Stihl MS 661 32" bar size maximum?

[tamarack56]

This has more HP than than the 660, why would they limit it to a 32" maximum size? I own a 441 and it has no troubles running a 32 with only 71cc vs 92cc's. It seems to me there is need for a saw between the 880 and 660 that has about 102cc's and could run a 41" bar.

 

[Roll Tide]

32" bar on a 441

 

[mdavlee]

Some are running 42" on the 661. It has a better oiler than the 660. I've run 32-34" on 440 and 460s.

 

[Roll Tide]

No thank you.

 

[redoakman]

On the west coast they can run longer bars beaucse softer wood with skip chains u don't see that offten in hard wood country

 

[Roll Tide]

I wouldn't be worried about running a larger than recomended bar on your 661 it'll be fine. Your obviously not worried about it on the 441.

 

[Time's Standing Stihl]

Hopefully you got the HO oiler on the 441....I tried a 32" on mine at a gtg before I got it ported. No thanks....

 

[Trx250r180]

32" bar on a 441

Whats wrong with a 32 ?

 

[Roll Tide]

Whats wrong with a 32 ?
View attachment 411802

The oiler on a 441 barely oils a 28" and I wasn't much more impressed with the HO oiler. Looks like those 32" have seen a lot of time on a saw haha. I don't see one 441 in that pic.

 

[Trx250r180]

The oiler on a 441 barely oils a 28" and I wasn't much more impressed with the HO oiler. Looks like those 32" have seen a lot of time on a saw haha. I don't see one 441 in that pic.

What guage chain do you run ?I have run a 32 on 70cc saws for years as do most of the other guys around my area ,what works out here ,and what works there are 2 different things ,i guess the bars being new at the time means they would not cut or oil ok ? The 441 should have the same oiler as my 461 or 660 ,with a .063 guage bar they oil fine as does the 440's with a reg oiler .050 is useless on a long bar in my opinion ,burns the rails fast due to lack of oil .

 

[mdavlee]

Short bars any way[emoji41]

 

[Roll Tide]

I forget yall have mostly softwoods out there. My 441 would have a 25" on it. If I had a 28" I would have run it. I run a 32"+on my 395.

 

[Roll Tide]

Short bars any way[emoji41]
View attachment 411833

Piltz kit I see haha

 

[Haywire Haywood]

What guage chain do you run ?I have run a 32 on 70cc saws for years as do most of the other guys around my area ,what works out here ,and what works there are 2 different things ,i guess the bars being new at the time means they would not cut or oil ok ? The 441 should have the same oiler as my 461 or 660 ,with a .063 guage bar they oil fine as does the 440's with a reg oiler .050 is useless on a long bar in my opinion ,burns the rails fast due to lack of oil .

Can't see how .013" in rail width affects how much oil it pumps. It's not like it's going to build up and run over inside the clutch cover instead of getting stripped off on the links as they go past the oiler hole.

 

[rwoods]

If Brian says a .063 gauge makes a difference, I would believe him. Others have said the same. Don't know myself but if my math is correct an .063 groove will carry 25% more oil so maybe that extra volume being sweep along is enough to lube to the end of the bar. As I said I don't know. Ron

 

[Haywire Haywood]

If the rail were empty, maybe so, but it's full of drive link and the pump output is the same regardless. In truth I don't know either. Just doesn't seem logical to me.

 

[Roll Tide]

.063 gauge bar = .063 gauge chain. Explain how there is anymore room in the channel of a .063 gauge bar when it has a larger chain running thru it? Doesn't make much sense.

 

[mdavlee]

The wider dl can push more oil to the end. It makes a difference in oiling. I've almost switched to all .063" gauge bars because of it.

 

[HuskStihl]

Uhhh......0.063 is a larger number than 0.050. Therefore, it must be better in every way.

 

[stihlaficionado]

The wider dl can push more oil to the end. It makes a difference in oiling. I've almost switched to all .063" gauge bars because of it.

Why do folks run a .050 gauge on a 36" bar…seems odd