New guy from slovenia with ms500i problem

[alaznik1990]

Hey guys I'm new from slovenia thank you for accepting me in your community.
I have a question I havejust taken apart my Stihl ms500i for inspection and through cleaning and have come to this problem there are two scratches or chips on my cylinder do you thing is it worth sanding out and putting an aftermarket pistion in it to get a little life out of it I can feel them with my fingers .The saw ran normally and had really good compression didn't notice any difference I ran husky xp oil in it.
Thank you for your answers in advance

 

[Piotr Pakuła]

how much oil are you putting in?

 

[alaznik1990]

how much oil are you putting in?

Standard 1:50 ratio
Thnx for the fast reply

 

[Piotr Pakuła]

Then you have the answer it doesn't pour less than 1:40

 

[Piotr Pakuła]

1:50 is grist to the mill for the seller and service that Epa favors

 

[Piotr Pakuła]

Add to this the condition of the chain hard wood and the time of continuous operation. The ambient temperature also has an effect

 

[Piotr Pakuła]

Are there any marks on the piston surface?

 

[alaznik1990]

Are there any marks on the piston surface?

Yes they are not on the rings and the rings move freely. Can make a pic when a get home

 

[Piotr Pakuła]

That's why it works properly because the compression hasn't suffered yet, you're lucky too

 

[Piotr Pakuła]

respect that you take off the cylinder for no apparent reason because it does not happen to me

 

[alaznik1990]

respect that you take off the cylinder for no apparent reason because it does not happen to me

Hey thanks man you are awesome
I have taken the cylinder off because I am going to clean the saw really god In the parts washer. I can get new OEM cylinder and piston for 280€ what do you suggest.

 

[Piotr Pakuła]

I would not go into the costs without necessity / I had much more damage without replacement, which still works and is historic

 

[alaznik1990]

I would not go into the costs without necessity / I had much more damage without replacement, which still works and is historic

Then I will order an aftermarket piston and polish the scratches as best es possible and run the saw I can still order the OEM kit if necessary,thank you for the help

 

[alaznik1990]

Then you have the answer it doesn't pour less than 1:40

Should I make 1:40 mix for Al of my chainsaws?

 

[Piotr Pakuła]

Certainly better / except for catalysts, although I'm not sure

 

[Lawless]

Should I make 1:40 mix for Al of my chainsaws?

What oil are you running?

32:1 is probably the best power and longevity.

 

[Tomos770]

If you want to deviate away from dealers Husky xp oil (high price)...

Btw dont buy stihl ultra....its sh....oil

You can also buy oils on mimovrste Motul 710.....Elf moto 2tech....Shell advance ultra can be had for less then 15euros/L

Motornaolja.com has also cheap Mobil1 2t racing....

 

[SteveSr]

Hey guys I'm new from slovenia thank you for accepting me in your community.
I have a question I havejust taken apart my Stihl ms500i for inspection and through cleaning and have come to this problem there are two scratches or chips on my cylinder do you thing is it worth sanding out and putting an aftermarket pistion in it to get a little life out of it I can feel them with my fingers .The saw ran normally and had really good compression didn't notice any difference I ran husky xp oil in it.
Thank you for your answers in advance

Is that missing cylinder plating or aluminum transfer from the piston?

All transfer MUST be removed from the cylinder before reassembly. There are plenty of threads on here how to do it... without acid since you are right next to a port.

 

[alaznik1990]

I will be updating

Is that missing cylinder plating or aluminum transfer from the piston?

All transfer MUST be removed from the cylinder before reassembly. There are plenty of threads on here how to do it... without acid since you are right next to a port.

Hey Steve that's missing plating.

 

[alaznik1990]

If you want to deviate away from dealers Husky xp oil (high price)...

Btw dont buy stihl ultra....its sh....oil

You can also buy oils on mimovrste Motul 710.....Elf moto 2tech....Shell advance ultra can be had for less then 15euros/L

Motornaolja.com has also cheap Mobil1 2t racing....

Hey Tomos thank you for the reply, I will be definitely buying that oil.