[T3] my long term issue have to unplug TS1 for a smooth idle.

[William Jahn]

I'm not sure, I would imagine air temp would affect how open or closed the
valve is. From what I recall you can't see the entire slot through the IAD
port end. The slot is about 1/8" wide and it's deeper at one end then
shallow at the other like a ramp. When cold you see the deeper area as it
heats up it rotates to the shallow end , once the shallow end is just out
of sight the valve is fully closed. If I recall the slot is only open at
the shallow end to the oil bath port since the valve in hollow . The slot
starts out deep and as it rotates closed since the slot bottom is a ramp
less and less air gets through until the most shallow end open to the oil
bath port passes out of sight then the valve is closed. What I saw at 80*F
was the deep end of the slot was just at the edge of the inlet so full open
. You can't get the flat wound thermal spring on wrong because the valve
stem is slotted to fit the inner most part of the spring the a hole in the
slotted shaft for the screw and spring for the +/- adjustment the hole is
slotted . Over years of heating and cooling cycles I imagine the spring
changes I just adjusted to the far end of the slot so it would close sooner
it's marked with a red dot center on screw factory calibration.

On Tue, Oct 1, 2019 at 8:57 AM Jim Adney <jadney at vwtype3.org> wrote:

> On 30 Sep 2019 at 17:30, William Jahn wrote:
>
> > I just checked the AAR . Pulled the hose off the IAD end and looked with
> a
> > mirror and even though it's a little warm still it's almost completely
> > open so it's not sticking closed .
>
> I'm just guessing at what the temp was, but I'd think it should have been
> halfway open at most. I'd expect full open to occur near freezing.
>
> But, yes, it does sound like it's not sticking.
>
> --
> *******************************
> Jim Adney, jadney at vwtype3.org
> Madison, Wisconsin, USA
> *******************************
>
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