What oil is best? and what ratio?

[big t double]

441 just locked up..... I think something bottom end came up through. Was cutting some some 18 inch cherry and all of a sudden she just quit. Chain was sharp as can be, good self feeding. Non ethanol fuel, and running GP7 at 32:1

A little pissed but it is what it is I guess. Tearing down in about 15 mins.

She would turn over then all of a sudden she locked solid. I don't think it is an oil issue, probably just luck of the draw.

That sucks. Shoulda used walmart oil.

 

[wildroamer]

Looking at the Sten's Full synthetic, I see petroleum under both "lubricating oil" and "distillates." That doesn't sound synthetic to me. Anyone care to enlighten me?

 

[Deets066]

I'd take a good ass whoopin before I bought anything at Walmart

Best answer?

 

[Redbull661]

can we burn sh*t and drink beer yet???

sorry deeter i'd have to vote this as best answer! of course I'm biased...to burning sh*t and drinking beer!

 

[Deets066]

sorry deeter i'd have to vote this as best answer!

It's close

 

[CR500]

Sorry to hear that! What kinda oil is gp7?

Made by Torco


Well the good news is that the crank spins free, and the oil inside the saw did it's job lubricating for the past countless tanks. There is plenty of oil on the skirt and crank.

Pulled the muffler and noted that the top ring was gone out of it's groove.

The dowel pin on the rear of the piston has disappeared and it appears that the top ring snagged a couple of ports.

looked kind of like a cold seize but the saw was running for a good period of time. I wait till the fins are warm to start cutting. Have always done this with no problems in my other saws.


Gonna say that it caught a port.

 

[Keith Gandy]

Made by Torco


Well the good news is that the crank spins free, and the oil inside the saw did it's job lubricating for the past countless tanks. There is plenty of oil on the skirt and crank.

Pulled the muffler and noted that the top ring was gone out of it's groove.

The dowel pin on the rear of the piston has disappeared and it appears that the top ring snagged a couple of ports.

looked kind of like a cold seize but the saw was running for a good period of time. I wait till the fins are warm to start cutting. Have always done this with no problems in my other saws.


Gonna say that it caught a port.

Sounds like u may have just lost the piston pin? The Torco products r suppose to be really good? I hear the octane booster by Torco actually is one of the few that really works

 

[jmssaws]

I've never understood how a locating pin can come out in a running saw,think about it. The cylinder wall should keep a loose one in place. I hear of it happening though.

 

[sawmikaze]

That sucks. Shoulda used walmart oil.

Your boy ran a whole gallon of full synthetic supertech from walmart this weekend through my blower/ hedge trimmers/trimmer and i almost *s-word myself when nothing blew up...i even cut some of my concrete out with my quickie saw too..fukkin 2 stroke oil..lol

 

[PissRev]

Very cool posting those msds sheets @PissRev ! I even see the Sten's Full synthetic I bought!
I just wish I knew what to look for... Been a while since I took chemistry...

You are welcome. Its been 23 years since I've taken chemistry myself but your Stens is made up of group 3 synthetic (hydrocracked) and polyisobutylene. It should be a great oil and not have the acrid smell that some ester base oils have.

 

[big t double]

Your boy ran a whole gallon of full synthetic supertech from walmart this weekend through my blower/ hedge trimmers/trimmer and i almost *s-word myself when nothing blew up...i even cut some of my concrete out with my quickie saw too..fukkin 2 stroke oil..lol

Badass

 

[CR500]

bottom pin came out, not top

 

[jmssaws]

bottom pin came out, not top

Pics?

 

[Deets066]

Your boy ran a whole gallon of full synthetic supertech from walmart this weekend through my blower/ hedge trimmers/trimmer and i almost *s-word myself when nothing blew up...i even cut some of my concrete out with my quickie saw too..fukkin 2 stroke oil..lol

You sir...... Are in need of a good ass whoopin for buyin Chinese chit at Wally World

 

[CR500]

I will have to get the pics squared away tomorrow, had to use a different phone

 

[Deets066]

You could always send the 441 to JMS for fixin.....

 

[jake wells]

i shop at walmart because it is cheaper and also my town has overpriced stores.

 

[Keith Gandy]

I've never understood how a locating pin can come out in a running saw,think about it. The cylinder wall should keep a loose one in place. I hear of it happening though.

What if the pin came loose and worked its way IN and the ring spun and caught a port?

 

[Deets066]

i shop at walmart because it is cheaper and also my town has overpriced stores.

I'm not suprized

 

[Keith Gandy]

Heat may have caused the piston to expand away from the pin and it worked its way in?