joesb,
it sounds to me like there is something in that cylinder.
If the rod is bent,then the piston will not come up as far,so it would'nt be hitting the plug.
I would not run it any more and would bring it to a shop to have them look in the cylinder with a borescope to see if anything is in there.If you keep running it,it may cause serious damage.
Brian.
__________________
Mercedes Benz Master Tech
ASE Master Technician
Diagnostic Technician
Owner of "Behind the Star Inc."
Raleigh NC.
www.behindthestar.com
brian@behindthestar.com
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