Ms 291 oiler???

[Slacker4]

I bought a ms 291 a month ago and the saw tums great but the bar oil is only half empty. Chain seems dry. My local stihl dealer said that they have turned this oiler way down and it just doesn't use the oil like the old saws. Has anyone else ran into this problem and if so is this normal??


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[Slacker4]

Sorry about my message. Meant to say saw runs great but the oil is only half empty after a tank of gas is gone.


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[griffonks]

Is there an adjustable oiler access on the bottom of the saw like the MS290?

If there is an adjustable oiler is it cranked up all the way?

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[juttree]

We have two of the 291's on our trucks and there is no adjustable oilers on them. They always seem like they aren't getting enough oil. What length bar are you using? We use 18" and even that seems too much for the delivery rate. They run fine and all but their definitely not my first choice in saw to pull out of the truck, mainly because the bars always seem so damn dry. Its possible there is a better oil pump for that saw but I'm really not sure. Maybe someone will come along and answer that question. Sorry I couldn't be more help

 

[juttree]

Also, make sure to keep the oil holes and the bar rail clean.

 

[AKDoug]

No adjustable oiler, no optional oiler either.

 

[Terry Syd]

I don't know how the 291 oil pump is constructed, but I upgraded a 029 pump from .4mm of stroke to .88mm of stroke.
Perhaps there is a piston from another pump (390/391) that would fit. Anyone with some information about such a swap?

 

[Slacker4]

I run an 18" bar as well. It doesn't seem that it hinders the saws performance to me at all but I have never had a saw that the bar and chain look that dry. Love the saw and to me this is the downfall of it.


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[windthrown]

The 029 pump has an adjustable oiler, with a piston and control bolt. The 291 does not... so there is nothing to upgrade or swap out in it.

 

[jdhacker]

I have a 291 and have wore two rs chains back to the marks, and im on the 3rd now. My bar is in great shape and I hardly ever need to adjust chain tension. Im usually 3/4 empty on oil with a tank of gas.

 

[ash man]

My old 029 Super would oil a 20" bar easily. Think we can chalk this one up to the epa to???

 

[lowbudget]

I'm glad someone else noticed this. I got a 291 and was a little worried about it. dealer said it was fine but I wasn't so sure...

 

[AKDoug]

The 029 pump has an adjustable oiler, with a piston and control bolt. The 291 does not... so there is nothing to upgrade or swap out in it.

Have you pulled one apart? I'll take a look today, but they sure don't look interchangeable.

 

[lowbudget]

I have a 291 and have wore two rs chains back to the marks, and im on the 3rd now. My bar is in great shape and I hardly ever need to adjust chain tension. Im usually 3/4 empty on oil with a tank of gas.

so I think you're saying you think it's getting enough oil, right?..

 

[jdhacker]

Unless you have a problem I would say your saw is fine. Some people get use to seeing way to much oil on a chain, and think thats how it need to look. That is just not so.

 

[windthrown]

Have you pulled one apart? I'll take a look today, but they sure don't look interchangeable.

I did not say that they were. I have pulled 310 oil pumps (same as 290 and 390 saws) and they have control bolts and pump pistons like pro saws do. The 290 has a smaller pump piston than the 310/390, and they can be swapped/upgraded. I have never worked on a 291 (or their siblings, the 271 and 251). They are obviously not interchangeable with the 1127 oil pumps. From the IPL they look like a completely new design pump with nothing there to swap out or upgrade. It looks like they are crank driven like the 026 non-pro, and run all the time.

 

[Slacker4]

Thanks for the input guys. jdhacker I am just used to seeing oil on the chain with my Husky but you are right it does cut fine. I have only ran three tanks of gas through this saw so far as well.


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[mopar3]

How thick is your oil? If its cold and your oil is real thick it will not pump very well.

 

[Slacker4]

It was cold and I am using winter grade stihl bar oil.


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[mopar3]

I'm running the Stihl winter blend as well. I was using some Husky bar oil and when cold it wouldn't pour out of the bottle. I have Echo saws and some Stihls. The Echos oil all the time and you can see the oil all around the bar they put out a lot. The Stihls don't oil at idle and they seem to be pretty dry. If you pull the drive links out of the bar you should find a film of oil on them.