New Yam-Maj Oil Change Method - Page 4

 



I have to agree with you, really.  You can't go wrong with a torque wrench,
that's for sure, and it's probably the thing to do for a novice given
Polarhound's remark out that bike being easily stripped.

  The wrenches I use don't have a lot of leverage, but even then I don't truly
tighten it as tight as I can.  Consider the pull it takes to lift a 25 pound bag
of rice or potatoes off the ground.  Take that pull and apply it to a ratchet
that is maybe 8 inches long.  Let's say the center point of the pull is more
like 6 inches as the pull is in the mid-point of your grip.  That's 1/2 ft times
25 pounds, or 12.5 ft-lbs.  I probably pull a little harder than that.  I
basically snug up the bolt and give it a couple tugs, one handed of course.


Robert

 

wrote:

|>
|>> Robert Bolton wrote:
|>>>>Robert Bolton wrote:
|>>
|>>>>>>My manual hasn't arrived yet...how tight?
|>>
|>>>>>As tight as you can by hand while using the socket
|>>>>>and the strong lever.
|>>
|>>>>You're joking, right?
|>>
|>>> What, you don't like sockets? (ha-ha).
|>>
|>>> Sorry, but I don't know what you're taking exception to.
|>>
|>>  Seems like as tight as you can with a strong lever would
|>> be around 100ft lbs for many people. More for some, less for
|>> others. That would be than enough to butcher the threads
|>> or at least make removal a major challenge, don't you think?
|>> In my experience, a lot of people tend to over tighten
|>> fasteners. If someone doesn't have a good feel for how tight
|>> something should be, I think they should use a torque wrench
|>> and torque it to the factory spec.
|>>
|>I have to agree with you, really.  You can't go wrong with a torque wrench,
|>that's for sure, and it's probably the thing to do for a novice given
|>Polarhound's remark out that bike being easily stripped.
|>
|>  The wrenches I use don't have a lot of leverage, but even then I don't truly
|>tighten it as tight as I can.  Consider the pull it takes to lift a 25 pound
bag
|>of rice or potatoes off the ground.  Take that pull and apply it to a ratchet
|>that is maybe 8 inches long.  Let's say the center point of the pull is more
|>like 6 inches as the pull is in the mid-point of your grip.  That's 1/2 ft
times
|>25 pounds, or 12.5 ft-lbs.  I probably pull a little harder than that.  I
|>basically snug up the bolt and give it a couple tugs, one handed of course.
|>
|>
|>Robert
|>


    Wrench meters are good to but they  cost or are inacurate....I usually
have problem with that, compounded were I misinterpret an O ring slip for a
crossthread.

    I always tend to undertighten, especially my spark plugs that start to
lose compression...book says 1/4---1/2 turn past hand tight, 1/2 turn is a
helicoil scare, maybe just the 1/4 turn.  

Cheers


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