346xp rebuild

[jackdaw]

Evening all.

Looking to replaced & fit a new cylinder/pistol kit to my 346xp, grey clutch cover version . Seems to be 44mm bore judging by the id marks.

Any recommendations for a decent supplier ? 

 

 

Edited October 5 by jackdaw
More pic

[spudulike]

The silverside bore is 44.3mm. what is wrong with the cylinder? You may get a good result just fitting a new piston.

OEM, Meteor, Hyway in that order are best.

[Bob The Dog]

Rebuilt my 346xp (2013 with grey clutch cover) a couple of years ago using a Meteor cylinder and piston. Ordered from Garden Hire Spares online as L&S Engineers only had genuine items at a fair bit more money. It’s done a fair bit of work on the Meteor kit and runs really well. Good luck 👍

[jackdaw]

Hi Spud, 

 

The saw was increasingly hard to restart once hot, eventually to the point it refused too. Not great compression & just didn't sound right on pull over at that point, bit clunky.

 

Stripped it down and the piston is scored badly on the exhaust side & the ring almost fused in the slot on 1 side.

 

The cylinder doesn't look as bad to be fair.

Edited October 5 by jackdaw

[openspaceman]

That may be aluminium pick up stuck on the nikasil rather than scores through it. Worth cleaning up chemically and a light hone before condemning it. My 346 arrived back like that and is now my goto saw.

[jackdaw]

Thanks for the info, I'll take a closer look.

[spudulike]

I missed the response, as previously mentioned, if the plating is not scored through, clean the bore up chemically, abrade the oxide off, lightly hone/rub the bore with wet and dry and then fit a new piston.

Just be aware that the OEM bore is an odd 44.3mm so the replacement piston needs to be the same and not 44mm or 45mm.