[T3] New pump different hic-ups

[Jim Adney]

On 18 May 2015 at 21:45, Gary Forsmo wrote:

> Your remedy for resolving the "sometimes" problem of "sticking injectors"
> is EXACTLY what I've been telling you about my '69 Square.  But you
> explained it so much clearer.
> Your description of the "fix" is precisely what we should try, when you
> return.

In my limited experience, the injectors have tended to "stick" 
slightly open. In other words, one of them will fail to shut off 
completely. When this happens, the car will only run on 3 cylinders 
until you get up to speed enough to clear out that over-fueled 
cylinder. Once cleared out, things go right back to normal: 4 good 
cylinders.

My guess is that this is due to a bit of rust that keeps the injector 
pintle from dropping all the way back to the closed position. My hope 
is that some amount of continuing operation will eventually clear 
this rust away.

I've never experienced one cylinder going from good to bad suddenly 
in the middle of a drive, so I think your experience is different. 
But we can certainly consider that possibility.


-- 
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Jim Adney, jadney at vwtype3.org
Madison, Wisconsin, USA
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