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Let's talk race chain

Discussion in 'Just Chains' started by Wolverine, Jan 20, 2019.

  1. chipper1

    chipper1 Here For The Long Haul!

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  2. Armbru84

    Armbru84 Here For The Long Haul!

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    Thanks Brett. Not sure...see how it runs on a 372 and go from there.
     
  3. Armbru84

    Armbru84 Here For The Long Haul!

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  4. Armbru84

    Armbru84 Here For The Long Haul!

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    Turned out pretty good. Lot more consistent than my old Method of doing a few at a time.

    A5161487-2095-4D1F-9200-142472CEB8E3.jpeg 2FD297E4-88B2-438A-A57C-90BFA896F270.jpeg
     
  5. chipper1

    chipper1 Here For The Long Haul!

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  6. Billy Currie

    Billy Currie Super OPE Member

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    When stoning a chain, are you just hitting the rivets and straps, or are you going a little higher taking a little off the side of the cutter tooth as well?

    I've never seen this done before.

    :roto2nuse:
     
  7. Wolverine

    Wolverine Do you even burn wood bro?

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    Stoning is sideplate of cutter only.
    IMG_0871.JPG
     
  8. Billy Currie

    Billy Currie Super OPE Member

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    Thank you! I didn't realize the teeth were so different that they would need that.
     
  9. Willard

    Willard Pinnacle OPE Member

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    Zoom in on that cutter real close and you'll see the gap between the rails and the heel of the cutter. That's how the Oregon AntiVibe works, the one barb arrow between the rivets is the trademark.
    I never liked this chain for race chain, I only use the old style chain with the even heel and toe.
    No bounce when filing and it's solid foundation offers better penetration into the wood starting the chip.
    Here's a pic of the differences.
    Top 2 cutters are old school.
    20190711_225023.jpg
     
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  10. Willard

    Willard Pinnacle OPE Member

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    When this chain is at full rpm the gap under the heel gets wider when the loop tightens up.
    Same happens when you add extra tension on the chain when filing the chain on the saw.
    The chain looks like it may be slack in the pic but still shows gap.
    IMG_0871.JPG
     
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  11. Deets066

    Deets066 AKA Deetsey

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    Looks wore to me, being that it’s been run a bit and still a lot of cutter. With a full cutter it pivots back when in the cut and all of the force is on the back rivet. I’d lay money that a new one sits flat.
     
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  12. Deets066

    Deets066 AKA Deetsey

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    9BBB9EBB-A3D0-4A4E-A06F-643D23443C11.jpeg

    Same gap with this chain that had a lot of run time with a full cutter
     
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  13. Time's Standing Stihl

    Time's Standing Stihl Below me...

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    You run that chain in Iowa??
     
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  14. Deets066

    Deets066 AKA Deetsey

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    Yup, 346
     
  15. Willard

    Willard Pinnacle OPE Member

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    Well Deets I'll lay money down that a new chain won't lay flat to the rails.
    Here's a brand loop of 72LGX on my 066 work saw.
    If you're going to spend up to 40 hours building a race chain, do it right.:)
    20190712_093607.jpg 20190712_093634.jpg
     
    Last edited: Jul 12, 2019 at 11:04 AM
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  16. RI Chevy

    RI Chevy DollyKitaStihlvarna Runner

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    Maybe run it first? Make a few cuts, stretch it out, then reasess?
     
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  17. concretegrazer

    concretegrazer Pinnacle OPE Member

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    Won't change that. But it's not the end of the world as some make it out to be.
     
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  18. Deets066

    Deets066 AKA Deetsey

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    I’ve had to correct that issue before when mixing different chassis and cutters
     
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  19. CR888

    CR888 Pinnacle OPE Member

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    Pretty confident Willard is right (he's been looking at chain for decades) but these fine details are not realised by many, the cutters look similar until you closely examine them and look at the gap between the rivets and base of cutters. The front rivet has more metal between rivet and base compared to the rear (this just my unedumacaded opinion). And this translates to a change in behavior of the cutter while cutting. Many could stare of the old and the new (comfort/vibe-ban) & not realise a difference....but its there. Not sure who invented it, Stihl may have purchased the rights to use it off Oregon or something. I too like the older more 'flat' design.
     
  20. Willard

    Willard Pinnacle OPE Member

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    It's all in the details.
    Here's 2 pics of the most sought after race chain . The Stihl 46RST High Tooth.
    Take a look at the bottom of the cutters under the rivets.
    No consumer anti vibration rated profile on this chain.;)
    404ht.jpg 404htt.jpg
     
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