[T3] Auto shift issue

[Tim Keohane]

I checked it a couple times(fluid), and it was up at the top. Maybe a tad high. The car sat for 3 months garaged and then we noticed it. It may have been creeping up on us all along as the speedometer cable broke and we drove it for several weeks prior to storage. 

I'm fairly sure the parts are still stock. We have had the engine rebuilt twice in the last 23 years. It's possible the IAD is from a 72, but I think not. It was originally a California car and still has the EGR tube (blocked off) in place. I will start to double check as I have several parts boxes and am going to move on the non 73 parts.

The transmission is one we replaced last fall. It had been rebuilt several years prior and was (reportedly) stored with oil in it. We purchased it converter and all, then discarded (:( ) the old one. Thus the adjustments without a gauge. The mechanic is good, experienced, and honest so I have no reason to doubt him. It did come with the "A" VM.

My Bently (brown cover) says from 1968 on the automatic transmission is an A E. If there is a difference it must be internal. The different VM's speak to some modifications, but is sounds like the basics are the same. So far I am unable to locate a designation on the transmission.

 The Bently photo shows 6 ports with set screws, mine has 4 with cap screws, and one with a cast recess but no sat/cap screw or visible threads. I left the car up so I can slide under and check again today. Will spray cleaner and bring a tooth brush as some spots have a little dirt on them.

Is there another way the diaphragm can fail? It looks like it was tightened with a large set of pliers. The case has some marking and the slightest deformation. One must look closely to see it. Thats all I can see externally.

Will be under the car later today for another look

Tim 
73 T3 auto
On Sep 14, 2015, at 10:12 PM, Jim Adney wrote:

> 
> Any chance the ATF level is low? It must be checked with the engine 
> running. A low level will affect shift points.
> 
> I'm just trying to understand how this could change suddenly without 
> a leaking diaphram that would fill the vacuum hose with red ATF.
> 
> -- 
> *******************************
> Jim Adney, jadney at vwtype3.org
> Madison, Wisconsin, USA
> *******************************
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