Using OTC 927 to re & re torsion bars

gary j zingle

New member
Jun 5, 1999
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Scott

I made up 1 - 1 1/4" X 1 1/4" cross bar, 2 - threaded rods
and 2 - 1 1/4" X 1 1/4" so that I could use the OTC 927 on the
torsion bars.

Considerable force is required to torque up the torsion bars
so that the bolts can be removed. The length of the center
screw was an issue with the OTC 927, not because of the
height required (I require quite a bit of room to get
under the coach) but rather because of the force from the
torsion bars.

The OTC 927 wants to lay over on it's side. That is why I
shortened the outside threaded rods and made the
2 - 1 1/4" X 1 1/4" tubes. These tubes are intended to offer
some support for the outside threaded rods..

I have some photos etc. that I was preparing so that they might
be posted somewhere.

I will send these photos to you under seperate cover for your comment.

I have successfully relaxed the torsion bars
(used longer threaded rods than in photos) but had not yet
posted information on the above. I was waiting for reassembly
this coming weekend. I don't like to say something worked
until I can say it worked BOTH to remove and to reinstall.

Regards

Gary Zingle
1973 GMC 26 foot
 
I will post the pictures if you want. Send some words also to explain how
you do it.
gene

>Scott
>
>I made up 1 - 1 1/4" X 1 1/4" cross bar, 2 - threaded rods
>and 2 - 1 1/4" X 1 1/4" so that I could use the OTC 927 on the
>torsion bars.
>
>Considerable force is required to torque up the torsion bars
>so that the bolts can be removed. The length of the center
>screw was an issue with the OTC 927, not because of the
>height required (I require quite a bit of room to get
>under the coach) but rather because of the force from the
>torsion bars.
>
>The OTC 927 wants to lay over on it's side. That is why I
>shortened the outside threaded rods and made the
>2 - 1 1/4" X 1 1/4" tubes. These tubes are intended to offer
>some support for the outside threaded rods..
>
>I have some photos etc. that I was preparing so that they might
>be posted somewhere.
>
>I will send these photos to you under seperate cover for your comment.
>
>I have successfully relaxed the torsion bars
>(used longer threaded rods than in photos) but had not yet
>posted information on the above. I was waiting for reassembly
>this coming weekend. I don't like to say something worked
>until I can say it worked BOTH to remove and to reinstall.
>
>Regards
>
>
>Gary Zingle
>1973 GMC 26 foot
>
Genef -- 77PB/ore/ca
GMC MOTORHOME INFORMATION
http://www.california.com/~eagle/
 
> Scott
>
> I made up 1 - 1 1/4" X 1 1/4" cross bar, 2 - threaded rods
> and 2 - 1 1/4" X 1 1/4" so that I could use the OTC 927 on the
> torsion bars.......
> I was waiting for reassembly
> this coming weekend. I don't like to say something worked
> until I can say it worked BOTH to remove and to reinstall.
>
>

Great first-hand information,Gary. Please keep us updated on how it turns
out this weekend.Phil Stewart
76 Transmode, TN
 
Scott...

>Any thoughts?

Anywhere in the literature from OTC, does it say how much force the unit
is rated to generate?

Regards,
John 74 Glacier
 
The OTC927 is rated at 10 tons

>Scott...
>
>>Any thoughts?
>
>Anywhere in the literature from OTC, does it say how much force the unit
>is rated to generate?
>
>Regards,
>John 74 Glacier
>
>
>
 
>Looking at my 97 grainger catalogue the OTC 927 has a capacity of
>10 tons using its components. The weakest link is the U-bolt I
>would think. Scott

>The OTC927 is rated at 10 tons Tom

So even with a three foot lever arm, there is no chance any of us could
break the OTC by pulling on a wrench... but just wondering what you folks
think, is a (skinny) bottle jack rated at 2 tons and 3 1/8 inches wide, a good
candidate for a persuader if we encounter a reluctant hub or bearing?

Regards,
John
 
This is a great problem to solve. I have tried to
jury rig something with gear pullers, steel plates,
chains, etc and not only didn't work but made me
nervous. Keep it up.

Bill
'74 Glacier

=====

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