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Buell Forum » XBoard » Buell XBoard Archives » Archive through November 24, 2005 » XB oil drain plu torque 29-34 ft pounds??? « Previous Next »

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Cliffb
Posted on Friday, November 18, 2005 - 07:20 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Question for you XB mechanics. I've changed the oil on my Ulysses twice during break-in. The first time I set my torque wrench to 25 ft.lbs and got nowhere near that before exceeding my comfort level. Than darn drain plug just seemed to keep turning and I had visions of stripping threads. I can't imagine getting to 34 ft. lbs.
Are the suggested torque values optimistic or should I have faith and keep turning? I'm wondering if the o-ring makes it seem like it never tightens.
I'm an old aircraft mechanic and this is a quality torque wrench.
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Glitch
Posted on Friday, November 18, 2005 - 07:22 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Maybe it says inch/pounds?
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Daves
Posted on Friday, November 18, 2005 - 07:33 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

I just turn them til snug
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Lovematt
Posted on Friday, November 18, 2005 - 07:48 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

I find that when the bolt head gets about 1/16" from its seating point that the o-ring really starts making it seem tight...the tension is constant but it keeps turning. This is especially try if you cleaned the area, the bolt, and put a new o-ring on (which you should do each time...they are so cheap).

When that bolt head seats you will definitely know it...it just plain stops...that is when the torque will climb quickly but the bolt doesn't turn much after that point. I was a bit concerned the first time too but I watched it closely one time and right when it was binding up I saw the o-ring pieces starting to curl up...that is how I determined what was going on. The next time I put oil on the o-ring and the area around there and the binding was greatly reduced...but the bolt still turned about the same.
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Sgthigg
Posted on Friday, November 18, 2005 - 08:05 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

I have calibrated hundreds of torque wrenchs/ guages/Mics in my time and I have seen alot of TQ wrenches go way out of spec. I have seen Snap-On straight out of the box out of Cal, Pro Tech you name I have seen them all right out of the box from time to time be way off. To the point its almost scary. Even a drop or a hard bump can misalign them. It might be time to recalibrate it. Just my 2cents worth. Let me know if I can help.
Cliff I didnt realize you were a military Aviation Mech. I am A Cal Tech in the Mil now. I also work in the Aviation Community.

(Message edited by sgthigg on November 18, 2005)

(Message edited by sgthigg on November 18, 2005)
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Fullpower
Posted on Friday, November 18, 2005 - 08:53 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

that particular part doesnt need to be tight so much as it needs to be SECURED. I recommend safety wire, thusly:


last thing you want is hot oil drooling on your rear tire at 70 MPH.
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Tank_bueller
Posted on Friday, November 18, 2005 - 09:01 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

I just turn them til snug

O-ring seals should not create "torque" when they seal. Only the metal contact between the bolt and the case creates torque.

If you feel that it's too much, then it most likely is too much.

If using the torque by feel method, check for leak or loose bolt often. I use this method and have no problems.
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