Home » Public Forums » GMCnet » Porkchop Klocking
| Porkchop Klocking [message #72288] |
Sat, 30 January 2010 18:24  |
g.winger
Messages: 792
Registered: February 2008
Location: Warrenton,Missouri
Karma: 0
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Senior Member |
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Its been awhile, got the torsion bars back in, but, after I put my tool on and started crankin ,I got it about half way and I still had a long,long way to go. So,,,before I crank on them at all the ends are about 2.25 or 2.5 inches down. OR looking from the rear of the drivers side about 3:30 or so. Put them in 1/6th of a turn higher but they are really high. I wrote down how I removed them and lost my notes. Left and Right marks go to the rear,,Yes?? Thanks,,,,PL.
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| Re: [GMCnet] Porkchop Klocking [message #72297 is a reply to message #72288] |
Sat, 30 January 2010 19:20  |
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USAussie
Messages: 15912
Registered: July 2007
Location: Sydney, Australia
Karma: 6
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Senior Member |
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Paul,
Don't worry about loosing your notes! Get out your Maintenance Manual X-7525
and turn to page 3A-19 TORSION BAR AND/OR CROSSMEMBER SUPPORT. See
INSTALLATION. It will refer you to Figure 17 - Positioning of Adjusting Arm
which is on page 3A-14.
Unfortunately it does not say where the "R" and "L" go!
After much discussion here on the GMC net there are four opinions:
1) the letters go in the control arms
2) the letters go in the pork chops
3) it doesn't matter as long as they both go in the same ends
4) it doesn't matter at all
The 1967 Oldsmobile Toronado manual I have doesn't specify either but the
Cadillac Eldorado manual I have says they go in the control arms!
When John Sharpe disassembled his GMC to replace the bushings he measured
how far the pork chop adjusting bolts stuck out of the pork chops. He also
found one torsion bar with the letter in the control arm and the other in
the pork chop. When he put it back together he put them both in the pork
chop. He set the pork chop adjusting screws to the same measurements and the
ride height was the same.
Now Ken H. and Steve F. are going to beat me up! ;-)
To help stave off the beating I will suggest that you put the letters in the
pork chops! ;-)
There is one thing that is EXTREMELY important and that is that the torsion
bar is pulled all the way to the rear so that it is fully inserted in the
pork chop!
Ken H. and I were going to discuss this ad nauseum in Pueblo but
unfortunately he couldn't make the rally. ;-)
Regards,
Rob Mueller
Sydney, Australia
AUS '75 Avion-The Blue Streak TZE365V100428
USA '75 Avion-Double Trouble TZE365V100426
-----Original Message-----
From: gmclist-bounces@temp.gmcnet.org
[mailto:gmclist-bounces@temp.gmcnet.org] On Behalf Of Paul Leavitt
Sent: Sunday, 31 January 2010 11:24 AM
To: gmclist@temp.gmcnet.org
Subject: [GMCnet] Porkchop Klocking
Its been awhile, got the torsion bars back in, but, after I put my tool on
and started crankin ,I got it about half way and I still had a long,long way
to go. So,,,before I crank on them at all the ends are about 2.25 or 2.5
inches down. OR looking from the rear of the drivers side about 3:30 or so.
Put them in 1/6th of a turn higher but they are really high. I wrote down
how I removed them and lost my notes. Left and Right marks go to the
rear,,Yes?? Thanks,,,,PL.
_______________________________________________
GMCnet mailing list
List Information and Subscription Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
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GMCnet mailing list
List Information and Subscription Options:
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Regards,
Rob M. (USAussie)
The Pedantic Mechanic
Sydney, Australia
'75 Avion - AUS - The Blue Streak TZE365V100428
'75 Avion - USA - Double Trouble TZE365V100426
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| Re: [GMCnet] Porkchop Klocking [message #72304 is a reply to message #72297] |
Sat, 30 January 2010 19:55 |
GMCWiperMan
Messages: 1248
Registered: December 2007
Karma: 1
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Senior Member |
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Rob,
I'm not gonna beat up on you! But I will try to explain my rationale one
more time with my favorite example:
1. Take a strip of sheet metal and twist it so that it remains in a spiral
condition. That's equivalent to a pre-stressed torsion bar.
2. Hold one end of the strip in each hand and twist it in the direction to
take out the spiral. That's what normal installation does to a torsion bar.
3. Remember how the strip looks and how you're twisting to remove the
spiral.
4. Turn the strip end-for-end and repeat 2-3.
If you turn the same direction regardless of which way the strip's turned,
I'm right -- it makes not difference which end of the torsion bar is forward
-- on the side of the vehicle matters.
If you turn a different direction dependent upon which end of the strip
you're holding, I'll ask for some ketchup and hot sauce to go on my hat when
we meet again.
Ken H.
Americus, GA
'76 X-Birchaven
www.gmcwipersetc.com
On Sat, Jan 30, 2010 at 8:20 PM, Rob Mueller <robmueller@iinet.net.au>wrote:
> Paul,
>
> Don't worry about loosing your notes! Get out your Maintenance Manual
> X-7525
> and turn to page 3A-19 TORSION BAR AND/OR CROSSMEMBER SUPPORT. See
> INSTALLATION. It will refer you to Figure 17 - Positioning of Adjusting Arm
> which is on page 3A-14.
>
> Unfortunately it does not say where the "R" and "L" go!
>
> After much discussion here on the GMC net there are four opinions:
>
> 1) the letters go in the control arms
> 2) the letters go in the pork chops
> 3) it doesn't matter as long as they both go in the same ends
> 4) it doesn't matter at all
>
> The 1967 Oldsmobile Toronado manual I have doesn't specify either but the
> Cadillac Eldorado manual I have says they go in the control arms!
>
> When John Sharpe disassembled his GMC to replace the bushings he measured
> how far the pork chop adjusting bolts stuck out of the pork chops. He also
> found one torsion bar with the letter in the control arm and the other in
> the pork chop. When he put it back together he put them both in the pork
> chop. He set the pork chop adjusting screws to the same measurements and
> the
> ride height was the same.
>
> Now Ken H. and Steve F. are going to beat me up! ;-)
>
> To help stave off the beating I will suggest that you put the letters in
> the
> pork chops! ;-)
>
> There is one thing that is EXTREMELY important and that is that the torsion
> bar is pulled all the way to the rear so that it is fully inserted in the
> pork chop!
>
> Ken H. and I were going to discuss this ad nauseum in Pueblo but
> unfortunately he couldn't make the rally. ;-)
>
> Regards,
> Rob Mueller
> Sydney, Australia
> AUS '75 Avion-The Blue Streak TZE365V100428
> USA '75 Avion-Double Trouble TZE365V100426
>
>
> -----Original Message-----
> From: gmclist-bounces@temp.gmcnet.org
> [mailto:gmclist-bounces@temp.gmcnet.org] On Behalf Of Paul Leavitt
> Sent: Sunday, 31 January 2010 11:24 AM
> To: gmclist@temp.gmcnet.org
> Subject: [GMCnet] Porkchop Klocking
>
>
>
> Its been awhile, got the torsion bars back in, but, after I put my tool on
> and started crankin ,I got it about half way and I still had a long,long
> way
> to go. So,,,before I crank on them at all the ends are about 2.25 or 2.5
> inches down. OR looking from the rear of the drivers side about 3:30 or so.
> Put them in 1/6th of a turn higher but they are really high. I wrote down
> how I removed them and lost my notes. Left and Right marks go to the
> rear,,Yes?? Thanks,,,,PL.
> _______________________________________________
> GMCnet mailing list
> List Information and Subscription Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>
> _______________________________________________
> GMCnet mailing list
> List Information and Subscription Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>
_______________________________________________
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List Information and Subscription Options:
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| Re: [GMCnet] Porkchop Klocking [message #72316 is a reply to message #72304] |
Sat, 30 January 2010 21:13 |
Steven Ferguson
Messages: 3447
Registered: May 2006
Karma: 0
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Senior Member |
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My head hurts again Ken.
On Sat, Jan 30, 2010 at 6:55 PM, Ken Henderson <ken0henderson@gmail.com> wrote:
> Rob,
>
> I'm not gonna beat up on you! But I will try to explain my rationale one
> more time with my favorite example:
>
> 1. Take a strip of sheet metal and twist it so that it remains in a spiral
> condition. That's equivalent to a pre-stressed torsion bar.
>
> 2. Hold one end of the strip in each hand and twist it in the direction to
> take out the spiral. That's what normal installation does to a torsion bar.
>
> 3. Remember how the strip looks and how you're twisting to remove the
> spiral.
>
> 4. Turn the strip end-for-end and repeat 2-3.
>
> If you turn the same direction regardless of which way the strip's turned,
> I'm right -- it makes not difference which end of the torsion bar is forward
> -- on the side of the vehicle matters.
>
> If you turn a different direction dependent upon which end of the strip
> you're holding, I'll ask for some ketchup and hot sauce to go on my hat when
> we meet again.
>
> Ken H.
> Americus, GA
> '76 X-Birchaven
> www.gmcwipersetc.com
>
>
> On Sat, Jan 30, 2010 at 8:20 PM, Rob Mueller <robmueller@iinet.net.au>wrote:
>
>> Paul,
>>
>> Don't worry about loosing your notes! Get out your Maintenance Manual
>> X-7525
>> and turn to page 3A-19 TORSION BAR AND/OR CROSSMEMBER SUPPORT. See
>> INSTALLATION. It will refer you to Figure 17 - Positioning of Adjusting Arm
>> which is on page 3A-14.
>>
>> Unfortunately it does not say where the "R" and "L" go!
>>
>> After much discussion here on the GMC net there are four opinions:
>>
>> 1) the letters go in the control arms
>> 2) the letters go in the pork chops
>> 3) it doesn't matter as long as they both go in the same ends
>> 4) it doesn't matter at all
>>
>> The 1967 Oldsmobile Toronado manual I have doesn't specify either but the
>> Cadillac Eldorado manual I have says they go in the control arms!
>>
>> When John Sharpe disassembled his GMC to replace the bushings he measured
>> how far the pork chop adjusting bolts stuck out of the pork chops. He also
>> found one torsion bar with the letter in the control arm and the other in
>> the pork chop. When he put it back together he put them both in the pork
>> chop. He set the pork chop adjusting screws to the same measurements and
>> the
>> ride height was the same.
>>
>> Now Ken H. and Steve F. are going to beat me up! ;-)
>>
>> To help stave off the beating I will suggest that you put the letters in
>> the
>> pork chops! ;-)
>>
>> There is one thing that is EXTREMELY important and that is that the torsion
>> bar is pulled all the way to the rear so that it is fully inserted in the
>> pork chop!
>>
>> Ken H. and I were going to discuss this ad nauseum in Pueblo but
>> unfortunately he couldn't make the rally. ;-)
>>
>> Regards,
>> Rob Mueller
>> Sydney, Australia
>> AUS '75 Avion-The Blue Streak TZE365V100428
>> USA '75 Avion-Double Trouble TZE365V100426
>>
>>
>> -----Original Message-----
>> From: gmclist-bounces@temp.gmcnet.org
>> [mailto:gmclist-bounces@temp.gmcnet.org] On Behalf Of Paul Leavitt
>> Sent: Sunday, 31 January 2010 11:24 AM
>> To: gmclist@temp.gmcnet.org
>> Subject: [GMCnet] Porkchop Klocking
>>
>>
>>
>> Its been awhile, got the torsion bars back in, but, after I put my tool on
>> and started crankin ,I got it about half way and I still had a long,long
>> way
>> to go. So,,,before I crank on them at all the ends are about 2.25 or 2.5
>> inches down. OR looking from the rear of the drivers side about 3:30 or so.
>> Put them in 1/6th of a turn higher but they are really high. I wrote down
>> how I removed them and lost my notes. Left and Right marks go to the
>> rear,,Yes?? Thanks,,,,PL.
>> _______________________________________________
>> GMCnet mailing list
>> List Information and Subscription Options:
>> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>>
>> _______________________________________________
>> GMCnet mailing list
>> List Information and Subscription Options:
>> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>>
> _______________________________________________
> GMCnet mailing list
> List Information and Subscription Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>
--
Steve Ferguson
'76 EII
Sierra Vista, AZ
Urethane bushing source
www.bdub.net/ferguson/
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| Re: [GMCnet] Porkchop Klocking [message #72335 is a reply to message #72304] |
Sun, 31 January 2010 04:26 |
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USAussie
Messages: 15912
Registered: July 2007
Location: Sydney, Australia
Karma: 6
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Senior Member |
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Ken,
TRUMPETS BLARE, DRUM ROLL!!! I FINALLY GOT MY HEAD WRAPPED AROUND THIS! HOO
BLOODY RAY!
I didn't have any sheet metal handy so here's what I did.
I took a spring out of my ball point pen and set it down in front of me
lengthwise with one end facing toward me the other away from me.
I put the end closest to me between the thumb and fore finger of my left
hand (pork chop) I put the end furthest away from me between the thumb and
forefinger of my right hand (control arm).
I twisted the end in my right hand to simulate the wheel going up when the
GMC hits a bump and the knuckle goes up. I watched the spring and could see
that the spiral "un-twisted" and the spring diameter got larger.
I then changed the ends of the spring and did the same thing. Low and behold
once again the spring "un-twisted" and the diameter got larger!
This simulated the passenger side torsion bar.
I took the same spring and reversed the procedure to simulate the driver
side and low and behold the spring twisted more and the diameter got
smaller!
Therefore my ball point spring was a passenger side torsion bar! The driver
side would be wound (twisted) in the opposite direction!
Thank you for your perseverance and patience with me!
If you and Elaine are home when Helen and I pass through Georgia I'm cooking
dinner. It'll be BBQ pork chops with twisted macaroni and cheese! That way I
can show you how I did the test! ;-)
Steve, Looks like I won't be causing your head to hurt any more! Well at
least not about this subject anyway! ;-)
It's funny how sometimes you just can't visualize something! Now I know what
a mental block (or blockhead) means!
All the best,
Rob Mueller
Sydney, Australia
AUS '75 Avion-The Blue Streak TZE365V100428
USA '75 Avion-Double Trouble TZE365V100426
-----Original Message-----
From: gmclist-bounces@temp.gmcnet.org
[mailto:gmclist-bounces@temp.gmcnet.org] On Behalf Of Ken Henderson
Sent: Sunday, 31 January 2010 12:55 PM
To: gmclist
Subject: Re: [GMCnet] Porkchop Klocking
Rob,
I'm not gonna beat up on you! But I will try to explain my rationale one
more time with my favorite example:
1. Take a strip of sheet metal and twist it so that it remains in a spiral
condition. That's equivalent to a pre-stressed torsion bar.
2. Hold one end of the strip in each hand and twist it in the direction to
take out the spiral. That's what normal installation does to a torsion bar.
3. Remember how the strip looks and how you're twisting to remove the
spiral.
4. Turn the strip end-for-end and repeat 2-3.
If you turn the same direction regardless of which way the strip's turned,
I'm right -- it makes not difference which end of the torsion bar is forward
-- on the side of the vehicle matters.
If you turn a different direction dependent upon which end of the strip
you're holding, I'll ask for some ketchup and hot sauce to go on my hat when
we meet again.
Ken H.
Americus, GA
'76 X-Birchaven
www.gmcwipersetc.com
_______________________________________________
GMCnet mailing list
List Information and Subscription Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
Regards,
Rob M. (USAussie)
The Pedantic Mechanic
Sydney, Australia
'75 Avion - AUS - The Blue Streak TZE365V100428
'75 Avion - USA - Double Trouble TZE365V100426
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| Re: [GMCnet] Porkchop Klocking [message #73122 is a reply to message #72347] |
Sat, 06 February 2010 21:12 |
Bob de Kruyff
Messages: 4260
Registered: January 2004
Location: Chandler, AZ
Karma: 1
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Senior Member |
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""WHEEEWW!!! Finally! Guess I really am more stubborn than you are
hard-headed. Right or wrong, :-)""
Don't forget that torsion bars and coils springs are more or less the same kind of spring when you figure out how they operate--the only difffernce is packaging.
Bob de Kruyff
78 Eleganza
Chandler, AZ
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| Re: [GMCnet] Porkchop Klocking [message #73125 is a reply to message #73124] |
Sat, 06 February 2010 21:24 |
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USAussie
Messages: 15912
Registered: July 2007
Location: Sydney, Australia
Karma: 6
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Senior Member |
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Ken,
Thanks for the laugh!
Now knock it off! ;-)
Regards,
Rob Mueller
Sydney, Australia
AUS '75 Avion-The Blue Streak TZE365V100428
USA '75 Avion-Double Trouble TZE365V100426
-----Original Message-----
From: gmclist-bounces@temp.gmcnet.org
[mailto:gmclist-bounces@temp.gmcnet.org] On Behalf Of Ken Henderson
Sent: Sunday, 7 February 2010 2:20 PM
To: gmclist@temp.gmcnet.org
Subject: Re: [GMCnet] Porkchop Klocking
C'mon, Bob, don't get him started again! We'll NEVER be able to convince
him that a coil spring will work upside down -- regardless of what he sees
"down under". :-)
Ken H.
On Sat, Feb 6, 2010 at 10:12 PM, Bob de Kruyff <NEXT2POOL@aol.com> wrote:
>
>
> ""WHEEEWW!!! Finally! Guess I really am more stubborn than you are
> hard-headed. Right or wrong, :-)""
>
> Don't forget that torsion bars and coils springs are more or less the same
> kind of spring when you figure out how they operate--the only difffernce
is
> packaging.
>
> --
> Bob de Kruyff
> 78 Eleganza
> Chandler, AZ
>
>
_______________________________________________
GMCnet mailing list
List Information and Subscription Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
_______________________________________________
GMCnet mailing list
List Information and Subscription Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
Regards,
Rob M. (USAussie)
The Pedantic Mechanic
Sydney, Australia
'75 Avion - AUS - The Blue Streak TZE365V100428
'75 Avion - USA - Double Trouble TZE365V100426
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