., the usual place. | | | | | Joined: Mar 2004 Posts: 6,228 'Bolter | | 'Bolter Joined: Mar 2004 Posts: 6,228 | Are there any other hoses connected to the foot long tank? If yes, it could be a heat exchanger used to help cool the engine when pumping/drafting. While replacing the T-stat remove the upper and lower radiator hoses and back flush the radiator with LOW perssure water. DO NOT allow the water hose to make pressure or you will burst the seams...5-10 psi MAX. See what comes out!!  | | | | | Joined: Sep 2004 Posts: 117 Member | | Member Joined: Sep 2004 Posts: 117 | No thermostat will also make it run hot on the highway. | | |
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