Welcome to ArboristSite.com! Log in or Sign up to interact with the ArboristSite community.

ArboristSite.com Sponsors
 
 


  1. Please see this post Click Here Please ask questions if you have them!! I hope this is going to be great for us all.
    Dismiss Notice

big bore for 460 Magnum

Discussion in 'Milling & Saw Mills' started by relic, Dec 8, 2016.

  1. relic

    relic ArboristSite Lurker

    Joined:
    Apr 26, 2011
    Messages:
    11
    Likes Received:
    4
    Location:
    great white north
  2. Cease232

    Cease232 ArboristSite Operative

    Joined:
    Mar 13, 2009
    Messages:
    478
    Likes Received:
    496
    Location:
    Oregon
    Most would say the big bore kits are a bust and create no more or less power than OEM. Never tried one myself. Was your cylinder not salvageable?


    Sent from my iPhone using Tapatalk
     
  3. Big_6

    Big_6 ArboristSite Member

    Joined:
    Aug 6, 2014
    Messages:
    82
    Likes Received:
    73
    Jason at
    Jmssaws is your man.
     
    davhul and SeMoTony like this.
  4. Fallguy1960

    Fallguy1960 ArboristSite Member

    Joined:
    Feb 15, 2008
    Messages:
    93
    Likes Received:
    12
    Location:
    Elk River MN
    I have done it to my 460 Mag. I bought the saw and it had issues so I can't say it increased to hp.
     
    SeMoTony likes this.
  5. relic

    relic ArboristSite Lurker

    Joined:
    Apr 26, 2011
    Messages:
    11
    Likes Received:
    4
    Location:
    great white north
    Cylinder was a little better than the piston
     

    Attached Files:

  6. Mad Professor

    Mad Professor Addicted to ArboristSite

    Joined:
    Jul 2, 2007
    Messages:
    5,892
    Likes Received:
    1,606
    Location:
    North East USA
    Clean the transfer off piston transfer from the cylinder and post a picture. If it's salvagable get an OEM piston
     
    SeMoTony likes this.
  7. Cease232

    Cease232 ArboristSite Operative

    Joined:
    Mar 13, 2009
    Messages:
    478
    Likes Received:
    496
    Location:
    Oregon
    Most cylinders are salvageable with a little work. Either by sanding or muriatic acid. OEM piston will be less than the big bore kit and run better.


    Sent from my iPhone using Tapatalk
     
    SeMoTony likes this.
  8. SeMoTony

    SeMoTony Addicted to ArboristSite

    Joined:
    Oct 28, 2016
    Messages:
    1,732
    Likes Received:
    4,597
    Location:
    S E Mo
    My 460 mag responded very well to DP cover with muffler mod and hi flo air filter.Largest cut I've made so far in my avatar. Oregon chisel skip on 60" cannon bar. The log was 37" cut with alaskan carring 42" bar same chain. I paid attention to tuning advice, Bsnelling for example, lost the limiters. In the cut listened to the saw, she will sing at right tune, and avoided bog. Bobl refers to the "self-feeding speed" of progress.In spite of all that I've got a NWP big bore p&c on the shelf in case. Slice safe & well.

    Left out earlier 3 most important items Re; slicing logs Sharpen chain correct height of depth gages....... chain as sharp as possible w/rakers set to height to throw chips not dust...read milling 101 to learn from masters that learned from other masters about sharping chain and setting rakers to throw chips like Bobl has xcelent description with photos on several threads. Njoy safely
     
  9. Ryan'smilling

    Ryan'smilling ArboristSite Guru

    Joined:
    Mar 1, 2013
    Messages:
    765
    Likes Received:
    1,463
    Location:
    United States
    If you want more power for a milling saw, here's what you should do. Fix your 460 with OEM parts. Have someone qualified do the work. Then sell your 460 and buy a bigger saw. Ms660, 395xp, something like that. A 460 is a great saw, but milling isn't what it's designed for.
     
    davhul and Cease232 like this.
  10. SeMoTony

    SeMoTony Addicted to ArboristSite

    Joined:
    Oct 28, 2016
    Messages:
    1,732
    Likes Received:
    4,597
    Location:
    S E Mo
    according to rumours about warranty cover... ya don't tell on yourself about milling with any of the saws. On the other end of the scale I began with an ms-170 hanging onto a beam maker style guide. Still use same set up for edgeing thick slices & cutting posts outof smaller diameter logs. As someone else states "not the size of the dog inna fight, size of the fight in the dog" in other words a person with the skill & patience can get a lot more done with a lot less than a person in big rush.
     
  11. relic

    relic ArboristSite Lurker

    Joined:
    Apr 26, 2011
    Messages:
    11
    Likes Received:
    4
    Location:
    great white north
    it's grooved pretty good. I do like the idea of a stock rebuild with a DP muffler and highflow filter. If I was seriously into milling and it wasn't a once in awhile hobby I'd stop farting around and get an 880. I started with an MS261 and got lots done with that so the 460 needs to last me till my sauna and treefort are done. Just a little more power and I'll be good. I appreciate all the replies. Where is this Jmssaws guy? Does he service saws?
     

    Attached Files:

  12. Ryan'smilling

    Ryan'smilling ArboristSite Guru

    Joined:
    Mar 1, 2013
    Messages:
    765
    Likes Received:
    1,463
    Location:
    United States
    @jmssaws is in Missouri. He fixes saws so they're better than when they were new.
     
    davhul likes this.
  13. davhul

    davhul ArboristSite Guru

    Joined:
    Jan 29, 2016
    Messages:
    551
    Likes Received:
    602
    Location:
    Us
    And a good price for what you get from what I see
     
  14. jmssaws

    jmssaws Addicted to ArboristSite

    Joined:
    May 11, 2015
    Messages:
    1,981
    Likes Received:
    2,987
    Location:
    missouri
    If you want it stock then the oem cylinder will be more powerful.

    As mentioned above,most cylinders can be saved.

    I'm going to say it got a seal leaking on the pto side from a bad bearing or more likely the case is beat out from milling.

    Just because a smaller saw will run a long bar doesn't necessarily mean that you should, bearings and the bearing pocket in the case,crankshaft size,clutch size,oiler and flywheel size and it's ability to keep it Kool are reasons why the bigger saw is better,not because it runs the bar and chain better,it's because it will live doing it.
    You can fix the 460 but it will be a quick death again on a mill.

    Fix or have the 460 fixed then sell it and put the money towards a bigger saw.
     
    SeMoTony likes this.
  15. SeMoTony

    SeMoTony Addicted to ArboristSite

    Joined:
    Oct 28, 2016
    Messages:
    1,732
    Likes Received:
    4,597
    Location:
    S E Mo
     
  16. jmssaws

    jmssaws Addicted to ArboristSite

    Joined:
    May 11, 2015
    Messages:
    1,981
    Likes Received:
    2,987
    Location:
    missouri
    I built a 044 hybrid last week with a 046bb p&c and was surprised at how well the cylinder looked,it was timed the same as the oem 046 cylinder and made a decent runner.
    I built another 044 hybrid with a oem 460 cylinder at the same time and the oem saw is ahead by a fair amount and I think it's because the 54mm piston just can't be lightened enough to compete.
     

Share This Page