<VV> Engine Problem

[J R Read_HML]

I like Matt's answer, but I want to know what the removed plugs looked like 
and if the new ones are showing any sign of oil fouling.  Also, I did not 
see fresh (I'm assuming mechanical) fuel pump on your list.

Later, JR


----- Original Message ----- 
From: "Smitty Smith" <vairologist at verizon.net>
To: <virtualvairs at corvair.org>
Sent: Sunday, July 02, 2006 9:53 PM
Subject: <VV> Engine Problem


>
> Smitty Says:  Ok guys here is another one for you.  (Why do I get all the 
> nutty ones)   Engine has always been quiet and runs strong.  Now at a 
> little over 100K miles.  On the highway at 80 degrees and 60-70 mph it 
> starts missing and backfiring.  Mostly out the tailpipe.  Very ratty and 
> ragged as one would run with bad plugs under full acceleration.  But only 
> when HOT.  Engine shows no signs of overheating.  It has received new 
> plugs, wires, points kit (rotor,condensor etc), cap, coil, points plate 
> and replacement (proper) distributor.  It is not carbs.  If it is not 
> ignition then it has to be mechanical.
>  I have one theory, now lets hear yours.  Last "O" ring job was over 10 
> years ago.  I wonder if something has worn to the point that some of the 
> valves are just barely closing.  Thermal expansion could be causing them 
> to go less than fully closed when the engine is fully hot.  Like I said, 
> lets hear yours.
>  Oh Yeah, I have enjoyed the cow jokes concerning Lon as much as anyone 
> but when he is up and around again I am sure he will get tired of it 
> before the thousandth one is laid on him.  Be considerate.
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