[Vwdiesel] Problem with top speed

[Derek]

This may sound a bit retarded, but when was the last time the fuel filter
was changed ?  A restriction  in the fuel delivery would most certainly
cause high speed problems ( experiences with veg oil will teach you that
!! )


----- Original Message -----
From: "Forrest L King" <forrestking at juno.com>
To: <vwdiesel at vwfans.com>
Sent: Wednesday, July 30, 2003 7:03 PM
Subject: [Vwdiesel] Problem with top speed


>
>
> Hello,
>
> I have a 1981 VW Rabit pickup with a freshly rebuilt 1.6l NA engine (new
> rings, same pistons).  I have about 2000 miles on the engine.  While on a
> recent trip I noticed very high fuel consumption after one particular
> fillup - I was driving at an indicated 70mph.  As the day progressed my
> top speed decreased.  the truck will now only go 55.  I accelerate to 55
> in 3rd gear, and then when i shift to fourth i cannot get any
> acceleration.  I pulled the injectors and had them tested, they were
> found to be 'poor, but useable'.  I purchased NEW injectors and installed
> them along with a new fuel filter and air filter.  The problem has not
> changed.  I still cannot accelerate above 55.
>
> The truck is equipped with an old style vacuum pump that has a vent into
> the crank case.  The truck starts and idles fine, and after I run down my
> test road (up to 55mph) and stop quickly at the end of the road the
> engine idles terribly rough and acts as if it wants to die.  Could my
> problems be related to the vent on the crankcase/vacuum pump??
>
> Any help is greatly appreciated,
>
> Forrest King
>
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