06-01-2018, 08:40 AM
(Is the Big Seven system pressurised?)
I didn't want to 'pour cold water' on the OP's Christmas present but the last gauge I tried read about 10% low anyway; and took a frightful long time to respond to any change. I kind of gave up on temperature gauges myself, but I guess you can view it as a general indicator of engine wellbeing (or otherwise). In which case the thing to do is observe what it generally indicates (whatever figure that may be) and watch out for marked deviations - don't fixate on the absolute value because as Phil rightly says, the 'limit' is not a fixed number!
I didn't want to 'pour cold water' on the OP's Christmas present but the last gauge I tried read about 10% low anyway; and took a frightful long time to respond to any change. I kind of gave up on temperature gauges myself, but I guess you can view it as a general indicator of engine wellbeing (or otherwise). In which case the thing to do is observe what it generally indicates (whatever figure that may be) and watch out for marked deviations - don't fixate on the absolute value because as Phil rightly says, the 'limit' is not a fixed number!