"...I noticed one day while revving the engine after putting the plug wire back on, I
was leaning over the engine and *POP* the plug wire shot off. I've tried using a
little dielectric silicon grease and that
worked for 3 days. It seam to stay on fine if the engine doesn't go over 4500 rpm..."
Ben, I would have to say it sounds like compression gasses are leaking past your
spark plug some how, and blowing your plug wire right off. I've never actually heard
of this before, but it sounds like that is the cause based on what you describe.
You're right, combustion gases in the valve cover would be vented by the PCV valve
(assuming it's not clogged), but the gasses that seem to be dislodging your plug wire
is the actual compressed gas in the cylinder, getting forced around, or through your
spark plug. My guess is you're getting little to no "work" out of that cylinder, and
if you listened you'd probably hear a "hiss" coming from that cylinder every time the
piston hits TDC. I would look in to the sparkplug, or even worse a cracked head.
Just my 2 cents. L8r, ---Seth
