<VV> misfire (technical)/ remedy (humor?)

[Louis C. Armer,Jr.]

Hey MK, Take two aspirins, go do all the things you said you were 
going to do  and call us
for an appointment tomorrow !!! <GGG>

FrontMan
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At 05:47 PM 10/22/2006, you wrote:
>  This is a new one on me. I knew I had a misfire or weak cylinder. 
> I had just completed a partial overhaul (balanced pistons, rods and 
> head work) on the engine, 140 4 speed . I was sure that # 4 was not 
> firing properly (wet dirty plug) and it appeared to have low  compression.
>
>    Today I did a  new comp  test of the #2,4,6 cylinders They were 
> 190, 180, 190. Next was to pressurize all 3 and see if I could find 
> a valve leak. There was no apparent leak in the intake or exhaust 
> and the leaking air in the crank case seemed to be the same for all 
> 3 cylinders.
>
>    I put the linkage, spark plugs & wires back as they were and 
> decided to run the engine. Sure enough on initial start up the left 
> side still pumps cool exhaust while the right side was warm . After 
> it warmed up a little the left bank was definitely not as hot as 
> the right bank and the exhaust still had a misfire sound on the 
> left bank and smelled rich.
>
>    I then discovered that when I checked with the timing light on 2 
> & 6 that there was a steady pulse. However #4 had a steady pulse 
> only near the distributor and an interrupted pulse near the spark 
> plug. It obviously was not firing all the time. What the heck is up with that?
>
>    The wires are brand new 7 mm from reputable vendor. Is there a 
> possibility the wire is broken internally? The plugs are also new r44.
>
>    I'll try a used spark plug wire and spark plug and check the 
> distributor cap for a crack or any carbon tracking, but it too is 
> new to suspect that yet.
>
>    I wont hold the #4 spark plug wire to see if it is leaking 
> voltage! All the spark plug wires are separated with plastic wire looms.
>
>    Does anybody have a better suggestion? Comments?
>
>
>MIKE KOVACS
>///////////////////////////////////////////////////////

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