I know what is wrong with the saw, do you???

[bama]

Jonsered 621. 195 lbs. of compression. Runs decent. Pulled the bar/chain and noticed these marks on the sprocket. What bad thing has happened?
Who will be the first to get it right?

P.S. I am NOT talking about the wear marks from the chain!!

 

[Rookie1]

Wrong pitch chain.

 

[Fish]

Jonsered 621. 195 lbs. of compression. Runs decent. Pulled the bar/chain and noticed these marks on the sprocket. What bad thing has happened?
Who will be the first to get it right?

P.S. I am NOT talking about the wear marks from the chain!!

You should have bought a "Stihl???"

 

[Mr. Bow Saw]

The bearing wore out.

 

[bama]

Wrong pitch chain.

Nope. .058 3/8 chain.

You should have bought a "Stihl???"

I have read of the same problem with a few Stihl's on this forum. Besides, Black and Red is where it's at, man.

 

[bama]

The bearing wore out.

Can you be more specific? Can't let the thread end too early.

 

[jra1100]

OK I'll bite. My WAG (wild azz guess) is that the chain was on backward. JR

 

[bama]

OK I'll bite. My WAG (wild azz guess) is that the chain was on backward. JR

MAybe at some point in this saw's life, but it didn't cause this problem.

 

[Fronty Owner]

I would guess, you had crap between your bar and the power head causing the bar to be offset pulling the chain off into your sprocket.

 

[bama]

I would guess, you had crap between your bar and the power head causing the bar to be offset pulling the chain off into your sprocket.

Good try, but no joy.

 

[Hddnis]

My WAG (Wise Accurate Guess) is that the clip and washer came off and the chain was holding the whole thing on.




Mr. HE

 

[THALL10326]

Jonsered 621. 195 lbs. of compression. Runs decent. Pulled the bar/chain and noticed these marks on the sprocket. What bad thing has happened?
Who will be the first to get it right?

P.S. I am NOT talking about the wear marks from the chain!!

Looks like the sprocket is coming apart...

 

[AUSSIE1]

My guess is the circlip fell off causing the hub to float looks like rivet ware.

 

[bama]

My WAG (Wise Accurate Guess) is that the clip and washer came off and the chain was holding the whole thing on.



Mr. HE

Nope.

 

[bama]

My guess is the circlip fell off causing the hub to float looks like rivet ware.

Nope. Yes, there is rivet wear.

Looks like the sprocket is coming apart...

Yes, but the sprocket is a SYMPTOM. You might not have even picked this problem up if it was a replaceable rim.

 

[Scooterbum]

Somebody was shooting at it with Daisey 22 cal. pellets???????

 

[THALL10326]

Nope. Yes, there is rivet wear.



Yes, but the sprocket is a SYMPTOM. You might not have even picked this problem up if it was a replaceable rim.

Has the center busted loose from the drum?

 

[bama]

Somebody was shooting at it with Daisey 22 cal. pellets???????

We "Jonny lovers" save that treatment for the competition.

 

[bama]

Has the center busted loose from the drum?

Nope. But, it is starting to separate. Still attached at the center. Remember, Tom, the sprocket is a symptom.

 

[Scooterbum]

Roached out crank bearings.