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

Porting Tools

Discussion in 'Chainsaw' started by logger450, Jul 13, 2018.

  1. logger450

    logger450 ArboristSite Operative

    Joined:
    Feb 20, 2013
    Messages:
    115
    Likes Received:
    37
    Location:
    upstate,ny
    I was thinking about buying some porting tools. I see a lot of used Foredom tools on ebay. I was wondering what model to look for. I see everyone likes the CC182 for the right angle hand piece. I was also wondering what bits to start with. This is just for my saws. I do not want to do it for a living.
     
    smokey7 likes this.
  2. ammoaddict

    ammoaddict ArboristSite Operative

    Joined:
    Sep 23, 2017
    Messages:
    206
    Likes Received:
    140
    Location:
    Granite Falls, NC
    I am interested in this as well. I just like to tinker with stuff.
    Sent from my Moto G (4) using Tapatalk
     
  3. blsnelling

    blsnelling Site Contributor

    Joined:
    Nov 8, 2006
    Messages:
    53,037
    Likes Received:
    30,470
    Location:
    Franklin, OH
  4. Leafy

    Leafy ArboristSite Member

    Joined:
    May 2, 2018
    Messages:
    57
    Likes Received:
    25
    Location:
    Nh
    I got tired of crappy "carbide" burrs that you get from Amazon or ebay and started buying actual carbide burrs from carbide depot. It's nice that their standard shipping is sometimes 1 day.
     
  5. Chainsaw Jim

    Chainsaw Jim Addicted to ArboristSite

    Joined:
    Jun 5, 2014
    Messages:
    2,301
    Likes Received:
    2,610
    Location:
    Springfield Oregon
    Most fastener and welding supply stores carry a top of the line brand of burr. You think $20 each is a little steep, but I've been using the same two burrs to grind cylinders and gut mufflers for over 3 years now. They're still sharp and I have no plans to replace them any time soon.
     
    smokey7 and Rob Stafari like this.
  6. Leafy

    Leafy ArboristSite Member

    Joined:
    May 2, 2018
    Messages:
    57
    Likes Received:
    25
    Location:
    Nh
    $20 each is steep when you an get them for 10-15 each with 7 dollars for shipping and they have special profiles, extended reach, and aluminum specific ones.
     
  7. Chainsaw Jim

    Chainsaw Jim Addicted to ArboristSite

    Joined:
    Jun 5, 2014
    Messages:
    2,301
    Likes Received:
    2,610
    Location:
    Springfield Oregon
    Mad arithmetic skillz. :rock2:
     
    cuinrearview likes this.
  8. srcarr52

    srcarr52 We can't stop here, this is bat country.

    Joined:
    Aug 13, 2009
    Messages:
    2,633
    Likes Received:
    1,541
    Location:
    Coralville, IA
    Try Buckeye Carbide for burrs. It is what you get from McMaster with a significant markup.
     
    smokey7 and Rob Stafari like this.
  9. Armbru84

    Armbru84 Sucker for saws over 100cc

    Joined:
    Jul 12, 2016
    Messages:
    536
    Likes Received:
    1,398
    Location:
    Michigan
    smokey7 likes this.
  10. Huskybill

    Huskybill ArboristSite Guru

    Joined:
    May 21, 2018
    Messages:
    574
    Likes Received:
    448
    Location:
    Northeast
  11. blsnelling

    blsnelling Site Contributor

    Joined:
    Nov 8, 2006
    Messages:
    53,037
    Likes Received:
    30,470
    Location:
    Franklin, OH
    Not what we use on these little chainsaw cylinders.
     
    logger450 likes this.
  12. logger450

    logger450 ArboristSite Operative

    Joined:
    Feb 20, 2013
    Messages:
    115
    Likes Received:
    37
    Location:
    upstate,ny
    A lot of good advice from everyone. I think I will buy a used Foredom off eBay. But look for good burs. I mainly want to clean up the transfers and exhaust port. Don’t know if I should clean up the intake port or leave it rough
     
  13. ncfarmboy

    ncfarmboy Addicted to ArboristSite

    Joined:
    Mar 20, 2011
    Messages:
    1,474
    Likes Received:
    417
    Location:
    Hayesville, NC
    I have 3 used Foredoms I bought on Ebay been using them for years. Only trouble I've had was with inner drive cable breaking in the 39" flex shaft. They will break when you hang a Burr.
    Look for a Grobet (rebranded Foredom). I bought a new one for around $100.00 IIRC 5 yrs. ago. Came with foot pedal, flex shaft and #30 handpiece.
    Shep
     
    logger450 likes this.
  14. Huskybill

    Huskybill ArboristSite Guru

    Joined:
    May 21, 2018
    Messages:
    574
    Likes Received:
    448
    Location:
    Northeast
    Your not working on the transfer ports inside the cylinder. You need to chamfer the sharp edge of the ports inside the cylinder.
     
  15. blsnelling

    blsnelling Site Contributor

    Joined:
    Nov 8, 2006
    Messages:
    53,037
    Likes Received:
    30,470
    Location:
    Franklin, OH
    I don't? OK, thanks. :confused:
     
    Mygalomorph and Cantdog like this.
  16. Jacob J.

    Jacob J. Tree Freak

    Joined:
    Aug 26, 2001
    Messages:
    16,963
    Likes Received:
    6,034
    Location:
    Oregon
    Lol, you've only ported a few hundred saws Brad. Everyone knows that a chainsaw can't be modified. :laugh:
     
    blsnelling, Mygalomorph and Cantdog like this.
  17. Huskybill

    Huskybill ArboristSite Guru

    Joined:
    May 21, 2018
    Messages:
    574
    Likes Received:
    448
    Location:
    Northeast
    How do you widen the transfer ports without the 90 degree grinder?

    I been building, porting heads for drag race engines since I was 16yo I’m. I been porting dirtbike engines for 25 years. I’m not new to porting. I asked a question on how you chamfer the transfer ports.
     
  18. boomeradf

    boomeradf New Member

    Joined:
    Apr 14, 2018
    Messages:
    4
    Likes Received:
    5
    Location:
    USA
    @Huskybill ? go along way when asking questions. You make rambling statements that often make you appear to be a bitter know it all.
     
    dmb2613 and Mygalomorph like this.
  19. srcarr52

    srcarr52 We can't stop here, this is bat country.

    Joined:
    Aug 13, 2009
    Messages:
    2,633
    Likes Received:
    1,541
    Location:
    Coralville, IA
    Use a small pencil style handpiece and a ball stone or ball diamond burr to chamfer the port edges. I have a 3/8” diameter 320 grit diamond I like to use.

    I’ve seen people be successful with widening and raising transfer ports with the side of a cutoff wheel in a straight handpiece. It take a lot of time and patients but it can be done. Still a 90 deg handpiece allows for a lot more freedom on port shape and direction.
     
  20. Huskybill

    Huskybill ArboristSite Guru

    Joined:
    May 21, 2018
    Messages:
    574
    Likes Received:
    448
    Location:
    Northeast
    I seen and measured the 2100 cylinder that was ported by a husky rep. I made changes to a few husky dirtbikes one at a time. On my final bike I did all the changes in the ports one shot. Open up the transfers, raise the exhaust port, widen it, arch it, lower the intake port, which changed the port timing, polish it all. Advance the timing. The engine reaction time to the throttle movement was right there. It’s like the engine knew you were going to rev it ahead of time. The mili second response.
    Drag racing down the straights she beat everything. Me and the oldtimers would laugh watching this old 81 husky 250 cr bike. My point is I hear a lot of people say porting doesn’t work. Just a little porting goes a long way.
     

Share This Page