Chainsaw Repair

Been wanting a 562XP since they came out.  Want a 550 too.  Had a DA moment broke down and bought a low hr. 2012 model on Ebay.  Paid a little too much but that's what impulse buying does.  Saw came UPS with bar attached.  Packing was so good UPS couldn't kill it.  Anyway broke it down for cleaning ( saw was pretty clean).  Pulled muffler to do a MM before starting it.  Piston is scored but not too bad but never the less scored.  My question is WHY is it scored? Saw a 550 that was scored it was on a new one owned by a member of one of the saw forums.  Knowledgeable guy so it wasn't ignorance.  I thought auto tune would take care of the piston scoring issue if you mix oil correctly.  Seller has offered a full or partial refund so that's not an issue.  Went on Jacks last night $284.27 for a P&C ouch.  I need a better price I don't know if the seller will refund more than half of purchase price.  It needs a cyl cover too it's warped from a lick on the top over the AF.  That had to have happened before packing.
Shep

Contact Spike60 for cylinder pricing.
Ashokan Turf & Timber

 

tell him Adirondackstihl sent ya

Straight gassed is supposedly the only thing that will score a piston on an autotune, they say it will correct itself for everything else...

That's what I thought.
Shep

AutoTune cannot adjust for poor or stale fuel.  .
And contrary to popular belief, it also cannot cure cancer

I believe you are right, it dosn't have to be streight gassed.

Most of todays oils meet or exceed manufacturers specs. JASO whatever whatever...etc.etc
Yes, we know you like Redline oil. Just like I prefer Motul.

But most people who spend that kind of money on a 562, aren't heading to the local Go-Go Mart to get outboard oil for their $700-800 saw.

My money is on fuel quality. Not oil quality.
I just took in an EFCO 952 with the beginnings of what could have been a bad ending.
Detonation from stale fuel and a little heat scoring on the piston.