| [GMCnet] Torsion bar question [message #235265] |
Mon, 06 January 2014 13:02  |
BobDunahugh
Messages: 2465
Registered: October 2010
Location: Cedar Rapids, IA
Karma: 11
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Senior Member |
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I checked my bars the last times I had them out 8, and 11 years ago. The flat areas were in line from one end, to the other with no signs of wear, or twist. There was no rust on them. And all the green paint was still very much like new. So are some of these bars that need to be replaced. Twisted, rusty, or worn? The sockets that the bars go into showed no signs of wear either. And the A frames are still painted satin black. It's a 78 with 150,000 on the clock. The only problem that I've ever had in that area was that a pork chop broke in Waterloo Iowa when we were coming back from the Rapids City SD rally. And from what I understand. That is fairly rare.
Bob Dunahugh78 Royale.
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| Re: [GMCnet] Torsion bar question [message #235271 is a reply to message #235265] |
Mon, 06 January 2014 13:21  |
James Hupy
Messages: 6806
Registered: May 2010
Karma: -62
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Bob, the torsion bars that I have replaced were bowed (no longer straight)
and were twisted. The flats on the hex shaped ends were no longer parallel
with each other. I suspect (but do not know for sure) that is a result of
fatigue and results in a twist or unwinding of the bar end to end. When
this happens, to obtain proper ride height, the pork chop has to rotate
so far that it hits the top of the cross member and no more tension can be
obtained by adjusting the bolt. At this point, you either replace the
torsion bar, or install a pork chop that has the hex opening rotated enough
to compensate for the twist. This is my personal experience. Yours may vary.
Jim Hupy
Salem, Or
78 GMC Royale 403
On Jan 6, 2014 11:02 AM, "Bob Dunahugh" <yenko108@hotmail.com> wrote:
> I checked my bars the last times I had them out 8, and 11 years ago. The
> flat areas were in line from one end, to the other with no signs of wear,
> or twist. There was no rust on them. And all the green paint was still very
> much like new. So are some of these bars that need to be replaced. Twisted,
> rusty, or worn? The sockets that the bars go into showed no signs of wear
> either. And the A frames are still painted satin black. It's a 78 with
> 150,000 on the clock. The only problem that I've ever had in that area was
> that a pork chop broke in Waterloo Iowa when we were coming back from the
> Rapids City SD rally. And from what I understand. That is fairly rare.
> Bob Dunahugh78 Royale.
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>
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