Stihl 031???

[Fish]

I sent the package on Wed., so it should be there today.

 

[DirtTroll]

I have an old 031 AV stihl that came with a 16 inch bar. Previously owned by my grandfather (bought new as package deal with an 056 mag and never used). This saw is mint and will struggle with an 18" bar in hardwood. So, a 31" bar is totally out of the question. It has very noticelably less power than my MS 260 pro with the muffler gutted out. The 056 Mag is a different animal and totally different story.

My suggestion. Sell the bar and buy a 16" or 18" bar if you plan to keep it. The 031 AV was the homeowner saw of the late 70's. My grandfather said he wouldn't have gotten it if it wasn't darn near free when he bought the 056 mag.

 

[jimbo1490]

New guy on here .I found this site while looking for a coil for my 25yr old 031av.Could any of you guys tell me how to ck a coil and also how to ck a flywheel. My saw guy put a used coil on my saw and it ran about 10min with the used coil he and then wouldnt fire. This has got me thinking if the old coil quit after25yr why would the coil he put on work and then just quit in 10min of running Thank for any help

This is a common way for ignition coils to go bad. They will work when cold but short out and quit once they warm up. The type of coil that is on the 031 contains both generator/low tension coil and high tension (high voltage) coil. One end of both of these coils is grounded. The other end of the low tension side grounds through the points (or ignition module). The other end of the high tension side grounds through the spark plug gap. Test the coil by disconnecting the low side and testing for any continuity between the low and high tension sides. Any continuity here and the coil is bad. That part is simple. The other part of the test is to see if either part of the coil is shorted to ground. Since one end is supposed to be grounded, what you are looking for is *some* resistance between the open end of each part the coil and ground. The resistance numbers you are looking for vary from model to model. The low and high tension sides each have their own target resistance, the high tension side having a higher resistance since it is made with a longer piece of much finer wire. A Stihl service manual may give you a test resistance number. An experienced tech may know the numbers as well. If the flywheel does not rub, is not excessively corroded on the magnets and the magnets are still strong it should work OK.

Jimbo

 

[Justin Garrison]

Backyard saw race

Me and my friend just got done a little backyard saw racing. However my saw versus my saw is not that much competion. I guess it just comes down to the operator, my log holding system is quite unique, but it works good.

 

[lonewolf1969]

Thank Jimbo I kind though heat had something to do with it so I let it cool and it still wouldnt fire so I guess both of the coil are bad what a shame that old saw has all ways crank and ran good for 20 odd yrs and still would pull a 20in bar >I have went and bought a new 290 but it doesnt look like it as well made as the ole 031. I just keep my eye pealed for a coil for my ole 031 think I might want to use it again.Does anyone know anyone who rebuild them coil and what kind luck do u have with a rebuild one?

 

[jimbo1490]

I have rebuilt a few coils. It's not too hard to do though you need to be patient since the work is a bit tedious. I don't thing you need to resort to that since there are a lot of good used ones left. I just sold one a couple of months ago complete with points and all for $20. Just watch ebay for a parts saw.
I went and searched the ebay store of a well-known ebay seller of old Stihl parts and found this:

http://tinyurl.com/6xvlr

Not too bad since you get the flywheel, too.

Jimbo

 

[lonewolf1969]

Thanks Jimbo sound like a good deal to me to