... a drop or two to the piston skirt and assemble... imo, I would call that dry assembly...
I'll attempt to educate you since you are "not a chainsaw engine builder". I mentioned a couple or drops on the rings and a light coating of oil on the piston and cylinder such that its not dry. Excessive amounts of oil will do no good and can contribute to additional carbon build-up.
...nobody said scuff the piston rings... can u please quote me where I said scuff?....
You said;
I would not hesitate to run some 600 grit w/dry paper longitudinally using gasoline only as a cutting agent. lightly, just to scrub things up. not to hone! this assumes for next run, same rings. if it was mine and I did scrub cyl once precleaned or carbon and any grits in there, they will all have them... once taken apart... I would not have a problem lightly running the 600 across the face of the rings. I said lightly... and not to remove metal, merely to lightly upset them a skosh. remember, this is my approach, not joes toms or bills, lol who are they?
So, Who are you? Oh yeah, "not a chainsaw engine builder". Which is evident when you suggested "scrub things up", like not removing rings because they bend too easy, running an abrasive across the face of the rings and run the abrasive longitudinally in the cylinder... Must be you've never heard of cross hatch eh?
Here's a thought, the rings are already seated to the cylinder, there is no break-in if he doesn't replace them. Putting an abrasive across the ring face is not going to improve the sealing capability of the ring, it only potentially damages it.
so, I wont take ur comments personally
but will say... more misinformation... imo
Yes, the majority (and quantity!) coming from you.
...of course there is plenty wrong with the piston!!!... it is shedding aluminum and pitting... its clearly there in the pix... not to mention worn skirts...
It has
some wear, nothing to write home about. 150 hours on a saw is not new but its not at end of life either. As mentioned earlier, dirty air filter could explain the marks in the piston. The skirt is fine. Like you said, some things are being overly exaggerated. Especially the details you suggest the OP needs to get the saw back running.
haha, cute again! don't say nothing about sandpaper, now does it! says wet/dry and ck the grit... wet/dry is not sandpaper. it is wet/dry... scrub is not sanding! lightly running is not sanding... I know u know what skosh is...
Skosh : The very smallest unit of fake measure, smaller than both the smidge and the tad.
Any time you contact an abrasive to a material the material is abraded away (removed). Why someone would recommend "scrubbing" the sealing surface of a piston ring a "skosh" doesn't get it.
btw - if you want to attend my engine builder's engine building class... I will ck with admin... and get u a seat comp!
an industry courtesy...
No thanks, I'm good. Good luck with your final exam, you better start studying early, you don't want to have to repeat the class.
