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Tool Talk Discussion Forum

Chansaw bar oil leak

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chapman340

07-27-2003 16:45:14




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I own an Stihl 028 Wood Boss. Lately, the bar oil runs out of saw if not being used for a long peroid of time. Heard a while ago this was/is a comnmon problem with some of their saws, or at least older ones. Is it as simple as rebuild the pump on the saw, or is there another possibility? Are the rebuild parts availiable online?..... . Thanks!




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stihltech

07-30-2003 19:12:24




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 Re: Chansaw bar oil leak in reply to chapman340, 07-27-2003 16:45:14  
Pump wear and bad seals. On the 28, the vent is under the bar plate between the bar studs. Make sure it is clean around it, and see if it is coming out the vent. But I vote for a pump on this model. The 041 is repairable with new seals and cleaning the oring seal top surface. On a mac 1010, the front cover gasket or a crack under the adjuster screw.



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Karz

07-30-2003 10:47:15




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 Re: Chansaw bar oil leak in reply to chapman340, 07-27-2003 16:45:14  
Well, I have the same saw with the same problem and don't buy this "that's the way it is" stuff. I've bought this saw 'barely used' in Alaska 15 years ago, ran it to death in -20 to +90 temps; used it outside in the cold where it was commonly filled with cold oil, and then brought it inside to keep it warm at night with the oil cap on tight, and it never had a leak at all, ever, until this last year. Then, all of a sudden, it leaks like crazy.

My saw is clearly leaking from INSIDE the clutch housing area (pulled the cover and oily residue all around in there), so I'm bettin' that the pump seals of the oiler have worn to the point that they let gravity push oil through the pump housing and into the case when it's not running. There's probably no other way to test this than replace the thing, but since I got the saw new for $50 I'll still be hundreds ahead. If it doesn't work, hey, I'll "lay it on it's side." ;)

K.

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bob

07-28-2003 15:20:52




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 Re: Chansaw bar oil leak in reply to chapman340, 07-27-2003 16:45:14  
They leak because the oil tank vent doesnt work properly & pressure inside the tank continues to push oil out to an area of less pressure. If the vent is built into the cap sometimes a new cap or cleaning the vent will do it. Or just unscrew the oil cap before you put it away, thus equalizing the pressures. Remember to re-tighten the cap or you'll have a worse mess that before. Or lay it on its side, like they say.

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TimV

07-28-2003 13:11:43




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 Re: Chansaw bar oil leak in reply to chapman340, 07-27-2003 16:45:14  
Chapman340: Ditto the other responses--I have an 041AV Farm Boss and it leaks if not put on its side while stored. It's pretty much standard for the older Stihls, and probably more trouble than it's worth to repair. If anyone DOES have a fix, I'd be interested in hearing it, but as it isn't much of a handicap, I've always just left it as is.



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Mac

07-27-2003 19:56:23




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 Re: Chansaw bar oil leak in reply to chapman340, 07-27-2003 16:45:14  
Got an old Mac, and a stihl. Both leakers from day 1. Lay em over on the side, else empty oil out untill next use. Seems a lot of them leak. Waste of time probably to repair.



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walt

07-27-2003 19:23:13




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 Re: Chansaw bar oil leak in reply to chapman340, 07-27-2003 16:45:14  
I've owe several different brands over the yrs. Now a Stihl 029. All of them seemed to do it. I now lay my Stihl on its side for storage..



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