[T3] I wanted to ask on the early FI auto trans IAD

William Jahn willjahn975 at gmail.com
Thu Jul 27 16:40:39 PDT 2023

In any case Jim , let me know about the 73 IAD you might have if shaft play
is good .

On Thu, Jul 27, 2023 at 3:19 PM Jim Adney <jadney at vwtype3.org> wrote:

> On 27 Jul 2023 at 13:02, William Jahn wrote:
> >  Are these on 70 and 71 and some 72 models? Where the Temp sensor is on
> the
> > left side and the MPS is on the right facing the rear of the car ? I
> can't
> > remember what year Jim has.
> The intake air temp sensors on the IAD are on the left on '70-2 models and
> on the right on '73s.
> '69 AT IADs had no temp sensor. That sensor stuck into the engine case and
> took the place of the front AAR stud.
> > All I do know is the one Tram from Samba sent me has the sensor on the
> > left side and the MPS comes off the bottom left and auto trans port is
> next
> > to the mps port but faces the right. Wasn't there some idea to run the
> > line up higher to prevent oil vapor from entering the MPS?
> That would not be a '73 IAD. Must be a '72 or earlier. Only the '73 AT IAD
> has the TWO AT Vacuum Modulator ports. I don't know why.
> I probably have a correct '73 AT IAD. Let me know if you want me to check.
> '73 moved the Pressure Sensor port to the top. Oil VAPOR is still able to
> get
> there, but any LIQUID oil which has collected on the bottom of the IAD
> won't
> be able to get into the Pressure Sensor hose.
> Oil vapor still manages to get into the Pressure Sensors and condense
> there, but it doesn't seem to cause any problems. I used to clean those
> out
> regularly, but there was seldom very much, and removing it never made any
> difference.
> --
> *******************************
> Jim Adney, jadney at vwtype3.org
> Madison, Wisconsin, USA
> *******************************
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