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044 rebuild questions

Discussion in 'Chainsaw' started by ssmith0480, Feb 8, 2017.

  1. ssmith0480

    ssmith0480 ArboristSite Lurker

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    I wasn't trying to start an OEM vs aftermarket debate. Just seeing what the general concensus was for my particular situation.

    Btw...I have done lots of reading, but it doesn't make me an expert. It doesn't make me as knowledgeable as someone who has rebuilt saws many times. That's why I posted for some guidance for my particular situation. I would hope that you could tell I'd done research on it already by the specifics of my original questions.

    So as far as which saw to use...no real difference except for cap styles correct? Pick the nicer one?

    If the crank bearings and seals look good, is there any real reason to replace it? The 044 looks pretty clean. Looks like lower hours than the 440. I didn't see the piston and cylinder that came with it though. It was cleaner and all the plastic was much nicer.

    Thanks for all the help guys.
     
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  2. Tothemax

    Tothemax ArboristSite Operative

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    It's your $ spend it how you wish. Just saying there are some very good aftermarket kits out there that give you more bang for your buck vs oem. I never use oem anymore because they are too expensive for what you get.

    If you are splitting the case you might as well swap out the bearings and seals.
     
  3. pioneerguy600

    pioneerguy600 Lost in Space Staff Member

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    Just me, but I would build the 044 and physically check the seals and bearings, if the bearings feel smooth and there is no noises from them, no up and down movement then I would build it as is. When assembled with the jug on I would then do a vac and pressure test before re assembling the remainder of the saw in this case. There is no need to change things out that are in good satisfactory condition.
     
  4. grizz55chev

    grizz55chev Tree Freak

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    Seems like good advice.:cool:
     
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  5. lone wolf

    lone wolf MS 200T King

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    Always is he builds I think hundreds of them.
     
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  6. grizz55chev

    grizz55chev Tree Freak

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    For fun.
     
  7. lone wolf

    lone wolf MS 200T King

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    They can be fun yes.
     
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  8. Jimbo209

    Jimbo209 ArboristSite Guru

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    I've Got a am kit to port here for a fs250 that will get genuine clips and rings to prevent miss haps

    Sent from my SM-T320 using Tapatalk
     
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  9. grizz55chev

    grizz55chev Tree Freak

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    Why bother?
     
  10. lone wolf

    lone wolf MS 200T King

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    No luck with aftermarket cylinders either?
     
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  11. grizz55chev

    grizz55chev Tree Freak

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    It's a frickin brush cutter, slap it on and get to work.
     
  12. lone wolf

    lone wolf MS 200T King

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    Oh! Why bother is right.
     
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  13. ironman_gq

    ironman_gq Addicted to ArboristSite

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    OEM 046 jug is pretty east to make work, I've got a 044/046 hybrid with a little port work done and it's a beast of a saw. IIRC correctly it was maybe 20 minutes with a round file and dremel to get it bolted on, mine didn't have any skirt clearance issues and running it without a base gasket got the squish right where it needed to be. Porting was more or less just raising the exhaust port slightly and widening the intake, exhaust and a little work on the transfers and generally smoothing everything out. Definitely worth the work though.
     
  14. Jimbo209

    Jimbo209 ArboristSite Guru

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    Cause I can bolt the original back on if it doesn't work.
    the am kit I can also experiment with port timing/shape/fingers if I can get in there and only loose a few dollars.
    Why so I can run double line out of head. In tall winter grass or deal with thick clumps

    Sent from my SM-T320 using Tapatalk
     
  15. lone wolf

    lone wolf MS 200T King

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    Well if you enjoy it I don't see why not then. I just thought it was a task.
     
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  16. jd548esco72

    jd548esco72 ArboristSite Guru

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    the 044 is one of the best build saws out there IMHO. i've built them with 046 OEM jugs , am-440 jugs and big bore kits-- even one all china ms440 clone--

    the two that i run the most are the OEM 460 jug 440 and the 440 china clone--

    the 440 clone has been running for the last several years with a $29 china jug/piston and those cheap clips-- it has seen quite a bit of use and still going strong.

    044/440s are like home made chili-- do it your way--- you can't hardly go wrong with a 440 as long as the basics are there -- tight bearings, good tight seals-- you can't miss-- just take your time and make sure everything fits properly
     
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  17. ssmith0480

    ssmith0480 ArboristSite Lurker

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    So apparently it's a 10mm wrist pin, I didn't realize that the "X" in X29 583 701 represented a number. So the 125 338 277 would be a 10mm. Thanks for pointing that out to me John.

    I cleaned everything and organized it into most of a complete saw.
    [​IMG]

    Newbie question: Should the crankcase be able to hold water? While I was simple green/purple powering everything off I noticed that water would drain out of it... couldn't see where it would drain to, but isn't that part supposed to be air-tight? Is that just an indicator to split it and at least put a new gasket in?
     
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  18. ssmith0480

    ssmith0480 ArboristSite Lurker

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    So. Answered my own question. It was leaking water on the clutch side out of the seal. I didn't have a bearing spacer in it. Inserted it and the crankcase is now water-tight, so hopefully it'll pass pressure and vacuum test. I also found a new OEM 10mm cylinder and piston for around the cost of a good quality aftermarket unit.

    [​IMG]
     
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  19. jd548esco72

    jd548esco72 ArboristSite Guru

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    if ya got a 10mm rod your going to have to have a 10mm piston to fit on it--

    all the big bores are 12mm i think---

    the 10mm 044s were quite the runners -- if the crank and rod are good i would just run those---
     
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  20. ssmith0480

    ssmith0480 ArboristSite Lurker

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    Yeah I bought a new Stihl 10mm piston and cylinder. It's one of the Mahle slant fin cylinders, it's new but the box it came in was ancient. Now I just need a 10mm piston bearing and I should be good. I have a bearing on the other saw that came with the 044 but it's 12mm. I'm definitely learning a lot about 044's.

    Oh, and I was just putting water into the crankcase to check for obvious leaks. I dried everything out completely and oiled it a little afterwards. My train of thought was if it wouldn't hold water it definitely wouldn't hold any kind of air pressure.
     

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