[T3] Still Flooding before starting.

[Marklist]

On 12/30/2010 02:58 PM, Jim Adney wrote:
> On 30 Dec 2010 at 14:24, Marklist wrote:
>
>> 71 FI manual square.
>> For the first time I might have had a fruitful conversation with a bus
>> person.  He saw me with the box of spark plug wires and after talking a
>> while he suggested it might be the Manifold Pressure Sensor.
>>
>> Could it be?
> The '71 PS has a diaphram that sometimes breaks. If that happens, the
> engine will run very rich. This is easy to test for. Just put a clean
> hose on the PS and suck on it. If it holds vacuum fairly well, then
> it's good. If you can just suck and suck and never develop any vacuum
> at all, then yours is damaged. I've been trying to figure out a way
> to make replacement diaphrams, but no luck so far.
>
> A torn diaphram is a possibility, but it's a long shot.
>
>> I've got one from the wrong year and another that has no markings but
>> "Bosch made in Germany".
> The Bosch name is cast in, but the part number will be lightly
> stamped somewhere on the side of the cover. It may be covered with
> dirt, but it's there, somewhere.
There are two very faint stamped in strings.  One ends with "07" and the 
other starts with the VW logo and ends with a "1C".

I'm starting to think that if these kinds of no longer made parts are 
starting to fail, it might be time to consider a Megasquirt, if it is a 
bolt on solution.