[T3] 73 auto trans type 3 ARR ?

[William Jahn]

I looked at all the vacuum lines and could not find one loose or bad. I do
know if the trans modulator leaks you lose trans fluid and if the line is
off the trans will slam into gear. I know this because once adjusting it on
the road I forgot to connect it, The plastic Tee is fine and everything
else. No leaking gaskets besides I replaced them all. I did order the two
caps for the breather box since mine are old and hard .

 I checked the dist and the rotor snaps back as it should. But that does
not mean while it's running a weight is not sticking. I have the 73 AG for
a 73 manual trans I rebuilt so I will put that in and see if the AH has
some issue. Of all the work I did the dist has been in there the longest
and besides it could use the trigger point cam lubed .

 That seems to be the most likely problem as far as I can tell.



On Sat, Jun 10, 2023 at 11:23 PM <jadney at vwtype3.org> wrote:

> On 10 Jun 2023 at 16:46, William Jahn wrote:
>
> >  I got new Intake gaskets from you Jim. I did this work at the end of
> 2019
> > . I cleaned everything and even sealed the IAD back cover gasket using
> > silicone on both sides. Let it set up the 4 bolts loose then when dry
> > tightened them. I replaced every vacuum hose  and the injector seals and
> > all the fuel line . I made certain the IAD lined up perfectly with the
> > runners , and had to bend 2 slightly.
>
> Okay, sounds like you've got all those things covered.
>
> Have you checked the tightness of the two screws for the cold start valve?
>
> How about the hoses for the AT vacuum modulator?
>
> Does your engine still have the EGR valve and plumbing? If so, have you
> blocked it off?
> Checked the short hose that connects the 2-piece pipe to the IAD? (I made
> a blockoff plate
> for the flange to the EGR valve inlet and sealed it with one of those tiny
> VW metal manifold
> warmup gaskets. The heat exchanger also got a blockoff plate and gasket.
> My EGR filter fell
> apart and has been completely removed.)
>
> You could try flushing out the idle air channel with something like WD-40.
> And check the
> '72-3 crankcase breather that vents into the IAD cover; could there be
> something intermittent
> there? (Flush the breather port in the cover and the PCV valve in the
> breather box with
> WD-40 to make sure they're not clogged with gooey oil.)
>
> Keith's suggestion of looking for a leak with an unlit propane torch is
> always something to
> consider, but I've always found this to be hard to interpret. Maybe I've
> just never come across
> a large enough leak.
>
> If all those seem okay, yeah, maybe there's a problem with the
> distributor. You should be
> able to see if the timing always comes back to the same point at idle with
> a timing light, but,
> again, that's hard to interpret, since the timing SHOULD change between
> 800 and 1400
> RPM. Maybe you can just watch how it moves as you move the throttle and
> RPMs up and
> down.
>
> --
> *******************************
> Jim Adney, jadney at vwtype3.org
> Madison, Wisconsin, USA
> *******************************
>
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