Got my new to me 550xp

[Landmark]

Well after a lot of frustration due to a member of another forum I finally got my 550xp. Reportedly with no pics, the p/c are good but has lost compression. Listed as piston looked good through the muffler port. When I got it I pulled the muffler and sure enough the piston/ring look good but when piston on down stroke I can see scoring over the intake. uh oh. So I pulled it apart about 10.30 last night, and found this. I am not sure the cylinder is even salvageable. Pretty deep score toward the top. This is going to be a more extensive project than I first thought but at least I can list a 550xp in my sig.

 

[Simondo]

Well after a lot of frustration due to a member of another forum I finally got my 550xp. Reportedly with no pics, the p/c are good but has lost compression. Listed as piston looked good through the muffler port. When I got it I pulled the muffler and sure enough the piston/ring look good but when piston on down stroke I can see scoring over the intake. uh oh. So I pulled it apart about 10.30 last night, and found this. I am not sure the cylinder is even salvageable. Pretty deep score toward the top. This is going to be a more extensive project than I first thought but at least I can list a 550xp in my sig.

View attachment 22670 View attachment 22671 View attachment 22672

Ouuuu ! that is not what you wanted to see I'm sure !!
Looks like a proper component failure ...the joint in the ring is in the hole of the intake if Im seeing it right ?

 

[Landmark]

Ouuuu ! that is not what you wanted to see I'm sure !!
Looks like a proper component failure ...the joint in the ring is in the hole of the intake if Im seeing it right ?

yes I believe the pin come out of the piston or something to that effect, and made a mess.

 

[BGE541]

Has that specific issue been addressed? I think a ported 550/555/2260 would be nice. Enjoy your new project

 

[Tor R]

You have to figure out what went wrong Dave before you put in any new parts.
If you have to buy new p&c i think the current price is 115$ for the set.
Is there 2 or 5 year waranty in US?

 

[Landmark]

I am not sure what happened. I will pressure and vac test but something came apart for sure.

 

[paragonbuilder]

Looks like the ring pin loosened


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[paragonbuilder]

Is it still in there? Looks like someone soldered it...


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[CoreyB]

That stinks! Hopefully it won't be to expensive to get it up and screaming.

 

[Landmark]

Is it still in there? Looks like someone soldered it...


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I will look closer when I get home. I think it is gone but will double ck. What would cause this issue. Just a piston pin failure?

 

[Tor R]

I will look closer when I get home. I think it is gone but will double ck. What would cause this issue. Just a piston pin failure?

I never had any scored piston where the ring pin was the reason, but my old dealer say it happen now and then....
Just make sure Dave that there aint any issues in the crank.

Since you first have got yourself a 550XP there isn't a reason why you should'nt end up with an 550XPG, cleaning and shipping on Monday so you have something more to work with

 

[Landmark]

I never had any scored piston where the ring pin was the reason, but my old dealer say it happen now and then....
Just make sure Dave that there aint any issues in the crank.

Since you first have got yourself a 550XP there isn't a reason why you should'nt end up with an 550XPG, cleaning and shipping on Monday so you have something more to work with
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Thanks Tor. This project is getting even better!!

 

[Landmark]

Is it still in there? Looks like someone soldered it...


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Yep its still in there but looks like the end of the ring has broken off and prob caused the damage. Not sure why that would happen

 

[srcarr52]

I never had any scored piston where the ring pin was the reason, but my old dealer say it happen now and then....
Just make sure Dave that there aint any issues in the crank.

Since you first have got yourself a 550XP there isn't a reason why you should'nt end up with an 550XPG, cleaning and shipping on Monday so you have something more to work with
View attachment 22687

Not fair! I though about converting my 562 but they I saw how much they want for the generator... I might as well buy a new saw.

 

[Tor R]

Not fair! I though about converting my 562 but they I saw how much they want for the generator... I might as well buy a new saw.

Husky sure know how to price those nice G parts, doesnt they?
Funny thing with Husky, they don't have global prices, in Sweeden, the homeland to Husky they take 120$ extra for an XPG saw while they take 30$ extra here...

 

[srcarr52]

Husky sure know how to price those nice G parts, doesnt they?
Funny thing with Husky, they don't have global prices, in Sweeden, the homeland to Husky they take 120$ extra for an XPG saw while they take 30$ extra here...

That's because they know your Swedish hands are sensitive to the cold and you all have come to expect heated handles.

 

[Tor R]

Did you got time to study your 550 more Dave?
Currious to know if you found the missing part of the ring.

 

[Landmark]

I did look it over better and didnt find it. I tried to make sure i wasnt in crank case. No signs of it anywhere. I havnt deep cleaned the saw yet so perhaps it will turn up, but not likley.