Author Topic: Stihl Piston/Cylinder Kits  (Read 2383 times)

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Offline davbell22602

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Stihl Piston/Cylinder Kits
« on: December 14, 2012, 10:17:08 am »
Who sells the aftermarket or reman piston/cylinder kits for Stihl chainsaws or weedeaters? I'm gonna be getting 026 thats hard to start and has low compression says the owner. I'm gonna bring this back to life and keep it for myself to use.

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Offline 660magnum

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Re: Stihl Piston/Cylinder Kits
« Reply #1 on: December 14, 2012, 10:52:09 am »
Here's what you asked for, the Bailey's after market cylinder and piston assembly.

http://www.baileysonline.com/search.asp?PageNo=1&skw=stihl+026+cylinder

But . . .  as is often the situation, you can save the cylinder and just need a new piston and ring for $30 range.

http://www.baileysonline.com/search.asp?PageNo=1&skw=026+piston

At disassembly, you can examine the cylinder, show us pictures, use a Q-tip and Muriatic acid to clean the galled aluminum from the cylinder.
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Offline davbell22602

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Re: Stihl Piston/Cylinder Kits
« Reply #2 on: December 14, 2012, 11:01:10 am »
Does it matter what bore size I use? 44mm or 44.7mm?

Offline 660magnum

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Re: Stihl Piston/Cylinder Kits
« Reply #3 on: December 14, 2012, 11:21:03 am »
As far as I know, you can use the bigger bore size if you are buying the piston and cylinder?
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Offline davbell22602

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Re: Stihl Piston/Cylinder Kits
« Reply #4 on: December 14, 2012, 11:35:30 am »
As far as I know, you can use the bigger bore size if you are buying the piston and cylinder?

What are the pros and cons of using the bigger size piston/cylinder kit?

Offline Cut4fun .

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Re: Stihl Piston/Cylinder Kits
« Reply #5 on: December 14, 2012, 12:48:37 pm »
To me none. Just depends on the port timing in the cylinder. 44mm to 44.7mm so you gain .7mm. If I was buying p+c I would go with biggest displacement just because. Just like OE 346 42mm and NE 44.3mm if buying complete topend kit I would go biggest. But if I could clean up either smaller bore cylinder then I would re-use and just get a meteor piston kit.

http://northwoodsaw.com/store/index.php?l=search_list&s[search]=stihl+026+cylinder&s[title]=Y&s[short_desc]=Y&s[full_desc]=Y&s[sku]=Y&s[match]=all&s[cid]=0

The AFM 44 is $20 off right now.
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Offline davbell22602

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Re: Stihl Piston/Cylinder Kits
« Reply #6 on: December 28, 2012, 06:42:16 pm »
Update

I bought this saw today that I mentioned earlier in this post for $50. Its 026 Pro and has 20in bar on. The PO was told by one of Stihl dealers that the saw is borderline of not having enough compression to start. The dealer quoted him $300 to go over the saw to see whats all wrong with it. PO said its hard to start but will run when started.

Offline Al Smith

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Re: Stihl Piston/Cylinder Kits
« Reply #7 on: December 28, 2012, 07:38:15 pm »
Unless the cylinder is shedding chrome probabley a new set of rings would fix the problem .Cheapo fix .

Some people hone them but frankly I wouldn't bother as usually the comp will be allright .It might take a tad until the rings fully seat but as soon as they do it will come alive .You'll definately know when it happens .Run it a little rich but other than that run it like you stole it .

Flog that thing like a borrowed mule .It will either run like a scalded ape or fly apart like a dollar watch but seldom would that happen unless something else is wrong with it .

Offline davbell22602

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Re: Stihl Piston/Cylinder Kits
« Reply #8 on: December 28, 2012, 07:46:23 pm »
The dealer told him it needs a new piston. So I guess 44.7mm pistons came in the 026 pro and 026 just had the 44mm. Maybe thats why theres 2 different sized pistons.

Offline 660magnum

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Re: Stihl Piston/Cylinder Kits
« Reply #9 on: December 28, 2012, 07:54:21 pm »
You will see some confusion on the 44mm /44.7mm piston scenario.

It was my impression that the very last 026/026PRO chainsaws were 44.7mm and all 260's were 44.7mm.

Being as it is difficult to date a Stihl other than how it is equipped, it is best you measure your piston first.

You can measure it with a popsicle stick stuck into the exhaust port.

Put the stick all the way into the exhaust port and very slightly pinch it with the piston.

Then measure from the end of the stick to the pinch mark with vernier callipers.

This will be close enough to decide 44mm or 44.7mm.

Being as it is a 026 it is most likely a 44mm but it is also probable, with a chainsaw that old, that it could be a frankensaw and someone could have changed it?
We should share what we know... someone may learn...
That knowledge can live after us... and that "Pays It Forward".
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