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Stihl 029 unwanted chain tightening


 
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TylerFarmallH
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Joined: 06 May 2012
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PostPosted: Sat Nov 10, 2012 4:09 pm    Post subject: Stihl 029 unwanted chain tightening Reply to specific post Reply with quote

Hey Guys,

I have a stihl 029 saw, the chain is tightening after about 4-6 cuts and I have do dissamble the bar and chain and re adjust. I have replaced the bearing and sprocket and still no change. The bar and chain look fine but I guess I'll replace that next? any thoughts?
 
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Zachary Hoyt
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PostPosted: Sat Nov 10, 2012 4:13 pm    Post subject: Re: Stihl 029 unwanted chain tightening Reply to specific post Reply with quote

Does your saw have a screw to adjust tension or is it one of those
new auto-tension devices?
Zach
 
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TylerFarmallH
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PostPosted: Sat Nov 10, 2012 4:15 pm    Post subject: Re: Stihl 029 unwanted chain tightening Reply to specific post Reply with quote


It has a screw so I will adjust it to pull loose but still in bar and after some cuts it has no slack at all.
 
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oldhippy
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PostPosted: Sat Nov 10, 2012 6:02 pm    Post subject: Re: Stihl 029 unwanted chain tightening Reply to specific post Reply with quote

your oiler isnt working right
 
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t.r.k.
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PostPosted: Sat Nov 10, 2012 7:04 pm    Post subject: Re: Stihl 029 unwanted chain tightening Reply to specific post Reply with quote

I think your oiler is not working too.

Our old McCullochs used to do that a lot, but it was insufficient oil, the bar would overheat and expand, binding the chain.
 
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Zachary Hoyt
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PostPosted: Sat Nov 10, 2012 7:21 pm    Post subject: Re: Stihl 029 unwanted chain tightening Reply to specific post Reply with quote

To check if it is getting oil point the bar at a cut log end or other
white surface and run at full speed. Within 5 seconds you should
start to see oil splatter, within 15 seconds you should have a nice
dark line of oil.
Zach
 
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Jack345
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PostPosted: Sat Nov 10, 2012 8:42 pm    Post subject: Re: Stihl 029 unwanted chain tightening Reply to specific post Reply with quote

On bottom of saw you will see a hole for adjusting oil flow-arrow points to direction of max flow.
1.Adjust for max flow (check manual)
2.With bar and chain off saw start saw rev up and and you should have oil flow.If not check oil pump.
3.Make sure clutch drum is in place when running engine.Clutch drum drives oil pump ( the long wire fits in the notch on clutch drum which drives oil pump.Oil pumps do go bad.
4.If you have oil the bar oil port hole could be plugged.Clean.
 
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onefarmer
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PostPosted: Sat Nov 10, 2012 10:40 pm    Post subject: Re: Stihl 029 unwanted chain tightening Reply to specific post Reply with quote

When I saw the title of this post I was going to say the sprocket needs replaced. But you say that was done. So I'm thinking lack of lube.
 
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timcasbolt
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PostPosted: Sun Nov 11, 2012 1:00 am    Post subject: Re: Stihl 029 unwanted chain tightening Reply to specific post Reply with quote

Yea, no doubt about it, you've got an oiling problem.
 
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36 Coupe
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PostPosted: Sun Nov 11, 2012 1:37 am    Post subject: Re: Stihl 029 unwanted chain tightening Reply to specific post Reply with quote

Take the bar and chain off and check oil flow.Why would you replace the bar and chain?Did you put oil in the oil tank?
 
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Bret4207
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PostPosted: Sun Nov 11, 2012 4:51 am    Post subject: Re: Stihl 029 unwanted chain tightening Reply to specific post Reply with quote

Okay, how are you adjusting the chain? You say, "the chain is tightening after about 4-6 cuts and I have do dissamble the bar and chain and re adjust." Are you taking the saw apart to adjust the chain? All you do is loosen the bar nuts slightly, just enough to let the bar move a tiny bit, PULL UP ON THE BAR and adjust so the chain is properly tightened. If you pull up n the bar and adjust so the chain is free moving but with no real slack you should be good to go. I've seen a lot of rigs with the chain running way too loose and way too tight. And if you don't pull up on the bar a bit and tighten the bar nuts good it'll move on you. It'll get tighter if you didn't pull up on the bar and get the nuts tight.

Also, if all this is correctly done and you still have the issue it can certainly be oiling. Some times you need to enlarge the oil hole in the bar a size or 2. And you are cleaning the bar groove and oil hole, right? All common issues.
 
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Ellis Kinney
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PostPosted: Sun Nov 11, 2012 2:08 pm    Post subject: Re: Stihl 029 unwanted chain tightening Reply to specific post Reply with quote

Most chain saws also have a small hole to grease the roller nose. Ellis
 
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TylerFarmallH
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PostPosted: Sun Nov 11, 2012 2:49 pm    Post subject: Re: Stihl 029 unwanted chain tightening Reply to specific post Reply with quote

Ellis Kinney wrote:
(quoted from post at 15:08:41 11/11/12) Most chain saws also have a small hole to grease the roller nose. Ellis


The oiler hole on the bar was clogged and a spring that turned the clutch that spun the oil pump was broke. Gonna had to take it in. Thanks guys
 
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