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Time for a Stihl 051AV ressurection!

Post in 'The Gear' started by ScotO, Feb 29, 2012.

  1. ScotO

    ScotO Guest

    I have a huge pile of parts saws, mostly a mix of Stihl stuff from the 70's/80's. We were at a local salvage yard that my neighbor owns the other morn ing looking for some metal for a project (hearth-related, we'll save that for another post) when I stumbled across two Stihl chainsaws in a pile of stuff. My heart paced quickly (I'm a sucker for the old magnesium Stihls!) as I dug them out, and I was elated to find one of them to be a Stihl 510 cutoff saw. I have a box of 051AV stuff in the shed but the case and cylinder is bad in my parts box. This saw has an excellent case, and the carb, muffler, clutch looked great too. The other saw was an 015AV (tophandle model) which was the predecessor to the MS192 saws, and it too had tons of great parts. So I asked what he wanted for them, he laughed and said get out of here, take them!! When I got home and stripped them down, I was really happy to find out that both had excellent piston/cylinder/crank assemblies, and the 510 has electronic ignition and is pretty much like new inside! So I will be ressurecting that old 89cc 051AV, building a ported muffler, match porting the intake/exhaust, and maybe even media blast/powdercoat that whole saw! The 051 and 510 are almost totally interchangeable. Just what I needed, more parts for the tool shed stash.... :roll:

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  2. MasterMech

    MasterMech Guest

    Just finished a junkyard run for parts for my heavy-hauler myself. These things always seem to take up my whole day! :p
  3. ScotO

    ScotO Guest

    yes it does!! I may end up being on the show "haorders" sometime in the near future!!
  4. Eater309

    Eater309 Member

    Joined:
    Oct 27, 2011
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    Loc:
    E. Central IL
    Hearth.com Members,
    You seem to be knowledgeable about Stihl chain saws. I've been looking at buying a new Stihl but I'm having trouble finding the models as advertised on their web site.
    I'm looking for a MS 180 190 or 250 that has a quick chain adjust with the new translucent fuel and oil tanks. I would really like to get a 291 C-BEQ but have been todl that they aren't available in the united states. Have you heard of this? I tried to get Stihl to reply to my email but haven't had any luck. Do you have any advice or anyone else here at Hearth.com
    Thanks
  5. greythorn3

    greythorn3 Minister of Fire

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    speaking on the terms of haorders, everytime i watch that show i find something else to throw away.
  6. charly

    charly Guest

    Nice find Scott. I use to have an 051 AVE which I ran 404 chain on a 21" bar. I had the saw during my tree service days. Let me tell you that set up was great for bucking up trunk wood, one powerful cutting saw. Wasn't even working hard. Those saws were built!
  7. ScotO

    ScotO Guest

    I looked that saw up on the Stihl USA website and found this link: http://www.stihlusa.com/chainsaws/MS291cbeq.html Not sure who told you they are not available but according to this page you can find them, enter your zip code in the search box in the lower right hand corner and it will bring up your local dealers. I am pretty knoweledgeable on the older stuff, not really up to date on all the newer stuff but nonetheless I was wondering why you were fixated on that model? There are many nice MS290's out there, check on Craigslist or even ebay. Watch your local classifieds too. The MS290 Farmboss is a great entry level firewood saw, that will run an 18 to 20" bar through most stuff. if you insist on the 291C-BEQ, do some looking on google. You should be able to find more information there..
  8. greythorn3

    greythorn3 Minister of Fire

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    Alaska
    is a 051 90cc?
  9. ScotO

    ScotO Guest

    Yes. 89cc, actually.
  10. ScotO

    ScotO Guest

    yes they are built to last, that's why I like them! My 075AV is basically the same saw chassis as the 051 with a larger piston/cylinder (58mm) giving it 111cc displacement. The 075's were the same weight, but more horsepower. Plus the 075's have automatic/manual oiler combo, which is nice for big rounds!! Sure these saws are heavier, and don't rev as high as the new saws on the market But everything about them (the looks, sound, feel) can't be matched by the modern saws if you ask me. Even the old emblem (like I have in my avatar) is better than the new one!!
  11. ScotO

    ScotO Guest

    Greythorn, I'm right there with you! I was just out in my barn the other day, and contemplating a trip to the dump.......with my cousin's dump trailer. Looking like it's time to start cleaning that barn out, I can really use the space......
  12. smokinj

    smokinj Minister of Fire

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    Great score any pic's?
  13. ScotO

    ScotO Guest

    I'll get some this weekend. I plan on starting the overhaul either tomorrow morning or Sunday. I gotta tell ya, IT AIN'T PRETTY!! But it will be a runner when it's done!!
  14. smokinj

    smokinj Minister of Fire

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    I have seen some come back from the dead. Its amazing what some soap and water can do. (In wife's dish washer) ;-)
  15. Jags

    Jags Moderate Moderator Staff Member

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    Ya know how to turn an old dish washer in to a snow thrower? Buy her a shovel!

    <<<ducks and runs>>>
  16. ScotO

    ScotO Guest

    I've done some crazy chit to pi$$ her off before, that one there? NO WAY!!


    EEK....both you guys are trying to get me killed!!!
  17. smokinj

    smokinj Minister of Fire

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    Love it! But shes smarter than I'am! :lol:

    Attached Files:

  18. smokinj

    smokinj Minister of Fire

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    You really wash it by hand first so it goes in clean to start with.
  19. ScotO

    ScotO Guest

    Finally got the old 051 torn down last evening. Sitting in a kerosene bath right now, honing the cylinder today and putting the bottom end back together this evening. The bottom end is in great condition, top end is too. One ring was frozen in the piston but no scuffing or scoring. Installing new rings so that don't matter anyway....

    Attached Files:

  20. Jags

    Jags Moderate Moderator Staff Member

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    As you put this back together, do you use any type of assembly lube?
  21. ScotO

    ScotO Guest

    jags I use a real light lithium grease on the rotating parts (a WEE little bit) and just a touch of lite machine oil in the cylinder.
  22. Jags

    Jags Moderate Moderator Staff Member

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    Just wondered. I have heard of people actually using a very small amount of 2 stroke for assembly. I personally have never rebuilt a chainsaw, so was wondering.
  23. ScotO

    ScotO Guest

    that would work too. Anything to take that second or two of dry contact away...
  24. ScotO

    ScotO Guest

    Almost ready to put the ol' girl back together..still waiting on a new oil pump drive gear and f!ull wrap handlebar mounts, and a couple other odds and ends. Still have to port the cylinder and open up the exhaust too. All parts are cleans and awaiting reassembly! Resampled952012-03-169516-35-3995465.jpg
    smokinj likes this.
  25. ScotO

    ScotO Guest

    jist finished with the cylinder, intake, and exhaust porting. Also cleaned the casting webs out of the piston ports. One step closer.....here's some pics.

    Attached Files:

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