[ROVERNET - UK] fuel Vaporization SD1

Kent Kinard kkinard at wcc.net
Fri Oct 13 13:08:59 BST 2006

Hi Miles,
I will assume a that it had been started recently before 
this episode.

Was the battery disconnected prior to startup?  If so, the 
computer will often take up to twenty minutes to "relearn" 
engine parameters.

Check the fuel pressure in the rail (not easy and somewhat 
dangerous) as the fault may lie with the fuel pressure 
regulator or the fuel pump.  My injected SD1's had many 
pump problems and injector problems, but never a bad 
regulator, though others seem to have had that problem.

What ignition are you running?  Stock distributors burn 
out in hot climates because all the electronics are inside 
the distributor body.  Symptoms for this fault are 
different, though.  Usually starts with engine cutting out 
at speed after it gets hot  and gets progressively worse 
over time.

I am unaware of any problem with fuel vaporization if the 
regulator and pump are up to spec.

It could be a fault with the cold start injector, so check 
that item for function and flow. It should not operate at 
high ambient temperatures but if the thermal time switch 
is faulty, you will get symptoms like a carb engine with 
the manual enrichment left on.  All this assumes a "hot 
soak" starting condition with high underbonnet temps.

Bueno suerte amigo,
Kent K.

On Thu, 12 Oct 2006 22:37:34 -0400
  "Winchester, Miles" <Miles.Winchester at ArvinMeritor.com> 
> Yesterday we had 36 degrees C in Melbourne and when the 
>engine was hot, my
> Vanden Plas efi (federal injection) performed like a 
>bucket of bolts for the
> first minute until the fuel pressure reached max. It 
>felt like fuel
> vaporization. Has anyone had this problem before? 
> Miles
> Melbourne VDP 
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