Author Topic: Stihl 025 250  (Read 5068 times)

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Offline Cut4fun .

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Re: Stihl 025
« Reply #20 on: June 20, 2014, 01:59:00 pm »
Yes there are 4 metal bushings molded in the case. Can't figure how the engine moves around when the bolts are tight. For the bolt pull the engine down into the case and hold it tight.

Thats what I am wondering too. The motor can move up and down. Bolts can be seen moving out with gap between case and bolt head. 

The only thing I can come up with since I cant tear it down now. When I first checked the 4 clamshell bolts they were a hair loose. Just wonder if that little play over years of use had worn the case to allow this movement.
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Offline H 2 H

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Re: Stihl 025
« Reply #21 on: June 20, 2014, 02:04:47 pm »
I really like the MS 250 I had a 025 also but sold it

Motors are not hard to work


That is a extra motor I got from a tree service that ran a MS 250 over with the service truck I've had that motor now three years and haven't used it

That's why I own two MS 250


I've changed the carbs to WT215 on both and you can feel the differences

Motor runs cuts great.  Have you ever seen a 025 etc plastic crankcase wear out? Something has to be worn to create that much play.

No; I only had a 025 for about a year and a half and I didn't have any problems with that motor and it was a older saw

I couldn't tell any difference between 025 and 250

There for a while I was getting alot of straight gassed MS 250 and I got a few from a tree service that changed over to a different Stihl saw for there ground crews. I think it's around 25 MS 250 I've had and flipped and only one 025

I flip alot of saws that's how I make my pocket money :)

"People ask me where all my money went, I tell them half of it I spent on gambling, fast women and liquor, the other half I wasted!" W.C.

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Offline Cut4fun .

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Re: Stihl 025
« Reply #22 on: June 20, 2014, 03:18:42 pm »
I had to know. Tore it down with owners ok for look see. 

The plastic crankcase has worn to the point the metal inserts even when bolts tight  are allowing the motor to slide up and down.  I think this is what fish was saying?

Are you saying I can take some off of the metal inserts and still use with worn plastic case? 
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Offline Cut4fun .

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Re: Stihl 025
« Reply #23 on: June 20, 2014, 03:49:26 pm »
Owner said he got this 025 in 1991 at M&M's and has cut lots of firewood. Sharing duties with his later purchased  MS390.

Carb had H side too.  8)
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Offline KilliansRedLeo

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Re: Stihl 025
« Reply #24 on: June 20, 2014, 03:51:25 pm »
I believe that is what Fish was telling you, just make sure that you do not take so much off the inserts that the bolts will not tighten up. You might also want to glue the inserts in with JB.
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Offline 660magnum

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Re: Stihl 025
« Reply #25 on: June 20, 2014, 04:02:20 pm »
By now the cradle for the clamshell engine has been wallowed out and the chance of this fix having any longevity is slim.
We should share what we know... someone may learn...
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Offline Cut4fun .

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Re: Stihl 025
« Reply #26 on: June 20, 2014, 04:08:35 pm »
I have never worked on one of these before but is there some kind of steel bushing that is in the plastic where the crankcase bolts go through?   Are the bushings there and not missing?
Yes there are 4 metal bushings molded in the case.
I think Roger may be on to something with the bushings in the case. Are the bushings moving around in the case? The bolts could be tight against the bushings but the bushings themselves may be moving in the plastic case. With age and exposure to UV some plastics shrink, like old 192Ts where the press fit oil pump will not stay in position in the case. I don't mean get tighter around something but shrink away from press fit hardware.
Yes, I have had to tap out those bushings on an older saw, and grind a little off of the top.

Yes 4 metal bushings in pic left side of crankcase.

If molded in these are way past staying in.

Appears worn  both sides and hole  as all 4 metal inserts just fell out. 
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Offline Cut4fun .

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Re: Stihl 025
« Reply #27 on: June 20, 2014, 04:18:08 pm »
By now the cradle for the clamshell engine has been wallowed out and the chance of this fix having any longevity is slim.

Somebody else will have to find out ( as I have no interest in putting it back together now that owner said no go).  He has a new MS261.

Me I would get another crankcase to be safe. But I see how they say it can be Rednecked.   
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Offline Cut4fun

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Re: Stihl 025
« Reply #28 on: June 21, 2014, 11:34:05 am »
Owner just left after checking out the saw.  025 parts is staying with me as we worked out a trade on the good parts left.   
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Offline Cut4fun

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Re: Stihl 025
« Reply #29 on: June 21, 2014, 12:02:34 pm »
Was the 025 even being sold in 91? All I can find is 93.  Said he was at a demo show when he got it from a dealer in Ohio.
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