On Sun, Oct 25, 2009 at 11:25 AM, John Bange <jbange@gmail.com> wrote:
>> The idea of having to switch back/forth just to set intervals isn't
>> really convenient. Still, I look forward to using it.
>>
>
> Once you try it out, you'll see the genius in it. Say it starts raining a
> bit harder and the interval �isn't short enough. To adjust, you just flip
> the lever to off after it wipes. Then when you decide the window is getting
> a little hard to see through, you simply flip it down to interval wipe
> again. The interval is then set to wipe at EXACTLY the right time to keep
> your vision clear. �No fiddling with a knob trying to guess where to set it.
>

Thanks John. Just used it under perfect Vancouver rain conditions. Now
I see the genius. Those efficient German engineers!  <grin> Works
great.

Tried using the pull method. Nada. Seems to work only by dropping
lever down. But as you say, genius. I like it just fine.

>> I wonder if it's possible to install a pot to adjust intervals?
>>
>
> I don't think you can do that with the 99, but the old 19 relay uses a
> single resistor to determine the fixed delay. Replace that resistor with an
> appropriate pot and it'd work.

I *basically* see what you mean. Good point about the 19 relay. Likely
the 99 has some kind of electrolitic cap in there.... or some such.

Neil.

-- 
Neil Nicholson '81 VanaJetta 2.0 "Jaco"

http://tubaneil.googlepages.com/

http://groups.google.com/group/vanagons-with-vw-inline-4-cylinder-gas-engines