The Doc
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| posted on 7/8/06 at 08:49 AM |
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Steering - Bottom UJ
Hi folks,
the bottom UJ on my column is giving me just a twinge of concern. The spline is OK - a perfect match but:
the hole for the retaining bolt is further down the spline meaning an exposed section of spline about 1.5 - 2.00 mm long. Ie. very slightly less
spline in contact. Sould this worry me, or for that matter the SVA man or am I being paranoid.
Also the original escort spline is almost fully closed with a mere 'slit' for pinching up. This one has a bigger area of open space in the
clamp.
What do we think? - and any suggestions for an alternative UJ.
Cheers
Mike
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RazMan
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| posted on 7/8/06 at 09:07 AM |
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I was worried about this too - it just looks sooooo 'only just'. When I mentioned it to my supplier he assured me it was normal.
Cheers,
Raz
When thinking outside the box doesn't work any more, it's time to build a new box
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BKLOCO
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| posted on 7/8/06 at 09:28 AM |
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Make sure you use a 12.9 bolt/caphead in the clamp.
8.8 have been known to fail
A friends racing team had one fail on the track.
Seriously not funny.
Experience is what you get when you don't get what you want!!! 
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tks
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| posted on 9/8/06 at 07:50 AM |
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mhhh
no way you can fail a 8.8 with the steering equipment!
I bet they overtightened the bolt and then it broke while using it but only because it was already damaged...
to shear of a M8 8.8 bolt there is serious power needed!!
TKS
The above comments are always meant to be from the above persons perspective.
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Peteff
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| posted on 9/8/06 at 08:48 AM |
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The clamp bolt shouldn't take any force, the splines are there to do that.
yours, Pete
I went into the RSPCA office the other day. It was so small you could hardly swing a cat in there.
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BKLOCO
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| posted on 9/8/06 at 09:19 AM |
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Perhaps you would like to:
a. Inform Ford of your wisdom. (I'm sure they would love to downgrade the bolt used in this application.)
b. Tell the driver that had one shear whilst on the track that it was just a figment of his imagination.
I'm sure that some "experts" on this forum would argue that the text you are now reading was in fact white not black.
Experience is what you get when you don't get what you want!!!
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tks
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| posted on 9/8/06 at 10:35 AM |
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come on....
don´t wee off that fast please...
The bolt only bends the part in suchs way that the splines bite in each other and that the cut closes..
If you would say that triangular bolt, that one takes force...
Car manufactures have allot of other rulez than we have you know that!
Did you never over tightened a bolt? to the point that you feel that the force needed reduced instead of increased? that the point where the bolt is
still intact but passed his flex limit...
and that also the point where the bolt still holds but not as muchs as we would like.
TKs
The above comments are always meant to be from the above persons perspective.
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02GF74
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| posted on 9/8/06 at 10:48 AM |
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quote:
Originally posted by Peteff
The clamp bolt shouldn't take any force, the splines are there to do that.
yeah, if the clamp was a tight fit, you wouldn't need the bolt in the first place surely? As it is not, the bolt clamps uj onto the splines.
I can't see how there is any force imparted onto the bolt.
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tks
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| posted on 9/8/06 at 10:52 AM |
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also
if it would come loose you still would be able to steer albeit you would have some more play..
wich offcourse woudn´t give you much confidence...
Tks
p.d. We should make sure we aren´t talking about the triangular tube UJ..
The above comments are always meant to be from the above persons perspective.
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BKLOCO
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| posted on 9/8/06 at 11:20 AM |
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Yawn!
Experience is what you get when you don't get what you want!!!
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Peteff
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| posted on 9/8/06 at 02:08 PM |
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Yawn!
Yeah right, once the bolt is tight the splines take the turning force. Don't race teams check this stuff? ( I bet they do now)
a. Inform Ford of your wisdom. (I'm sure they would love to downgrade the bolt used in this application.)
I think they'd rather leave the splines off and save a lot more money.
b. Tell the driver that had one shear whilst on the track that it was just a figment of his imagination.
I don't have a friend with a race team, or an argument. 
Yawn, yawn.
[Edited on 9/8/06 by Peteff]
yours, Pete
I went into the RSPCA office the other day. It was so small you could hardly swing a cat in there.
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David Jenkins
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| posted on 9/8/06 at 02:26 PM |
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In the case of my replacement quick rack, the splined shaft is very slightly smaller than the one on the old rack, and it needs the bolt done up
REALLY tight to get a good connection. I suspect that if the bolt came completely undone the splined shaft would soon destroy the tips of the splines
and rotate without hinderance.
...which would be rather scary.
My bolt is thread-locked into place!
David
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