o21 stilh help please

[tommync]

got a chainsaw runs good but when cuttng for 30 seconds the chain gets so tight it cuts the engine off. any help or advice.

 

[Fish]

Likely your oiler isn't working as it should

 

[kyle.kipple]

might be a stupid question but would it be possible there is something malfunctioning with the tensioner?

 

[DSS]

Sprocket nose on the bar seizing up?

 

[tommync]

Sprocket nose on the bar seizing up?

no! after it gets real tight . i take the side cover back off and put it back to gether and ajust the chain and it works find for few sec . maybe something going on with the ajuster. can it thighten by it shelf?

 

[Fish]

Take off the bar and chain and run the saw lightly, you should see a steady stream of oil down the side, if not, THERE YOU GO.

 

[Log Splitter]

Severely worn sprocket????

 

[jus2fat]

Maybe something going on with the adjuster. Can it tighten by it self?

It can't "tighten itself" if you have the clutch cover on tight..!!

I suspect it's the oiler not working !!..or..a REAL bad drive sprocket..!!

J2F

 

[JustinM]

Most likely cause: not enough oil (either oiler not working, not full - or possibly oil hole plugged: Ive seen this happen a few times on this saw, its got a very small oiler hole).


Less likely, but something I saw once with the exact same problem: You're using a Bar & Chain that match your sprocket, right? I saw someone with a .325 sprocket and he put a 3/8" bar and chain on there. Saw would (amazingly) cut ok for a short period but soon lock up (thankfully for him - as we were able to figure out the problem before he could damage his engine!)

 

[Fish]

might be a stupid question but would it be possible there is something malfunctioning with the tensioner?

No, the OP was likely wearing socks that didn't match.....

 

[jus2fat]

Most likely cause: not enough oil (either oiler not working, not full - or possibly oil hole plugged: Ive seen this happen a few times on this saw, its got a very small oiler hole).
Less likely, but something I saw once with the exact same problem: You're using a Bar & Chain that match your sprocket, right? I saw someone with a .325 sprocket and he put a 3/8" bar and chain on there. Saw would (amazingly) cut ok for a short period but soon lock up (thankfully for him - as we were able to figure out the problem before he could damage his engine!)

Great post..!! I hadn't even thought of that..!! ::thumbsup::

I'm thinking that's it..!! He takes the clutch cover off - or - loosens chain - then re-tightens

Then it locks up again in 30 seconds..!! Sure sounds like it to me..!!

J2F

 

[Fish]

Great post..!! I hadn't even thought of that..!! ::thumbsup::

I'm thinking that's it..!! He takes the clutch cover off - or - loosens chain - then re-tightens

Then it locks up again in 30 seconds..!! Sure sounds like it to me..!!

J2F

no, definitely the sock thing!!!!

 

[Whiskers]

If the chain matches the pitch of the sprocket, the oiler works, and still no luck, i'd take a look at the drive links also. Unlikely, but if they are worn bad, or damaged, they might be causing your binding issue.

 

[DSS]

No, the OP was likely wearing socks that didn't match.....

Good point.

 

[tommync]

Good point.

thanks yall. just got back from church. i will look over the saw some more tomorrow. lots of good ideals.