On Jul 7, 12:02*pm, I am Tosk wrote:
In article 6ff46d9b-d811-4174-ae40-ed87d596d354
@z10g2000yqb.googlegroups.com, says...







On Jul 7, 10:37*am, W1TEF wrote:
On Wed, 7 Jul 2010 06:46:03 -0700 (PDT), jamesgangnc

wrote:
On Jul 7, 8:50*am, Richard Casady wrote:
On Wed, 7 Jul 2010 04:40:31 -0700 (PDT), jamesgangnc

wrote:
I'm thinking that it's just sagged over the years till it has negative
camber. *That seems to be the most logical explanation since I have
the same wear problem on both sides. *A bent axle would not likely be
bent symetrically. *Nor does it seem reasonable that the toe would
change on both sides.

It is not going to break. The yield point is a substantial percentage
of the stress at which it would break. It it bends sitting, it would
break the first time you hit a bump.

Question is will my parking it with a floor jack under the center bent
it back over time.

No. See above.

Really? *Cause it bows up about 3" in the center when I lift the
entire trailer and boat from the center of the axle with the floor
jack. *You're saying that doesn't matter, that's not enough to bend it
any. *Even if I do this for cummulative months?

Did I understand you right - it bows a full 3"?

There is no way it should flex a full 3" and that is probably your
problem.- Hide quoted text -

- Show quoted text -

No, you don't understand. *It only flexes up when I put a floor jack
under the center of the axle and jack it up till it's trying to lift
the whole thing off the ground. *It's only a 2" square tube axle with
a 19' V8 boat on the trailer. *2" square axles can be used up to
3500lbs. *The axle between the springs normally doesn't have any
significant load. *The load is all on the last 4" from the springs to
the spindle.

I'm doing this because I'm thinking that over the 20 yeasr of it's
life it has slowly sagged in the other direction. *Now I'm trying to
make it sag back the other way but hopefully a bit faster since I'm
putting a lot more stress on it.

If it does go back it will have been bent in two directions and the
metal will be weakened at the bend point and will soon bend again. Three
options stand out.
Get a new Axel
weld support into old axle once it is in place.
Leave the bend in the middle and do two proper bends in a "unbent" area
further out from the middle of the axle on each side...

--
Rowdy Mouse Racing - We race for cheese!- Hide quoted text -

- Show quoted text -

It's not visibly out of straight or visibly bent anywhere. I'm not
trying to bend it at one point, I'm trying to bend it all across the
axle. So I'm thinking we're talking about nanometers of strech at any
one given point on the axle. I'm having trouble seeing how that
weakens it any appreciable amount. Not to mention that if I take it
to a shop they are just going to "bend" it as well. Since it's
galvanized they can't heat treat it. So I think your "weakened"
theory doesn't hold water.