Pelican Parts Forums - Gauges fogging up

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yeah, but its esthetically annoying.

cleaning inside glass with some alcohol works fine a period of time... though issue returns

Quote:

Originally Posted by James Brown (Post 5202236)

Air on the rear of the gages is "trunk air"(colder), cabin air is on the front of the gages (warmer). They will always fog up in colder/wetter weather. Holes in the rear helps but it's one of those things. Might want to try to to port some warm air to the rear of the gages from the heat ducts or drill some holes in the gages. The tach. is usually not affected and that's the one that counts the most.

+1! That's a clever idea, I haven't heard before. I look into this.

Quote:

Originally Posted by ramonesfreak (Post 10551362)

Many say you can pull apart. I’m not one of those. The shops that do this work have the special tool that allows them to remove the bezel and reinstall so when done, the gauge still looks factory new and not all mangled

They all fog up. Mine always have. I have read that if you get the inside of the glass cleaned up, they will fog less.

I wouldn’t bother possibly ruining you gauges just to dry them. They will dry on their own

Just not true. On my recent trip to Florida the humidity was brutal, and it has been silly humid here in Oklahoma. I park my 911 in a nice dry garage, and I drive with the windows up 99.999% of the time. Either the heater or AC is running if the engine is running. I saw a tiny amount of fogging in just the gas gauge while in Florida in 95 degree 85% humidity, rainy day. It cleared up withing a short time of the sun coming out and the rain stopping. It was only the one day, and it was unusual to see it at all.

I suspect driving with the windows down may be the cause. I drove my 914 with no AC for 25 years. I have had enough convertible, and window down driving to last a lifetime. Now I drive with the windows up.

Ok well your in the minority of people that have effective AC. Generally speaking. 1980s 911 gauges fogging is a well known issue

In any case my fogging, which usually happens in spring, clears up in minutes. Not a big deal