Hi Guys I need a little help with this one, A friend has brought me a Stihl 010AV saw which they can't get started. It had me baffled for a while until I checked the compression (less then 50psi) I have pulled the head off and as I suspected the piston has suffered an impact and the ring is seized. But before I start trying to find a piston, I need a little assistance with what I would call the big end bearing. The bearing that connects the crank shaft to the con rod. When I moved the con rod all the needles feel out. What I was wondering is was it manufactured like that, or should it be as I would have expected with two caged shells holding the needles in place. I suppose I could find some sticky grease and reassemble if I am sure I have all the needles but I am a little skeptical that it would be right. There is no trace of a bearing shell but possibly that is what has scoured the piston on the way out. Has any come accross an assembly like this before or is it just really busted. Thanks for your help.
If I can get a large enough hammer it will run for awhile just trying to get away from me
