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Fogging up my windshield
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I like the idea, so someone please hurry up and fabricate some vents (Jon).
Interesting that they said common in the H, also common on the early XLII’s like mine. Sheesh, you would think they could figure that out and come up with a fix. The guys at Liberty have actually made some half moon covers to place in the ductwork, but you still have to tear the dash apart.
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While it is nice to think people believe I could make the adjustable vents I don’t think it is that easy.
The problem in designing and building a solution appears to be coach specific. What might work on mine is unlikely to work on another because different converters have different dash designs and different ways the vents are shaped.
On my 97 coach the vents were plastic and they rose above the dash surface. They were held in place with small screws and matched the surrounding dash surface in color. On my current coach the vents are an integral part of the dash, are flush with the dash surface and there is no apparent way to remove or alter them. If I have to take the dash apart I will do the mods (which I don’t need) at the ducting. That raises another concern. With my later model controls the directing is done by pushing a button on the AC controls. In previous models the ducting was controlled by a big round knob so even if the ducting is accessed the solution may vary coach to coach. I have no clue if the H series coaches are like the XL series.
If I had the problem I would start by figuring a way to cap any or all of the defroster vents with a material that blocks the flow of air, is possibly held in place with screws or velcro, and is compatible with the dash material and colors. In the case of defroster vents that stick up above the dash such as on my two previous coaches I would remove them and work from the inside to fashion a permanent flow restrictor. I would allow more air flow at the driver’s side.
In the case of the flush vents it would seem a small piece of any material that sat on the surface would work, such as a piece of Corian cut to shape, or even a decorative brass piece.
There is always duct tape.
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Guys, don’t over think this one. Put something like this between the air box and the vents. You would Y the output to support how ever many defroster vents you have. The only possible challenge is finding a place behind the dash.
http://www.hydrogalaxy.com/climate-control/exhaust-fans-circulators/6-duct-damper-normally-closed/
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Gil,
The XLII dash is a very big deal to take apart, not easy like the XL’s. So our best option is as Jon suggested, restricting the vents from the underside. I will be tackling that project.
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FWW several NEW 2006 Marathons, both styles, had the front windshield vents installed BACKWARDS!! We discovered this problem going over the Mt Shasta pass on I-5 in a WHITEOUT blizzard. My better half was wiping the drivers side as fast as she could while I desperately tried to keep up with the 18 wheeler in front of me!! It may not sound serious but when you LITTERALY can’t see the road to pull off, it is frightening!! For all you who are asking what the hell was I doing in that situation…On the Redding CA side the state troopers had the road open w a rain warning…NO HAZARD!!! As we ascended the Front shifted and the rain turned to snow/Blizzard conditions!! Steep exit ramps covered w snow and no way to see the shoulders.Of course when we came out the north end of the pass, the state troopers had CLOSED the road and as we came out of the snow back into rain, we saw HUNDREDS of vehicles waiting for the interstate to reopen south!!! The 18 wheeler and US were the last ones up the pass!! Needless to say when I got to Marathon, their offer to fix the vents fell on deaf ears!! LUCKILY the offer fell on ears that could still hear!!
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