ArboristSite.com Sponsors
 
 


Husky 359 firewood saw rework.

Discussion in 'Chainsaw' started by henry r, Oct 7, 2019.

  1. henry r

    henry r ArboristSite Member

    Joined:
    Oct 6, 2019
    Messages:
    59
    Likes Received:
    89
    Location:
    nsw australia
    A Husqvarna 460 rancher

    60.2cc and rated at .3hp less than a new 359. Trying not to set my goals too high. :D
     
  2. Bob Hedgecutter

    Bob Hedgecutter ArboristSite Operative

    Joined:
    Jul 18, 2019
    Messages:
    261
    Likes Received:
    309
    Location:
    Small Town, way down South- New Zealand.

    Oh okay- sorry I misinterpreted you- you actually meant the poor mans 460, not the serious one! :ices_rofl:
    Carry on!
     
    henry r and chipper1 like this.
  3. old guy

    old guy Addicted to ArboristSite

    Joined:
    Oct 23, 2008
    Messages:
    1,374
    Likes Received:
    2,124
    Location:
    Becker Mn
    You don't need a degree wheel if you'r not changing the port timing, it's my understanding that the port timing on these is very good, just open the lower intakes to match the base gasket, delete the gasket and do a muff mod.
    I did 2 of these this year and one of em beats up on my stock 562.
     
    cuinrearview, henry r and Ronaldo like this.
  4. henry r

    henry r ArboristSite Member

    Joined:
    Oct 6, 2019
    Messages:
    59
    Likes Received:
    89
    Location:
    nsw australia
    Hmmm... Check compression...

    Now a smart man would have done a cold compression check and then a warm compression check when they got the saw...

    A sensible man would at least have thought to do one before they pulled the starting assembly to bits...

    My first job when i get home from work... finish cleaning the bits of starter and put it all back together...

    Old Guy, I'm not holding my breath but that much extra mumbo would make me very happy.
     
  5. henry r

    henry r ArboristSite Member

    Joined:
    Oct 6, 2019
    Messages:
    59
    Likes Received:
    89
    Location:
    nsw australia
    I didn't get out to the shed last night... bit i did tonighy.


    Measurements written here so they don't get lost.

    Base gasket. Chewed up. .65 to .75mm

    Squish ex side. 1.315 mm +/-

    In side. 1.21 mm +/-

    Lh side 1.24. mm +/-

    Rh side. 1.25. mm +/-

    Min clearence metal to metal. .46 mm = .018"


    My technique would probably make a machinist/engineer cry but it seemed repeatable and gave me a set of numbers that all relate to each other.

    Is 18 thou" squish too tight?

    Will sealant give me a noticable addition to the clearence?

    Now i have a cylinder in my hands it is time to re-read all the porting threads and think through what comes next...
     
  6. cuinrearview

    cuinrearview Red saw lover

    Joined:
    Oct 24, 2014
    Messages:
    6,809
    Likes Received:
    11,879
    Location:
    Hillsdale, MI
    Toss that gasket. .018" will be just fine.
     
    Ronie and henry r like this.
  7. henry r

    henry r ArboristSite Member

    Joined:
    Oct 6, 2019
    Messages:
    59
    Likes Received:
    89
    Location:
    nsw australia
    20191012_171516.jpg

    20191012_171558.jpg

    20191012_171818.jpg

    1 side better than it was.

    The cover is a bit messy but there is nothing i can do now.
     
    Huskitoter and Ronie like this.
  8. henry r

    henry r ArboristSite Member

    Joined:
    Oct 6, 2019
    Messages:
    59
    Likes Received:
    89
    Location:
    nsw australia
    The cyl is now cut on the other side as above... not looking like I'll get a chance to grind the 2nd cover tonight.

    I'm stuck with how to proceed on the ports.

    The transfers seem to look nice as is. They could be flared into the cylinder but Im thinking the flow will break off the sharp edges nicely (hopefully leaving a nice tumbling charge).
    The exception being the edge closest to the intake, but, in another 359? porting thread someone said something about wanting to direct the incoming charge towards/across the exhaust port.

    Thoughts?

    With the exhaust, should it be kept ar a max width if 32mm regardless of shape? ie. The cutting into the walls being no wider than 32mm whether a square edge or a bell mouth rolled into the port.

    What is the reasoning behind the cob loaf profile of exhaust ports?

    Thanks.
     
  9. Huskitoter

    Huskitoter ArboristSite Operative

    Joined:
    Jan 17, 2018
    Messages:
    342
    Likes Received:
    315
    Location:
    Georgia
    Looks good. No help with porting.

    Does the intake boot have the metal clamp update? Caber ring?
     
  10. henry r

    henry r ArboristSite Member

    Joined:
    Oct 6, 2019
    Messages:
    59
    Likes Received:
    89
    Location:
    nsw australia
    The metal clamp/boot is on order with some gaskets and bolts.

    Did a little more on the bottom end of the transfers, left the ports alone.

    Widened the exhaust a tiny amount and rolled the sides out. Totalling about 31mm wide so it is very tame compared to most.

    The pics will have to wait for daylight.

    Still haven't touched the muffler, i just can't decide which way to point the exhaust.

    I'm left handed but do maybe 1/3rd of my cuts right.
    I don't want the exhaust pointing straight at the timber or the bar/chain, nor tucked away under the plastic top cover.
    I really want a spark arrestor screen and prefer the look of a pipe over a deflector...
     
  11. Ronaldo

    Ronaldo Addicted to ArboristSite

    Joined:
    Apr 22, 2010
    Messages:
    2,243
    Likes Received:
    2,556
    Location:
    East Central IOWA
    Couple of 359's that I've done. I love the deep throaty sound of a pipe. No screens on these, however. [​IMG][​IMG]

    Sent from my SM-G930VL using Tapatalk
     
  12. henry r

    henry r ArboristSite Member

    Joined:
    Oct 6, 2019
    Messages:
    59
    Likes Received:
    89
    Location:
    nsw australia
    20191014_082705.jpg
    20191014_082625.jpg

    barely opened the port just rolled it in the edges. Thoughts?

    20191014_082729.jpg

    For my next stupid question...

    Gaskets for the transfer cover plates, what materiel to make them out of?

    Nice pipes Ronaldo, i wonder if i can fit something like that out the LHS.
    I have a couple of ideas on spark arrestor screens in pipes... hopefully one will work.
     
    Ronaldo and CJ Brown like this.
  13. cuinrearview

    cuinrearview Red saw lover

    Joined:
    Oct 24, 2014
    Messages:
    6,809
    Likes Received:
    11,879
    Location:
    Hillsdale, MI
    The shape looks good. Make sure you open it up on the outside too. Put your gasket up to the opening. Also, bevel the inside so the ring has a smooth transition over the port edges.
     
    henry r likes this.
  14. old guy

    old guy Addicted to ArboristSite

    Joined:
    Oct 23, 2008
    Messages:
    1,374
    Likes Received:
    2,124
    Location:
    Becker Mn
    I used permatex ultra grey for those covers.
     
    henry r likes this.
  15. henry r

    henry r ArboristSite Member

    Joined:
    Oct 6, 2019
    Messages:
    59
    Likes Received:
    89
    Location:
    nsw australia
    Back again... real life got in the way there...

    The muffler now has a big hole in the baffle and a big hole in the top where the original outlet was.
    Sorry, no pictures as this is a family site and i don't want to give any children nightmares.
    In all honesty is is probably the crappiest bit of workmanship i have done in ages so i don't want to show it off.

    Oldguy, will the ultra grey be ok for sealing the cylinder to the block?

    Thanks.
     
  16. old guy

    old guy Addicted to ArboristSite

    Joined:
    Oct 23, 2008
    Messages:
    1,374
    Likes Received:
    2,124
    Location:
    Becker Mn
    It works for me.
     
    henry r likes this.
  17. Huskitoter

    Huskitoter ArboristSite Operative

    Joined:
    Jan 17, 2018
    Messages:
    342
    Likes Received:
    315
    Location:
    Georgia
    Is that puppy throwing chips yet?
     
  18. henry r

    henry r ArboristSite Member

    Joined:
    Oct 6, 2019
    Messages:
    59
    Likes Received:
    89
    Location:
    nsw australia
    :(

    I've been distracted with house jobs.

    It is all cleaned up bar the cylinder and muffler, all the sub assemblies are back together, again bar the cylinder.

    Muffler, top cover and handle trial fit done. The muffler is marked with clearances to help work out how the exhaust stub will sit.
    Rough calculations of muffler exhaust hole size done...

    I'm at the "staring at the muffler running through options to try to find one that fits all my criteria" stage.

    I was hoping to use it this sunday (and last sunday), tonight will be the make or break point for that.

    Pics from sun afternoon before the bits started going back on.

    20191020_175700.jpg 20191020_175647.jpg

    The flywheel nut is back on the right way round waiting to be torqued.

    These pin holes in the cyl are a worry but there is nothing i can do now.

    20191024_134835.jpg


    Btw, should i oil the clutch bearing with bar oil or 2 stroke oil?

    Thanks
    Henry.
     
  19. Huskitoter

    Huskitoter ArboristSite Operative

    Joined:
    Jan 17, 2018
    Messages:
    342
    Likes Received:
    315
    Location:
    Georgia
    Cylinder base below transfers looks good. Are they even width on both sides? Hard to tell in pic. Some take it all the way out and case match the base gasket. I went somewhere between yours and the gasket on a 350 that runs strong.

    I use grease on the drum bearing.
     
    henry r likes this.
  20. holeycow

    holeycow Addicted to ArboristSite

    Joined:
    Sep 9, 2011
    Messages:
    2,100
    Likes Received:
    2,288
    Location:
    Alberta, Canada
    "I'm left handed but do maybe about a third of my cuts right"

    Trigger in the right hand, front bar in the left. Thumbs fully engaged. That's how it's done. It is like a can opener. It is designed to be held one way only.

    Safety Nazi out...

    And good luck with the saw!!
     
    henry r and cuinrearview like this.

Share This Page