I noticed they don't work, try these values in cockpitinfo
// Fuel level
FuelLevelRange=(0.0, 1.0, 135, 45)
FuelLevelClockwise=1
FuelLevelNeedle=(0.6, 0.5)
FuelLevelCenter=(0.5, 1.0)
FuelLevelBackground=int_gauge_fuel.bmp
FuelLevelNeedlemap=int_gauge_needle.tga
// Water temperature
WaterTempRange=(104, 248, 135, 45)
WaterTempClockwise=1
WaterTempNeedle=(0.6, 0.5)
WaterTempCenter=(0.5, 1.0)
WaterTempBackGround=int_gauge_water.bmp
WaterTempNeedlemap=int_gauge_needle.tga
// Fuel level
FuelLevelRange=(0.0, 1.0, 135, 45)
FuelLevelClockwise=1
FuelLevelNeedle=(0.6, 0.5)
FuelLevelCenter=(0.5, 1.0)
FuelLevelBackground=int_gauge_fuel.bmp
FuelLevelNeedlemap=int_gauge_needle.tga
// Water temperature
WaterTempRange=(104, 248, 135, 45)
WaterTempClockwise=1
WaterTempNeedle=(0.6, 0.5)
WaterTempCenter=(0.5, 1.0)
WaterTempBackGround=int_gauge_water.bmp
WaterTempNeedlemap=int_gauge_needle.tga