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/ubbthreads/images/graemlins/driving.gif 1977 MGB out of garage last night, to take a short drive, watched all the gauges except clock fog up somewhat. Clear night, no fog on road. All lights work on gauges, got to the point that I could not see the face of the gauge at all. Return to garage, put car away, all is fine/dry this morning. Any Suggestions, or answers why this happens. (No coolant leaks whatsoever, so that is not it.
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Gauges fogging up [at night]
- Thread starter Edward
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Mark Beiser
Jedi Warrior
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Need some more information.
Did they fog up on the inside of the gauge, or the outside?
How long did it take for them to start fogging up?
Was there a significant temperature difference between the car and the air outside? Like there would be if you have an air conditioned garage.
Was it humid outside?
Do you live in an area that has high humidity conditions?
Does your car have air conditioning, and were you using it at the time?
Has the inside of the car gotten wet recently?
Did they fog up on the inside of the gauge, or the outside?
How long did it take for them to start fogging up?
Was there a significant temperature difference between the car and the air outside? Like there would be if you have an air conditioned garage.
Was it humid outside?
Do you live in an area that has high humidity conditions?
Does your car have air conditioning, and were you using it at the time?
Has the inside of the car gotten wet recently?
Geo Hahn
Yoda
Offline
[ QUOTE ]
...Was there a significant temperature difference between the car and the air outside? Like there would be if you have an air conditioned garage...
[/ QUOTE ]
Or perhaps the other way is more likely... i.e. car in a hot garage all day taken out into the cool night air and moist air inside the gauges cause fogging inside the lenses like a cold glass of water 'sweating' on a hot humid day.
...Was there a significant temperature difference between the car and the air outside? Like there would be if you have an air conditioned garage...
[/ QUOTE ]
Or perhaps the other way is more likely... i.e. car in a hot garage all day taken out into the cool night air and moist air inside the gauges cause fogging inside the lenses like a cold glass of water 'sweating' on a hot humid day.
Mark Beiser
Jedi Warrior
Offline
[quoteOr perhaps the other way is more likely... i.e. car in a hot garage all day taken out into the cool night air and moist air inside the gauges cause fogging inside the lenses like a cold glass of water 'sweating' on a hot humid day.
[/ QUOTE ]
Yup, works both ways. If the outside air is below the dew point of the warm air in the gauges, the fogging will be on the inside.
If the guages are below the dewpoint of the outdoor air, the fogging will be on the outside of the gauge.
Most garages are actually fairly hostile environments for cars, especially the interior and electrical components. Stale, hot and humid air is not good for the interior and trim, or exposed metal. Humid conditions, with possible condensation problems, and chemical fumes are bad for the electricals and exposed metal.
Usually some garage ventalation is enough to keep things under control.
My garage is temperature and humidity controlled. I have body panels on my project that were sanded to bare metal 6 months ago that have no surface rust on them.
I'm a HVAC Technician and we had some spare equipment laying around our shop, so it didn't cost me anything though. /ubbthreads/images/graemlins/cool.gif
[/ QUOTE ]
Yup, works both ways. If the outside air is below the dew point of the warm air in the gauges, the fogging will be on the inside.
If the guages are below the dewpoint of the outdoor air, the fogging will be on the outside of the gauge.
Most garages are actually fairly hostile environments for cars, especially the interior and electrical components. Stale, hot and humid air is not good for the interior and trim, or exposed metal. Humid conditions, with possible condensation problems, and chemical fumes are bad for the electricals and exposed metal.
Usually some garage ventalation is enough to keep things under control.
My garage is temperature and humidity controlled. I have body panels on my project that were sanded to bare metal 6 months ago that have no surface rust on them.
I'm a HVAC Technician and we had some spare equipment laying around our shop, so it didn't cost me anything though. /ubbthreads/images/graemlins/cool.gif