Author Topic: Stihl 4140 family Weed Whackers FS-45,55, etc  (Read 1832 times)

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Offline bloodontheice

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Re: Stihl 4140 family Weed Whackers FS-45,55, etc
« Reply #30 on: May 15, 2014, 02:49:14 pm »
We sold hundreds of FS55/45's over the years and besides the FS90's its been our best selling trimmer.

Seems like all the ever need is fuel lines and a carb. and the fuel lines seem to hold up better than the carbs.

Luckily they dropped the price of the FS56, it's strato replacement we were having a hard time moving them at
229$, now their 199$ for the spring and seem to be moving better.

Offline 660magnum

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Re: Stihl 4140 family Weed Whackers FS-45,55, etc
« Reply #31 on: May 15, 2014, 05:22:29 pm »
I was at the Stihl dealer about 3/4 mile North of my house day before yesterday and some guy was picking up a FS56R that he had bought earlier and they had run it etc for him.

I ordered some parts and got them in 2 days.
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Offline H 2 H

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Re: Stihl 4140 family Weed Whackers FS-45,55, etc
« Reply #32 on: May 15, 2014, 07:23:17 pm »
When I bought my FS 45 everyone told me it was to small and wouldn't last a year for what I use it for; it's been three years and two spools of line working on the third spool and just keeps on going





It sure doesn't look like this now :)
"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.

"..... nothing more funnier than watching some ole coot make a fool out of himself, especially sideways”

"You can't argue with someone that doesn't have any real life experience on the subject."

Offline 660magnum

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Re: Stihl 4140 family Weed Whackers FS-45,55, etc
« Reply #33 on: May 15, 2014, 08:18:56 pm »
You got me with those pictures . . .  I was looking at those pictures and was thinking, for all the line he has used, the FS45 still looks new?

Then I read the caption under the last picture.
We should share what we know... someone may learn...
That knowledge can live after us... and that "Pays It Forward".
Be all that you can be . . .

Offline H 2 H

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Re: Stihl 4140 family Weed Whackers FS-45,55, etc
« Reply #34 on: May 15, 2014, 10:33:41 pm »
You got me with those pictures . . .  I was looking at those pictures and was thinking, for all the line he has used, the FS45 still looks new?

Then I read the caption under the last picture.

:)

"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.

"..... nothing more funnier than watching some ole coot make a fool out of himself, especially sideways”

"You can't argue with someone that doesn't have any real life experience on the subject."

Offline brokenbudget

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Re: Stihl 4140 family Weed Whackers FS-45,55, etc
« Reply #35 on: May 16, 2014, 09:23:02 am »
the only problem I see on these is every once in a while the 'nut' that the trimmer head sits on. it and the little shaft is splined and after a bunch of hours they like to strip. I don't bother buying the whole new end. I just get everything lined up properly and drill a small hole all the way through and pin it. usually a shingle nail. I then peen each end down flat to the nut so the head still fits on proper. free, quick and stronger than what was there.
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Offline 660magnum

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Re: Stihl 4140 family Weed Whackers FS-45,55, etc
« Reply #36 on: May 16, 2014, 09:30:21 am »
"Good Fix"
We should share what we know... someone may learn...
That knowledge can live after us... and that "Pays It Forward".
Be all that you can be . . .

Offline tinkerswithengines

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Re: Stihl 4140 family Weed Whackers FS-45,55, etc
« Reply #37 on: May 16, 2014, 06:42:00 pm »
That's not just a good fix....that's a GREAT fix! ;D

At the shop when one these 45's/46's curved shafts came in with that problem, it was always bad news for the customer. We ended up selling them a new trimmer or a complete new shaft assembly since Stihl will not offer a replacement ...at least here in the USA.

I do have two of the shafts in my shop that have the "loose" nuts. I had previously tried re-knurling them with a series of new and deeper knurling with a small sharp chisel. However, they never held up for very long. I had never gave it a thought to drill a hole through the nut and shaft :'(.

Well, when I get the time, I am going to attempt that operation but I think I will use a roll pin in place of a roofing nail.

One other problem with them is that the retaining ring at the end of the shaft will come off. Getting a new tight spring steel retainer of the right diameter wasn't always at hand and re-using the old one, if found seemed to not hold up very well. The bronze bushing, if still serviceable at the time of the mentioned repairs should be greased with a high temp grease.

Thanks for the tip! Learned something new today....now I can go to bed tonight a happy man! ;D

Dave
NOTHING BUT STIHL! 028WB, 029, 029 Super, 024, 026(2), 026PRO, MS250, MS290(2), MS310

Offline brokenbudget

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Re: Stihl 4140 family Weed Whackers FS-45,55, etc
« Reply #38 on: May 16, 2014, 06:56:43 pm »
tinker, I did try a roll pin the first time I did it. even with a proper sized pin for the hole, after a week it ended up working itself out and wearing through the plastic of the head, locking it in place. I've used the roofing nails in the past on other projects with nothing but good results and decided to try it here. the one good thing about peening both ends is that pin isn't going anywhere. the nail is soft enough to peen down nicely and strong enough to hold much more abuse than the knurled fit. :)
when I grow up, i wanna be an adult.

Offline tinkerswithengines

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Re: Stihl 4140 family Weed Whackers FS-45,55, etc
« Reply #39 on: May 16, 2014, 07:31:40 pm »
OK...stands to reason.

Thanks again!

Dave
NOTHING BUT STIHL! 028WB, 029, 029 Super, 024, 026(2), 026PRO, MS250, MS290(2), MS310

 

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