re. 8 tooth rim sprocket

danschweitzer

Well I upgraded to an 8 tooth rim sprocket on my 026 and gues what I needed an extra drive link in those chains. I now have an ms 361 and after doing a simple sharks gill muffler mod I went to an 8 tooth rim sprocket with this saw aswell. With a 16" bar I got chain orderd with an extra drive link its fine. I want to run a 13" bar on this saw for snedding as this is what uses most my energy uneaven terain and so on. I asked a dealer and although he was nt 100% sure he recond I could get a standard 50 drive link chain on this bar. I have my doubts does any one know for sure.

SawTroll

Stihl has stated in their catalogs that you need an extra dl when using an 8 or 9-pin on a 15 or 16" bar in .325, so that should be no surprice, at least not to a Stihl dealer.
They have not stated the same about 3/8" chain on the MS361.

There really are no firm rules regarding this, that apply to all saw model/bar length combinations.

I can use standard length chain with 15" and 18" bars and 3/8x8 on my 361, and with 16" bars and .325x8 on my 346xp and 5100S.

Cut4fun

OK no .325 chain on my stihls. Only time I have had to add a extra link was on 3/8 chain on a 21" 084 75dl when I went to a 9T rim, then had to go 76dl.

danschweitzer

Well cheers guys I went on his addvice any way and got the 50 d link chains ordered so hope they ll squeeze in if not a couple of tanks with the 7 tooth rim ll strech it suficiently I would of thought. Was on .325 15" bar where I had those initial probs with the bar hitting the cog on an 026. I m sure it should squeeze in there on this 3/8 ms 361 chain

danschweitzer

Well I recieved my new 13" bar with 2 50dl chain loops. They just go on with 2mm to spare before the bar would be touching the drive sprocket. So they do fit. Wish I d of realised that they (the chains) dont all need an extra drive link when running an 8 tooth rim sprocket because I dont like the extra distance you get between the cutters when you add an extra drive link that one is always a little blunter than the others when it comes to sharpening the chain. Every day gives a little more knowlege .

Willard Holmen

as long as the oil hole matches up your good to go. Less distance between the bar's tail and drive sprocket is a good thing. You should never derail that chain and will have less wear on the bar's tail rails.

Willard.

superfire

I agree the tail spacing to the rim is where you need to pay close attention. As the chain gets stretched to to its final overall length the added link will increase the potenial throwing of the chain. From my exsperience 8 tooth on any saw less then 60 cc and running a bar less then 24" is ok. 8 tooth on any saw bigger then 60 cc is more trouble then it is worth. I use an 8 tooth on my stihl M 460 with a 36" bar and semi skip chain and it works fine, prefer the 7 tooth for most cutting .

danschweitzer

Well I changed my on line suplyer for the purchace of this bar and am glad cause the other one was a semie know what you mean resonably decent suplyer but low on knowlege this is why I had 2 loops sent for the 16 " bar with an extra drive link. Yes the gap is getting bigger. The gap on the 13" bar 8 tooth rim sprocket and normal 50 drive link chain has now got about 10-15mm gap and is fine.

wrebelmachine

A little of the subject but has anyone used the 325 9 tooth on there 361 or something like it?

Cut4fun

325 9T would be about the same size as the 3/8 8T.

Willard Holmen

The .325- 9pin is about 1/16" diameter larger then the 3/8"8-pin. Still very close in size.
A Stihl 361 stock would be a little underpowered for the 9 pin. I have used .325-9 pin on 70cc plus saws in the past and work very well in smaller timber. Also excellent for chainsaw mills,I have used .325 Stihl chain and Oregon 9 pin standard spline rim on my Stihl 090 -36" alaskan mill and it takes a beating.

Willard.

wrebelmachine

I had one on a old Sachs Dolmar 114 and did not like it. But I just switched it to a 16" bar with the 9 tooth and it works pretty good. The saw originally had a 3/8 8 tooth on it with a 18" and I tried it with the 9 tooth 325 with a 20" and it just did not seem to clear the chips out like it should however with the 16" on it seems to be clearing just fine.

SawTroll

I have not done it, but know it has been done with woods ported saws, with good results - and Stihl list it as an option in the user manual, along with 3/8"x7 and 3/8"x8.

jaiby77

i would like to get an 8tooth rim sprocket for my husky 445 with 16" bar,have spent a fair bit of time looking on the internet and found no reference to them.any help would appreciated.

danschweitzer

Dont know much about huskis but I would get in touch with a dealer or someone who does know and if you find one I would try to squeez a normal length chain on before getting an extra drive link put in the chains. But if your saw's got the grunt you will be pleased. good luck in your search

maurice jr

i have a sthil ms320 20 inch bar i cut firewood with and the saw seems under powered can i change the sprocket to give it more toruqe ?

ScottyAFoster

Yes you can.May be you need to get a new chain type for the wood species being cut. Drop the riders a few thous and then try it after a good sharpening.