[DML] Re: Carburetion Saves The Day -- Cold Start Valve (Elvis Nocita)

["Toby Peterson" <Toby@xxxxxxxxxxxxxxxxxx>]

The majority of the DeLorean vendors are too buried in cars needing 
attention right now to hover over the DML.  That said, if I get the 
gist of the original issue, an owner either had some work done in 
the "Valley of Death", or did it himself.  Shortly afterwards, he 
started to experience this "warm start" issue.  Is this a correct 
synopsis?  As somebody pointed out long ago, when a problem appears 
suddenly, you should start to look at what was last done to the car 
before the problem surfaced.  When somebody is stirring around the 
engine, removing the intake manifold, and various vacuum lines, 
wires, and other ancilliaries, one can see a number of possibilities 
of what could have gone wrong.  I personally would test and verify 
hot and cold function of the thermal control valve (102405), making 
sure that the vacuum lines are correctly positioned and connected.  
This valve controls vacuum to the CPR and the distributor, depending 
on the temperature of the coolant in the distribution pipe.  
Following that, I would test and verify the vacuum solenoid valve 
(101116), and perform a fuel system pressure test (both hot and 
cold).  Also, the ground for the frequency valve can be forgotten, 
which is a bad thing.  However, my initial vote would be for the 
102405.  See DMC Service Bulletin ST-32-12/81 for related 
information.  All possible sources for vacuum leaks must also be 
eliminated, including the idle speed motor tube O-ring into the 
airflow housing.  This is an often overlooked massive vacuum leak.

Toby Peterson VIN 2248 "Winged1"
DMC Northwest - at 120% capacity right now
DeLorean Parts Northwest, LLC       


--- In dmcnews@xxxxxxxxxxxxxxx, "Dick Ryan" <deloreanbiker@...> wrote:
> 
> C'mon Rob, Steven, Dave, Don, Toby and others let's have some vendor
> input. 
> 
> Dick Ryan
> Vin 16867
> 




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