directly from the rave:
Thermostat - Main valve
The thermostat is used to maintain the coolant at the optimum temperature for efficient combustion and to aid engine
warm-up. The thermostat is closed at temperatures below approximately 82°C (179°F). When the coolant
temperature reaches approximately 82°C the thermostat starts to open and is fully open at approximately 96°C
(204°F). In this condition the full flow of coolant is directed through the radiator.
The thermostat is exposed to 90% hot coolant from the engine on one side and 10% cold coolant returning from the
radiator bottom hose on the other side.
Hot coolant from the engine passes from the by-pass pipe through four sensing holes in the flow valve into a tube
surrounding 90% of the thermostat sensitive area. Cold coolant returning from the engine, cooled by the radiator,
conducts through 10% of the sensitive area.
In cold ambient temperatures, the engine temperature is raised by approximately 10°C (50°F) to compensate for the
heat loss of 10% exposure to the cold coolant returning from the bottom hose.
03 Land rover disco 2 -- ARB bullbar w/warn m8000, Custom rear bumper, 04 CDL installed, Muffler removed, 16" Steel rims 235/85 Destination MT's, Spare tire moved to load space, Pioneer radio, OME 2inch HD lift, Front and rear TruTrack diffs, scangauge2.
12 Mercedes-benz ML350 BlueTec 28-mpg
12 VW Touareg TDI Executive 30-mpg