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Stihl MS-180 chainsaw bar not getting oil


 
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cb in wisc
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PostPosted: Fri Jan 23, 2009 1:09 pm    Post subject: Stihl MS-180 chainsaw bar not getting oil Reply to specific post Reply with quote

Yep, the bar isn"t getting any oil when I am cutting wood. Pulled the bar off and cleaned it.
Cleaned the oil port on the chainsaw. Ran the saw without the bar attached and oil oozed from the port. Should the oil be squirting out of the port with some pressure? I am also using the winter grade bar oil.
 
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Ole Shovel
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PostPosted: Fri Jan 23, 2009 1:24 pm    Post subject: Re: Stihl MS-180 chainsaw bar not getting oil Reply to specific post Reply with quote

Oil pump worn out most likely yeah even Stihls wear out and have to fixed ! Had to put a new gear oil pump on my Poulan and noticed they upgraded the pump from a plastic gear to a bronze one so maybe it will last long enough to finish wearing the saw out now. Aftermarket will have your parts for less than a dealer and possibly better parts.
 
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guido
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PostPosted: Fri Jan 23, 2009 1:36 pm    Post subject: Re: Stihl MS-180 chainsaw bar not getting oil Reply to specific post Reply with quote

Hello cb in wisc,
Are you sure there is enough oil coming out?
It takes more volune to lube the bar. If the volume is O.K. you answered your own question,
the oiler is working, but it is not getting to the bar.
Take a look at the portion of the bar that the oiler is feeding oil into. Check the passages as well. Is it possible the the bar is adjusted so far out, that the oil hole is covered and not feeding the bar? Top off the tank and see it makes a difference.
A weak oiler will sometimes work fine with a full tank. If it does, you found the problem!
Good Luck..............Guido.
 
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The Shmunk
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PostPosted: Fri Jan 23, 2009 1:45 pm    Post subject: Re: Stihl MS-180 chainsaw bar not getting oil Reply to specific post Reply with quote

Hi. I am a service technician at a stihl gold dealership. The oil pump on most of the stihl saws is driven from a plastic worm gear with a rod coming off of it that fits in a groove on the clutch drum. Check the worm gear, over a period of time it gets worn and the worm teeth strip. The worm gear costs about 10-15 dollars depending on where you go, also check the oil port where the pump feeds the oil into the guide bar, it can get plugged up with sawdust. stihls without and adjustable oiler do not use alot of oil, normally about half a tank of oil to a full tank of gas. Hope this helps and goodluck!
 
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supergrumpy
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PostPosted: Fri Jan 23, 2009 4:15 pm    Post subject: Re: Stihl MS-180 chainsaw bar not getting oil Reply to specific post Reply with quote

exact same thing happened to mine

I wasn"t careful about keeping sawdust out of chain oil tank, big chunks stopped by screen, real fine stuff pumps thru, middle stuff builds up in the pump and slows down the flow

dealer took it apart and cleaned it, I am a lot more careful now
 
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2x4
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PostPosted: Fri Jan 23, 2009 9:52 pm    Post subject: Re: Stihl MS-180 chainsaw bar not getting oil Reply to specific post Reply with quote

No, it does not squirt out under pressure, barely oozes out. That is enough to force it up to the bar if the holes are clear. What makes you think it isn't getting oil? Bar will smoke if no oil but you don't mention it. One check you can make is to rev up the saw in front of a white surface. If you see oil sprinkles on the white its getting enough oil even if you can't see it on the bar..
 
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woodbutcher
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PostPosted: Sat Jan 24, 2009 5:03 am    Post subject: Re: Stihl MS-180 chainsaw bar not getting oil Reply to specific post Reply with quote

Hello, Schmunk,
I have a MS250. It's a good saw, but I've wondered why in the world they have those dust-attracting strings to tether the fuel and oil caps to the tanks? My old 031AV didn't use them, and I never lost a cap.
Butch
 
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Bill in NorthCentral PA
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PostPosted: Sat Jan 24, 2009 5:18 am    Post subject: Re: Stihl MS-180 chainsaw bar not getting oil Reply to specific post Reply with quote

I don"t mean to sound elementary, but often the hole in the side of the bar (which mates to the oil "slot" on the saw) gets plugged and oil can"t get through to the chain groove. Had this problem the other day when my 14yo changed the chain. He flipped the bar like I asked, never looked at the hole. It was plugged.

HTH

Bill
 
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cb in wisc
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PostPosted: Sat Jan 24, 2009 6:02 am    Post subject: Re: Stihl MS-180 chainsaw bar not getting oil Reply to specific post Reply with quote

Uh, lets see here, how have I determined that the bar is getting no oil. Held the bar over snow and a piece of clean cardboard while running it, no oil spatter. No drop in the level of the tank. Hot bar and chain, hot enough to make burn marks in the wood being cut. Dry chain, no oily residue. I do know after talking it Stihl that they recalibrated their newer chainsaws so the they only go through half a tank of oil to a tank of gas. This is because of pressue from the EPA. Doesn"t help the saws though.
 
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Kemper
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PostPosted: Sat Jan 24, 2009 6:20 am    Post subject: Re: Stihl MS-180 chainsaw bar not getting oil Reply to specific post Reply with quote

I have a Stihl Ms250 that won't pump the heavy bar oil in the winter,you have to run lite weight oil in them,especialy the saws that have no adjustment for the amount of oil for the bar.
 
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2x4
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PostPosted: Sun Jan 25, 2009 12:31 am    Post subject: Re: Stihl MS-180 chainsaw bar not getting oil Reply to specific post Reply with quote

next step - maybe the filter is clogged or has failed. Some smaller Stihls had oil filters that would not let oil thru, even when new. Form a hook in a thin wire & hook the oil line & pull up. There is not enough oil line to pull the filter out so you will have to stretch the oil line some. Of course you have emptied all the oil out of the tank. Pull the filter halfway off the filter housing, put oil in & try it. If oil still doesn't come out the hole (bar is off the saw) then the pump gears are bad.
 
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nw_bearcat
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PostPosted: Sun Jan 25, 2009 7:20 am    Post subject: Re: Stihl MS-180 chainsaw bar not getting oil Reply to specific post Reply with quote

I've noticed my 180 is quite senstive to the thickness of oil. needed some bar oil once and grabbed a jug of Poulan oil b/c it was handy, it won't hardly pump on even a slightly cool day. Have got some Stihl oil and it's better, i intend to get some Stihl winter grade to have around and use it when its really cold. I may also look at my filter, and check up on those oil passages.
 
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guido
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PostPosted: Sun Jan 25, 2009 4:05 pm    Post subject: Re: Stihl MS-180 chainsaw bar not getting oil Reply to specific post Reply with quote

Hello cb in wisc,
If it is very , cold 20 degrees or less, you may want to change the air intake shutter to winter operation.It may help with oil flow as well as making the saw run better. The winter position allows worm air from the saw, to be mix with outside air.
Guido.
 
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