Omega Owners Forum

Chat Area => General Discussion Area => Topic started by: Field Marshal Dr. Opti on 10 February 2022, 15:21:38

Title: Chainsaw chain problem.
Post by: Field Marshal Dr. Opti on 10 February 2022, 15:21:38
The chain is manufactured by Oregon and relatively new.

My problem is that I can't get an even tension on the chain when I move it by hand with the brake off.

It has distinct loose and tight spots ranging from a few mm to around an inch.

Is the chain already f*ucked or could there be other reasons?......bent bar?...worn sprocket?
Title: Re: Chainsaw chain problem.
Post by: Field Marshal Dr. Opti on 10 February 2022, 15:22:26
58cc 2 stroke lump of Chinky origin.
Title: Re: Chainsaw chain problem.
Post by: ronnyd on 10 February 2022, 16:11:26
You've probably answered your own question.  :)
Title: Re: Chainsaw chain problem.
Post by: STEMO on 10 February 2022, 16:46:43
Just fire it up and set to work. What could possibly go wrong?
Title: Re: Chainsaw chain problem.
Post by: Field Marshal Dr. Opti on 10 February 2022, 16:52:23
Just fire it up and set to work. What could possibly go wrong?

I have.

After 5 minutes of cutting the chain is slack as the tits and fanny of a 45 year old woman who has just popped out her seventh sprog....if you get the idea. :)
Title: Re: Chainsaw chain problem.
Post by: redelitev6 on 10 February 2022, 17:04:12
Sounds like it's well shagged , and the chain doesn't sound too good either  :y
Title: Re: Chainsaw chain problem.
Post by: Lizzie Zoom on 10 February 2022, 17:45:51
All sounds very dangerous to me! :o :o :o

I have never had any desire to pick up one of those limb amputaters! :o :o ;)
Title: Re: Chainsaw chain problem.
Post by: Marks DTM Calib on 10 February 2022, 18:10:01
Is the chain oiler working properly?
Title: Re: Chainsaw chain problem.
Post by: YZ250 on 10 February 2022, 18:13:18
How are you adjusting the chain, not just by pulling the bar out and tightening the casing nut I assume. The bar has just a guide groove, so has no influence on varying tightness. You adjust the tension using the adjustment screw under the chain, so that each rotation is the same degree of movement but I have seen the adjustment screw not set correctly, which allows the tension of the bar to shift during manual rotation.
I'll bet the adjustment screw isn't set correctly.  :y
Title: Re: Chainsaw chain problem.
Post by: Field Marshal Dr. Opti on 10 February 2022, 18:32:36
Is the chain oiler working properly?

Plenty of lube from what I can see. :y
Title: Re: Chainsaw chain problem.
Post by: Field Marshal Dr. Opti on 10 February 2022, 18:39:57
How are you adjusting the chain, not just by pulling the bar out and tightening the casing nut I assume. The bar has just a guide groove, so has no influence on varying tightness. You adjust the tension using the adjustment screw under the chain, so that each rotation is the same degree of movement but I have seen the adjustment screw not set correctly, which allows the tension of the bar to shift during manual rotation.
I'll bet the adjustment screw isn't set correctly.  :y

I am using this. At the moment I have removed the bar, chain, and  chain tension screw tension mechanism. They were covered in a combination of oil and sawdust but seem free enough.

I'll put it back together and see if I can get the tension to be more even.

The bar itself seems to be flat, straight, and in reasonable condition, without too much wear.
Title: Re: Chainsaw chain problem.
Post by: Marks DTM Calib on 14 February 2022, 09:24:51
So the usual is the oiler, it gets blocked up with saw dust.

What then happens is the chain gets hot (made worse if its not sharp), expands and appears loose after some use (tends to recover as it cools).

The oiler should be chucking out quite a bit of oil, this helps cool the chain as well as lube it.

I would start by sharpening the chain well, check the oil passages (particularly in the chain bar), clean it well, adjust it all up, and having another go
Title: Re: Chainsaw chain problem.
Post by: ronnyd on 14 February 2022, 15:53:26
With all your supposed wealth, just get man in who has a real chainsaw and pay him with some of your groats.  ;)
Title: Re: Chainsaw chain problem.
Post by: STEMO on 14 February 2022, 16:56:36
With all your supposed wealth, just get man in who has a real chainsaw and pay him with some of your groats.  ;)
He acquired his wealth by being a tight barsteward.
Title: Re: Chainsaw chain problem.
Post by: Doctor Gollum on 14 February 2022, 17:13:17
Not sure that a tree surgeon would want his groats...  :-\
Title: Re: Chainsaw chain problem.
Post by: Sir Tigger KC on 14 February 2022, 18:19:39
I think he has little groats dotted all over Lincolnshire!  :)
Title: Re: Chainsaw chain problem.
Post by: Andy B on 14 February 2022, 18:40:51
With all your supposed wealth, just get man in who has a real chainsaw and  ....

That was my thinking .... far easier & safer all round  ;) ;)
Title: Re: Chainsaw chain problem.
Post by: Kevin Wood on 14 February 2022, 21:25:12
So the usual is the oiler, it gets blocked up with saw dust.

What then happens is the chain gets hot (made worse if its not sharp), expands and appears loose after some use (tends to recover as it cools).

The oiler should be chucking out quite a bit of oil, this helps cool the chain as well as lube it.

I would start by sharpening the chain well, check the oil passages (particularly in the chain bar), clean it well, adjust it all up, and having another go

Yep, run it in bright sunlight and if you can't see a generous mist of oil coming off the chain it's not oiling enough.