IML: IML Help

[Joe Strickland <jwstrick426@xxxxxxxxxxxx>]

Greg;

Check to see if you are getting spark when it doesn't start.  The old 
method of disconnecting a spark plug and laying it against a part of the 
engine block should work.  If there is no spark then trouble shoot the 
ignition circuit.  I had a Mopar years ago that exhibited the same 
problem and found that there was a ballast resistor in the ignition 
circuit which opened up under some conditions and caused an intermittent 
no start situation.  If you do have spark, then trouble shoot the fuel 
system.  Make sure gasoline is getting to the carburetor.  It could be 
something as simple as vapor lock.  If that is the case, insulating the 
fuel line from pump to carburetor should help.  Also make sure the line 
is not too close to the exhaust manifold.

I assume your car still has a Carter AFB (aluminum four barrel 
carburetor).  Those were not known to have many problems.  The later 
cars ('69 & up?) used Carter Thermoquads and those often develop cracks 
in the phenolic body part of the carburetor.  That causes fuel to leak 
out of the bowl of the carburetor until enough cranking pushes fuel back 
in to fill the bowl again.  It sounds like the gasket set you installed 
would have eliminated the possibility of the fuel being cooked out of 
the carburetor since there is no longer any exhaust gas going underneath 
the carburetor.

Joe

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