Cam lean on a Chill

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This topic contains 6 replies, has 3 contributors, and was last updated by mick Mick 10 months, 2 weeks ago.

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  • August 24, 2013 at 4:30 pm #591775 Back to Top REPORT
    mick
    Mick

    Joined: 8/2/2009
    Is there a way to adjust the cam lean on a chill that has the floating yokes.? I have the Chill, a 70lb max, set at around 62 lbs. 29″ draw with a whisker biscuit rest. I am shooting FMJ 340 spine arrows with Thunderhead 125 grain broadheads. I’m really having a hard time getting consistant groups. The top cam seams to be really leaning more than the bottom. My broadheads fly low left of field points. I tried adjusting the rest up with no luck, to a point where i would be nock low of square and also don’t want to adjust the rest anymore right because of the Bazer vanes hitting the cables. The only thing I can think is the cam lean is causing such inconsistencies. Any help would be greatly appreciated.
    August 24, 2013 at 5:12 pm #591779 Back to Top REPORT
    gjarcher
    gjarcher

    Age: 71
    Joined: 10/3/2006
    Location: Colorado
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    No. Limb twist/cam lean can not be adjusted because the yokes are floating yokes. I asked my dealer about eliminating the ‘washer’ and using a split yoke and he told me it would void the warranty.

    Lay an arrow on the top and bottom cams. If they cross at or outside (shelf-side) of nock height, accuracy will not suffer. If they cross over the string or well above or below the nock height when bow is in spec and tuned, then take it to the dealer for warranty work.

    With a 29″ DL and 70# DW, I’d shoot nothing less than a .300 spine shaft, especially with 125-gr points.

    If the broadheads fly low and left, raise the rest or lower the nock height to get the same elevation as FPs, then correct the right-left by moving the rest in the direction the broadheads hit; i.e. if the broadheads hit left, move the arrow rest out for a RH shooter.

    August 25, 2013 at 3:11 pm #591875 Back to Top REPORT
    mick
    Mick

    Joined: 8/2/2009
    Thanks GJarcher. I laid an arrow across the top cam & it crosse the string at my peep sight ,well above the nock. If I take to the dealer , what could be done to correct this, also my draw weight is set at around 63 lbs. so the 34o arrows should be fine don’t you think? Like stated, i have tried to move my rest up to correct for the bh & fp hitting the same but that would put me at nock low out of square.
    August 25, 2013 at 5:01 pm #591887 Back to Top REPORT
    bow-drawn
    Bow Drawn

    Age: 62
    Joined: 11/14/2007
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    Mick are the cables in the timing holes at the same place? Have they been changed or adjusted since you started shooting it? It should be looked at by a Mathews dealer from the sound of it.
    August 25, 2013 at 6:48 pm #591897 Back to Top REPORT
    gjarcher
    gjarcher

    Age: 71
    Joined: 10/3/2006
    Location: Colorado
    View My Bows
    If the arrow is laid on the shelf-side of the cam, and it crosses over the string at peep height, that is way too much lean. The dealer needs to look at it.

    It could be cam bearings gone bad, or it could be limb issues. Either way, under warranty whatever parts need to be replaced will be taken care of through your dealer.

    Mathews has always been very responsive when I’ve had warranty work, hopefully you’ll be back shooting in no time also.

     

    … .340 spine shafts would be fine with 100-gr FP/BH. Cut them to 28.5 AMO length (insert face to nock groove) and you should have about 11% FOC. If you stay with the 125-gr FP/BH, they may shoot OK depending on form, etc. If you have problems tuning or poor groups,  you might have to bump up the spine to .320 ~330.

    Untitled-1

    August 26, 2013 at 6:26 am #591997 Back to Top REPORT
    mick
    Mick

    Joined: 8/2/2009
    Thanks for the info, I will have my dealer look at it today.
    August 28, 2013 at 5:55 am #592323 Back to Top REPORT
    mick
    Mick

    Joined: 8/2/2009
    Took it to the dealer & Mathews is going to replace the limbs.
    Bow Drawn, Yes the cables where centered in the holes.
    Thanks again for your input.
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