Author Topic: Stihl 031AV  (Read 3800 times)

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Offline winland

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Stihl 031AV
« on: September 28, 2013, 07:32:13 pm »
What is the difference between these two 031AV's

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Offline 660magnum

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Re: Stihl 031AV
« Reply #1 on: September 28, 2013, 07:40:43 pm »
The bottom one has a newer starter cover.

Other than the starter, they appear to be the same version of 031.

031's had no brake, a drive release system, or a brake somewhat like today's brake depending on the year made.

Also the later 031's had a solid state CD type ignition and they said "Electronic" on the cover under the 031 emblem.

The original 031 had a points type ignition.
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Offline winland

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Re: Stihl 031AV
« Reply #2 on: September 28, 2013, 07:54:29 pm »
Thanks for that great detailed info.
Much appreciated.
Chuck

Offline winland

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Re: Stihl 031AV
« Reply #3 on: October 22, 2013, 06:30:36 pm »
I purchased the 031av in the top photo for $50.
It runs "rough" especially at idle.
My main purpose in buying this saw is to take it apart and see if I can put it back together again.
Hopefully it will run after I get it back together, but not high expectations.
Probably a hopeless goal, but WTF.

I have not found a tag on the saw with the year/model/sn

I have downloaded a user and a service manual for the 031AV, but do not have an IPL.
I need the IPL for the early 031AV

Also, I want to replace the black, rubber fuel line from the tank to the carb.
Can I buy an appropriate fuel line at my TSC, ACEHardware, or Lowes?
If I need to replace the carb (not going to rebuild), what carb can I buy/use?
Can I replace the fuel filter with a basic/generic filter chainsaw filter from my local hardware store?

Any other fuel related parts on this old saw that this crazy,old, newbie might try replacing?

Thanks.
Chuck






Offline Al Smith

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Re: Stihl 031AV
« Reply #4 on: October 22, 2013, 06:51:05 pm »
I think I've seen two of these things in my life time.One a neighbor next to my shop has and one in a dealers dead pile .

I can't figure out what model of carb it has because the IPL is in German but it lists both Walbro and Tillotson but doesn't give a model number .At any rate some place on the carb will be a model number .Stihl often uses some special linkage assemblies so just replacing by model number may not exactly work .They aren't the difficult to rebuild .

Fuel line I haven't found yet but you might get lucky and find an oem one at a dealer

Offline jmester

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Re: Stihl 031AV
« Reply #5 on: October 22, 2013, 07:34:41 pm »
The fuel line from the carb to the tank, you can use some line from your hardware store,tsc. The fuel filter has a 1/4" nipple, so stihl or aftermarket. Northwood saw should have a cheap fuel filter for you. The fuel line in the tank is an oem piece. specially molded. There where two carbs used on an 031, not sure witch one you have. Walbro WA-2C and a Tillotson HU-3G.
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Offline winland

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Re: Stihl 031AV
« Reply #6 on: October 22, 2013, 07:38:39 pm »
Thanks Al and Jason.
I will try to check the carb for markings/manufacturer.

Chuck

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Re: Stihl 031AV
« Reply #7 on: October 22, 2013, 07:47:27 pm »
The  Walbro kit #K10-WAT, the Tillotson kit# RK-14HU. think you are going to have a hard time in finding a new carb for that saw. unless someone has some new old stock. i would just try to rebuild it your self.
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Offline Cut4fun

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Re: Stihl 031AV
« Reply #8 on: October 22, 2013, 07:55:38 pm »
Stihl is hard to decipher. You wont find the year etc on stihl, like you can on a husky. Serial number can give a little idea for a stihl dealer to sometimes  give you a idea.


All I can find.

031 AV 1971-1982 3.2 hp 48 cc 37, 40 cm 6.3 kg 37 cm Price 1974 Sword 732,60 DM under the name "Stihl 031 AV electronic" with electric. Ignition 1974, the world first saw with quick-stop chain brake.

031 AV    1971 - 1982    3,2 PS    48 cm³    37, 40 cm    6,3 kg    Preis 1974 mit 37 cm-Schwert 732,60 DM; unter dem Namen "Stihl 031 AV electronic" mit elektr. Zündung 1974 die weltweit erste Säge mit Quickstop-Kettenbremse.


Offline winland

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Re: Stihl 031AV
« Reply #9 on: October 23, 2013, 09:55:50 am »
Carb is a Walbro WA
23-77 is also stamped on the carb

Chuck

 

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