Control pressure issue with 200TQ

[james accordino]

They are expensive.  I might think about trying some
used ones if you can get them cheap.  Did you check
Scott M's site?  He's got great info on diagnosing
these systems on the 200.  Your cold pressure is
nearly double and the warm is high as well.  Your
system pressure is right at the upper limits per
Bentley.  The WUR is easy to change.  Also Probst
mentions that the return line from the fuel
distributor can be clogged.  Could this cause the low
and high pressures both being high at the WUR?  He
states that if pressure does not rise properly from
cold with current supplied to the WUR in 2 minutes, a
restriction in the return line is indicated.  That's
pretty easy to test if you've got the gauge hooked up.
 You don't even need to run the engine.  Good luck.

Jim Accordino

--- Peter Golledge <petergg at dimensional.com> wrote:
> Listers,
>
> My wife's 200TQ has been slow when cold (fine when
> hot or if left for a
> week!).  I put the fuel pressure gauge on and the
> control pressure is
> over spec (43 PSI Cold, 65 PSI Hot), system pressure
> is spot on (95).
> It appears to be a bad regulator, are these worth
> pulling from a bone
> yard?  Any adjustment possible?
>
> Regards
> --
> Peter Golledge
>


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