[urq] Warm-up regulator questions

[urq]

My wife and I only have one daughter ... but she has shown a penchant for
the use of tools ... so don't "count your chickens"!  :-)

For the AAR ... check it at the air temperature you are starting the car at
... it should be allowing air to pass at this temperature.  The heater
should close it after the car is running a while.  You say that you're
having to use the throttle to keep the engine running, which would suggest
that the valve is not allowing the air the engine needs to run.  

As to the fuel pressure test ... if you want to preserve your Scotch supply
you can attach the pressure gauge and use a jumper for the fuel pump to
cause the pump to run ... and then test the control and system pressure.  

-----Original Message-----

Comments inserted.

> -----Message d'origine-----from Steve B of the urq list.
> 
> First off, congratulations on the addition to the family!

*** Merci beaucoup. This 2nd girl is making us very happy. No one will mess
with my stock of old car parts, or my toolbox. In which I added a tailpipe
expander (2 1/8th to 3 1/4th) from Walker no later than last week. Who was
saying that a guy can't have too much tools ?
> 
> I don't remember if it was the Fox or the urq, but yes, I have taken a
> Control Pressure Regulator apart and reassembled it successfully.  They
> aren't really that complicated inside ... I'd recommend holding off on
> buying a replacement until you know for a fact that yours is unrepairable.

*** I don't have a 500$ bill under the hand right now, so I'll follow your
suggestion. A new baby is a good investment, if you know what I mean.
> 
> Before taking anything apart though, get a fuel pressure gauge and verify
> the control/system pressures are within the proper range based on
> temperature.  IMO the fact that you have tried two different ones and get
> similar results does tend to indicate that the CPR is working ...

*** I indeed have a set of fuel pressure gauges here, I just wait for
Geraint or Brady to stop by and turn the key while I check the dials. They
are invisible since a while... Maybe I should replenish my stock of 12 years
old Scotch ?
 
> Based on your description I would wonder if the Auxiliary Air Valve is
> stuck
> closed.  

*** I have 3 of these here, and they are behaving exactly the same. When put
in the freezer, they let a lot of air through their body. When the heating
element is hot enough, air passage is mostly restricted, but there is still
some "breathing" possible. Is this a correct behaviour ? Should they be
perfectly shut when hot? This part is way less expensive, around 85$. 

> 
Louis-Alain