Demisting in old vehicles!

That rather silly Oz movie "Braindead" was on the telly again last night.

Only in extreme cold - IME you only have to raise the temp of the glass a little to stop the condensation/misting.

Double glazing ?

I've got some neat washing-up sponges that you fill with washing up liquid, which soaks into the sponge from a reservoir in the handle, I'll fill one up and put it in the truck and see if it helps. They've got a scouring surface on top of softer sponge, I'll cut that off first.

William Tasso uttered summat worrerz funny about:

Cling film.... when it mists... whip it off... alright for another 30 seconds then :-)

As an old V-Dubber I can add that I'm a little concerned if you do get exhasut whiffey down the heater then that a pretty sure sign of a holed heat exchanger allowing exhaust fumes in to the cabin. A few people have lived to tell the tale so best be certain!.

The other thing with exhaust heat exchangers on Vdubs is that when the outer case of the heat exchanger rots it then fills with road spray as you are driving and guess what happens next :-) Dunno where your heat exchangers are mounted but worth considering both the above.

Another suggestion would be to check out the VW groups, especially those who use Vans who will be in the same predicament, they are quite a create bunch and probably have an off the shelf doofer.

Lee D

Cheaper soaps tend to be less effective in my experience, bit of trial and error can be afforded though.

Lee_D uttered summat worrerz funny about:

Guess you've probably looked at these...

I know it's not 24 volt but figure you'll soon be fitting a 12v circuit too.

Lee

Last winter I was getting ice on the inside of the screen on my 90. wonder if it would stop that?

Richard

Ah no don't worry about that, the exhaust fumes are present in the air washed out from the engine compartment, not in the heater air, which is drawn in fresh and heated by the exhaust, not the engine. The exhaust fumes reference was made because Austin IIRC had suggested I vent hot air from the engine to the windscreen. The exhaust fumes are only there because the lack of aerodynamics tends to suck them in all sorts of directions, not because there's any leaks in the exhaust system.

I've got a friend with an air-cooled camper, I'll see if he's got any suggestions.

Cheers, I'll have a peek, no 12 volts yet but I've got a converter in a box somewhere, not fitted it yet as replacing the diff took priority! I only really need it for the laptop, most of my other in-car toys are dual voltage.

The other thing to try is mix up a solution of Johnsons No More Tears baby shampoo and wash the inside of screen and windows with it occasionally, it helps avoid misting up. Works on crash helmet visors.....

Cheers, probably similar to the washing up liquid idea which I'm in the process of trying out.

||| e) I have seen advertised (in the IAM magazine, though never in an ||| LR comic) a small 12v heater that sits on the dash and directs warm ||| air to the screen. I imagine this would work well and be an easy ||| and permanent fix.

|| I had one of those little 12v ceramic heaters, what a waste of money, || nowhere near warm enough to demist. || Richard

Not sure is it was one of those ceramic jobbies or a better one. Thinking about it, though, my best trick when we had longer spells of cold mornings was a 230v fan heater placed between the front seats pointing at the screen with the cord passing out and into the house. Put it on 30 mins before you want to go, and not only were the screen and all windows clear, but the car was almost too warm to get into.

||| d) spit really does work (even on the inside of a diving mask after ||| rinsing in sea water) but quantity is an issue. || || Perhaps I need to buy myself a labrador! Put it on one side of the || glass, me on the other, job done!

Why didn't I suggest that??? From the way my lab's slobber sticks to any smart clothes I happen to have breakfast in, it should be an almost permanent solution.

On a serious note I remember some time ago buying a bottle of demist solution in Halfords, wipe over and it prevents misting

I thought that was for the outside, to make the rain bead up and run off when your wiper motor packs in. I would have thought that all that starch wiped over the inside would make the solution worse than the problem you're trying to solve.

Dad had two uses for potatoes (that he told me of, anyway). One was the replacement wiper trick; the other was to ram up the exhaust pipes of vehicles in other regiments when they were messing around in the desert with Monty. The kind of fun you have whan you are bored stupid.

|| On Fri, 24 Nov 2006 10:35:55 +0000, Ian Rawlings || wrote: || ||| On 2006-11-24, rads ||| wrote: ||| |||| Got a mate and his girlfriend back from spain in torrential |||| downpours when the wiper motor on his very dodgy morris minor van |||| packed up. ||| ||| Don't worry, I haven't totally dismissed the idea, although the ||| windows turning white when it's dry is a little off-putting.. ||| ||| So in my cab I need some washing up liquid, some leather, a ||| hairdryer, ||| some string and a couple of spuds. It's beginning to sound like ||| some ||| kind of bizarre survival challenge ;-) || || || You forgot the virgin goat. || || David

And the labrador.

I did that a few years ago with my series III and cracked the windscreen - oops. 3KW probably too hot!

Richard

Its a great film! :) watch bad taste too as it is just as good. Come to think of it there are a lot of good cheesy oz horror movies. I have one somewhere with harold out of neighbours in it as an evil scientist..

I was thinking of redirecting the passenger (offside) demister pipe to the side window but with the mirror in the present position it may be easy to just move the demister vent along to the exact windscreen position that you can see the mirror through?

Martin

Well, you started it with your goats kidneys and vinegar. :-)

Martin