Re: [DML] help!

[dherv10@xxxx]

Rob, Let me make some comments:
When you say running rough, was that at idle, If so it sound like the car is 
starving for gas or needs a tune up. Make sure the idle speed motor is 
turning on at idle and opening the valve. It does it through the idle speed 
switch. If it doesn't turn on and open the idle speed motor, it may not 
start. Over time the control plunger may need adjusting. That's the small 
hole in front of the fuel distributor, at rest if it is sitting to low the 
car won't start. How fast will it idle and is it smooth or rough.1/4 turn to 
the right will make a difference. 

fuel pump output volume exceeded specs after the fuel filter ( not the 
problem )
-cold start valve sprays approximately five seconds ( supposed to if 
operating proper)
-bypassing thermal time switch for fifteen seconds still did not start car. 
( Car was most likley flooded. ) I wouldn't by pass.

ignition system:
-checked resistence of ballist resistors ( should be 1 ohm full and 1/2 ohm 
ea.)and ignition coil
--ignition coil checked slightly high. ( will do so over time but normally 
won't stop it from starting unless a wire id broken inside.If it is the 
factory old one, I would change it.)
----substituted a coil from another delorean and no change ( ok )
-checked spark at plug ends of wire for plugs 2, 3, 5, and 6 ( ok )
--spark was orangish and arced about 3-sixtenths of an inch ( ok )
---never pulled any plugs to look ( no need to if it was running ok when 
stopped )

with ignition on, but not cranking:
--voltage at first ballist resistor is 12.4 volts ( low, should be at least 
12.66 which is battery voltage, but should not stop it from starting.) 
--voltage at terminal 15 of coil was about 4.3 volts( ok, but what was the 
voltage on the resistor on the bottom right side during cranking.)
--condensor to ground showed over 1.5 megohms. ( ok )

-timing at cranking speed using plug six about ten degrees btdc ( Timing at 
idle should be at least 13 degrees before TDC. There is a mark on the timing 
plate for it. 
--plug six was firing rarely(using intuction timing light) ( possible weak 
fire, check voltage on bottom right of resistor during cranking. )

John Hervey
www.specialTauto.com