Free Republic
Browse · Search
General/Chat
Topics · Post Article

Skip to comments.

My torque tube needs help. Why should I do it?

Posted on 08/25/2010 7:44:29 PM PDT by When do we get liberated?

I am ordering parts to repair the torque tube on my 1970 Opel GT. The question I have is, why is it there? What purpose does it serve? It would seem to me that a simple driveshaft would suffice, but no, I have a heavy (everything seems heavy in an 1800 pound car) piece that serves, as far as I can see, no purpose. I have read the Wikipedia definition of what it does, but this makes no sense to me. Can someone tell me in layman's terms why it is there?


TOPICS: Hobbies; Travel
KEYWORDS: automobiles; automotive; opel; opelgt
Navigation: use the links below to view more comments.
first 1-5051-94 next last

1 posted on 08/25/2010 7:44:30 PM PDT by When do we get liberated?
[ Post Reply | Private Reply | View Replies]

To: When do we get liberated?

I have no idea - but an Opel GT is a seriously COOL car!


2 posted on 08/25/2010 7:45:36 PM PDT by NotThere
[ Post Reply | Private Reply | To 1 | View Replies]

To: When do we get liberated?
Does your Opel GT have a dent in the rear of the boot? (trunk)

Yup, I think they build 'em with that darn dent....

3 posted on 08/25/2010 7:46:41 PM PDT by China Clipper (My favorite animals usually are found next to the rice on my plate.)
[ Post Reply | Private Reply | To 1 | View Replies]

To: Xenalyte; Lazamataz; Texan5; Slip18

(Robt pings xena because she likes heavy torque tubes....)

(WhyisaTexasgirlgettingtubedinTX?)


4 posted on 08/25/2010 7:47:09 PM PDT by Robert A. Cook, PE (I can only donate monthly, but socialists' ABBCNNBCBS continue to lie every day!)
[ Post Reply | Private Reply | To 1 | View Replies]

To: When do we get liberated?

It’s a Dunsel.

http://memory-alpha.org/wiki/Dunsel


5 posted on 08/25/2010 7:48:33 PM PDT by shibumi (Pablo is Miley- wily, clever and detractive as all get out!)
[ Post Reply | Private Reply | To 1 | View Replies]

To: China Clipper; NotHere

The “dent” was to make room for the top of the carb ... 145 mph in east TX in 1973 between Bastrop and Rockne. (Don’t tell my dad.)


6 posted on 08/25/2010 7:48:54 PM PDT by Robert A. Cook, PE (I can only donate monthly, but socialists' ABBCNNBCBS continue to lie every day!)
[ Post Reply | Private Reply | To 3 | View Replies]

To: When do we get liberated?

More mass implies more angular momentum. The mass might have been built into the shaft to allow the car to overcome deformations on the path without overloading the engine with shock loads.


7 posted on 08/25/2010 7:49:14 PM PDT by James C. Bennett
[ Post Reply | Private Reply | To 1 | View Replies]

To: When do we get liberated?

“My torque tube needs help. Why should I do it?”

Take a shower & call your Dr in the morning.


8 posted on 08/25/2010 7:49:52 PM PDT by nuconvert ( Khomeini promised change too // Hail, Chairman O)
[ Post Reply | Private Reply | To 1 | View Replies]

To: When do we get liberated?
It keeps this from happening

9 posted on 08/25/2010 7:50:33 PM PDT by mnehring
[ Post Reply | Private Reply | To 1 | View Replies]

To: patton

(Patton remains confused. Gets knew tread for Opel.)


10 posted on 08/25/2010 7:51:04 PM PDT by Robert A. Cook, PE (I can only donate monthly, but socialists' ABBCNNBCBS continue to lie every day!)
[ Post Reply | Private Reply | To 4 | View Replies]

To: When do we get liberated?

This thread could go downhill quickly...


11 posted on 08/25/2010 7:53:56 PM PDT by gov_bean_ counter (Sarah Palin - For such a time as this...)
[ Post Reply | Private Reply | To 1 | View Replies]

To: When do we get liberated?
Wikipedia--

A torque tube system is an automobile driveshaft technology, used in cars with a front engine and rear drive. It is not as widespread as the Hotchkiss drive, but is still occasionally used to this day.

The "torque" that is referred to in the name is not that of the driveshaft, along the axis of the car, but that applied by the wheels. The design problem that the torque tube solves is how to get the traction forces generated by the wheels to the car frame. The "torque tube" transmits this force by directly coupling the axle differential to the transmission and therefore propels the car forward by pushing on the engine/transmission and then through the engine mounts to the car frame.

12 posted on 08/25/2010 7:55:03 PM PDT by freebilly (No wonder the left has a boner for Obama. There's CIALIS in soCIALISt....)
[ Post Reply | Private Reply | To 1 | View Replies]

To: gov_bean_ counter

Does Viagra work for a “torque tube”?


13 posted on 08/25/2010 7:55:20 PM PDT by hal ogen (1st amendment or reeducation camp?)
[ Post Reply | Private Reply | To 11 | View Replies]

To: When do we get liberated?

A friend of mine had one of those in HS.
It was yellow.
He had Earl Schieb paind it green, the left the headlight cowlings yellow.
The car was ever after known as “Froggie”


14 posted on 08/25/2010 7:56:01 PM PDT by mylife (Opinions $1 Halfbaked 50c)
[ Post Reply | Private Reply | To 1 | View Replies]

To: When do we get liberated?

I would start talking with these guys:

http://www.opelclub.com/index.html

They look like they know what they are doin ...


15 posted on 08/25/2010 7:56:19 PM PDT by jessduntno (The Grand Old Potty needs to be flushed ... vote for Conservatives in November.)
[ Post Reply | Private Reply | To 1 | View Replies]

To: When do we get liberated?; Salamander; Markos33; JoeProBono; Slings and Arrows; Allegra; ...

Seriously.

It’s there to keep the flayrods from going out of skew on the treadle.


16 posted on 08/25/2010 7:56:19 PM PDT by shibumi (Pablo is Miley- wily, clever and detractive as all get out!)
[ Post Reply | Private Reply | To 1 | View Replies]

To: When do we get liberated?

your what? needs what? geez, i’ve heard a lot of names for it but that sure takes the taco. sounds like a personal problem ya got there.


17 posted on 08/25/2010 7:56:42 PM PDT by madamemayhem (defeat is not getting knocked down, it is not getting back up.)
[ Post Reply | Private Reply | To 1 | View Replies]

To: China Clipper

No dents, no rust, painted Carracas Red with black interior. Lenk Racing lowered suspension, 1 inch sway bar front 3/4 inch rear, BBS wheels, front brakes modified from a “75 station wagon, new interior, Weber 36/32 carb, header (still feels weird not having an S on the end of header), polyurethane bushings all around, 50 series BF Goodrich z rated tires. Koni gas adjust shocks on the way tommorow or Friday. Built it frame up, it is a monocoque car, so that means engine and spring cradles removed. Replaced every part with new. Every bolt, clamp, bushing and washer. Rewired the car front to back (That was wicked pissah fun)She bad.


18 posted on 08/25/2010 7:57:49 PM PDT by When do we get liberated? (A socialist is a communist who realizes he must suck at the tit of Capitalism-Steve Hamel.)
[ Post Reply | Private Reply | To 3 | View Replies]

To: When do we get liberated?
Got nuttin' to do with engine torque (directly). It's that design's way of transferring the tires' traction forces to the frame. Essentially it transfers the push to the engine through the tranny, and to the car through the engine mounts.

Without it, those forces would very likely form a singularity that would devour the entire earth. Well, some of it, anyway. We'd lose Toledo, for sure.

19 posted on 08/25/2010 7:58:50 PM PDT by Billthedrill
[ Post Reply | Private Reply | To 1 | View Replies]

To: Robert A. Cook, PE

(Patton remains confused. Gets knew tread for Opel.)”

Oh no. The last tread we had was Mr. Piper’s Opus.


20 posted on 08/25/2010 7:58:50 PM PDT by jessduntno (The Grand Old Potty needs to be flushed ... vote for Conservatives in November.)
[ Post Reply | Private Reply | To 10 | View Replies]

To: When do we get liberated?

If I had a dollar for every time I needed help with my torque tube......


21 posted on 08/25/2010 7:59:34 PM PDT by cripplecreek (Remember the River Raisin! (look it up))
[ Post Reply | Private Reply | To 1 | View Replies]

To: shibumi

Is there trouble at the mill?!!!


22 posted on 08/25/2010 7:59:50 PM PDT by mylife (Opinions $1 Halfbaked 50c)
[ Post Reply | Private Reply | To 16 | View Replies]

To: When do we get liberated?

Have you adjusted the disgronificator?


23 posted on 08/25/2010 8:00:03 PM PDT by TonyInOhio ( Live free or die: Death is not the worst of evils.)
[ Post Reply | Private Reply | To 1 | View Replies]

To: When do we get liberated?

“The torque tube extends from the transmission to the axle and encases the driveshaft. The axles and gearbox are essentially connected and as a result, no trailing arms or multi link suspensions are necessary. This system allows for extreme axle articulation but prevents the axle from being contorted when it is at extreme compression or droop. It also prevents axle wind-up and axle hop, and encloses the driveshafts and protects them from obstacles and the elements. “


24 posted on 08/25/2010 8:00:13 PM PDT by Kirkwood (Zombie Hunter)
[ Post Reply | Private Reply | To 1 | View Replies]

To: When do we get liberated?

Any pics?


25 posted on 08/25/2010 8:00:42 PM PDT by sleddogs
[ Post Reply | Private Reply | To 18 | View Replies]

To: cripplecreek

“If I had a dollar for every time I needed help with my torque tube......”

You don’t keep it sheathed?


26 posted on 08/25/2010 8:00:42 PM PDT by jessduntno (The Grand Old Potty needs to be flushed ... vote for Conservatives in November.)
[ Post Reply | Private Reply | To 21 | View Replies]

To: shibumi
It’s there to keep the flayrods from going out of skew on the treadle.

That's only on pre-1970 Chevettes with the transmogrifier and deflatulent options.

27 posted on 08/25/2010 8:01:00 PM PDT by 50mm (McInsane - the torch bearer for liberal idiots and Mexicans.)
[ Post Reply | Private Reply | To 16 | View Replies]

To: When do we get liberated?
It's used to stune your flux capicitor's beeber.


Frowning takes 68 muscles.
Smiling takes 6.
Pulling this trigger takes 2.
I'm lazy.

28 posted on 08/25/2010 8:01:58 PM PDT by The Comedian (Evil can only succeed if good men don't point at it and laugh.)
[ Post Reply | Private Reply | To 1 | View Replies]

To: shibumi

I thought it was for buffering the flux capacitor past 1.21 Gigawatts.


29 posted on 08/25/2010 8:03:21 PM PDT by Slings and Arrows (You can't have IngSoc without an Emmanuel Goldstein.)
[ Post Reply | Private Reply | To 16 | View Replies]

To: James C. Bennett

This is the lightest car outside of a Nash Metropolitan. The torque tube was used on Fords up until 1950’s and in Corvettes today, but in the Corvettes case it is because the engine is in the front and the trans is in the rear. The torque tube is needed to prevent any vibration in the input shaft. a micrometer at the motor is a millimeter 8 feet later. In the Opel’s case I have a 1 foot driveshaft (cue 1 foot driveshaft jokes)2 U joints AND a torque tube.


30 posted on 08/25/2010 8:03:35 PM PDT by When do we get liberated? (A socialist is a communist who realizes he must suck at the tit of Capitalism-Steve Hamel.)
[ Post Reply | Private Reply | To 7 | View Replies]

To: mnehring

Is that Algore telling his son to slow down?


31 posted on 08/25/2010 8:04:16 PM PDT by Old Flat Toad (Pima County, home of the single vehicle accident with 40 victims.)
[ Post Reply | Private Reply | To 9 | View Replies]

To: mylife
There's just trouble at the mill - that's all.

I didn't expect a sort of Spanish Inquisition...


32 posted on 08/25/2010 8:04:48 PM PDT by shibumi (Pablo is Miley- wily, clever and detractive as all get out!)
[ Post Reply | Private Reply | To 22 | View Replies]

To: shibumi
NOBODY expects the...

...I'll come in again...

33 posted on 08/25/2010 8:05:46 PM PDT by Billthedrill
[ Post Reply | Private Reply | To 32 | View Replies]

To: shibumi

Oh!


34 posted on 08/25/2010 8:05:53 PM PDT by mylife (Opinions $1 Halfbaked 50c)
[ Post Reply | Private Reply | To 32 | View Replies]

To: When do we get liberated?
I have a 1 foot driveshaft

And you're complaining? LOL

35 posted on 08/25/2010 8:06:16 PM PDT by 50mm (McInsane - the torch bearer for liberal idiots and Mexicans.)
[ Post Reply | Private Reply | To 30 | View Replies]

To: When do we get liberated?

It directs force from the rear wheels back through the drive train to push the car forward rather than through the rear suspension to the frame.


36 posted on 08/25/2010 8:06:21 PM PDT by Kirkwood (Zombie Hunter)
[ Post Reply | Private Reply | To 1 | View Replies]

To: Kirkwood

“It directs force from the rear wheels back through the drive train to push the car forward rather than through the rear suspension to the frame.”

Is that from the Carma Sutra?


37 posted on 08/25/2010 8:08:19 PM PDT by jessduntno (The Grand Old Potty needs to be flushed ... vote for Conservatives in November.)
[ Post Reply | Private Reply | To 36 | View Replies]

To: jessduntno
You don’t keep it sheathed?

I used to but the U-joint needed grease so often that I had the sheath removed so I could keep things limber.
38 posted on 08/25/2010 8:08:50 PM PDT by cripplecreek (Remember the River Raisin! (look it up))
[ Post Reply | Private Reply | To 26 | View Replies]

To: jessduntno

I dont know about Opels, but there is a lot of info on Tata’s in the Kama Sutra.


39 posted on 08/25/2010 8:10:04 PM PDT by mylife (Opinions $1 Halfbaked 50c)
[ Post Reply | Private Reply | To 37 | View Replies]

To: When do we get liberated?
Bought a 1970 Opel GT third hand in 1982, what a great little car (Poor Man's Corvette). Regret selling it in 1989 to this day. Got twice what I paid for it from a collector (This was his third).
That little four cylinder Adams Opel engine would run like a spotted a$$ ape! Got it up to 125 MPH with some left to go.
40 posted on 08/25/2010 8:10:30 PM PDT by The Cajun (Mind numbed robot , ditto-head, Hannitized, Levinite)
[ Post Reply | Private Reply | To 1 | View Replies]

To: shibumi

Want to hear a good Dunsel story? Try my carb linkage. I poop you not;
1. You push the gas pedal
2. A rod pushes forward. There is a junction point.
3. This causes the next rod to move up There is a junction point
4.That rod moving up comes to a junction point.
5. That causes the next rod to rotate, where it meets a junction point.
6. The next junction point rotates a rod that goes behind the motor and comes to a junction point.
7. When that junction point is turned it turns a rod that has a junction point.
8. Your carb blades open up.

Maybe it isnt a dunsel though. at 40 years old it works perfectly, never stretches, never changes...


41 posted on 08/25/2010 8:11:39 PM PDT by When do we get liberated? (A socialist is a communist who realizes he must suck at the tit of Capitalism-Steve Hamel.)
[ Post Reply | Private Reply | To 5 | View Replies]

To: cripplecreek
I used to but the U-joint needed grease so often that I had the sheath removed so I could keep things limber.

Sort of an automotive bris, if you will.

42 posted on 08/25/2010 8:11:45 PM PDT by 50mm (McInsane - the torch bearer for liberal idiots and Mexicans.)
[ Post Reply | Private Reply | To 38 | View Replies]

To: mylife

I dont know about Opels, but there is a lot of info on Tata’s in the Kama Sutra.”

That’s when the Car-ma Sutra comes .. in .. handy.


43 posted on 08/25/2010 8:11:45 PM PDT by jessduntno (The Grand Old Potty needs to be flushed ... vote for Conservatives in November.)
[ Post Reply | Private Reply | To 39 | View Replies]

To: jessduntno

I see.


44 posted on 08/25/2010 8:13:42 PM PDT by mylife (Opinions $1 Halfbaked 50c)
[ Post Reply | Private Reply | To 43 | View Replies]

To: Billthedrill
Without it, those forces would very likely form a singularity that would devour the entire earth. Well, some of it, anyway. We'd lose Toledo, for sure.

Divide by Zero Pictures, Images and Photos

45 posted on 08/25/2010 8:13:58 PM PDT by null and void (We are now in day 578 of our national holiday from reality. - 0bama really isn't one of US.)
[ Post Reply | Private Reply | To 19 | View Replies]

To: nuconvert

I expected that lol


46 posted on 08/25/2010 8:14:18 PM PDT by When do we get liberated? (A socialist is a communist who realizes he must suck at the tit of Capitalism-Steve Hamel.)
[ Post Reply | Private Reply | To 8 | View Replies]

To: jessduntno; Robert A. Cook, PE

Oh, no. My muffler thrush bearing just gave out.


47 posted on 08/25/2010 8:15:05 PM PDT by patton (Obama has replaced "Res Publica" with "Quod licet Jovi non licet bovi.")
[ Post Reply | Private Reply | To 20 | View Replies]

To: TonyInOhio; When do we get liberated?
Have you adjusted the disgronificator?

Do NOT mess with the disgronificator! If you try to adjust the disgronificator you'll just cause yourself all kinds of extra work!

You need to go to your local Napa Auto parts. Ask for a Johnsons 3785 specific gravity wrench. Make sure you get a 3785. They might tell you a 3795 will do, but if it isn't a 3785 you'll be in a world of hurt.

Also, pick up a 12 pack of WD40. You won't need it for this job, but the 12 pack is a great deal and the stuff is almost as useful as duct tape.

Freep mail me once you have the Johnsons 3785 specific gravity wrench and I'll talk you through the rest.

48 posted on 08/25/2010 8:16:06 PM PDT by Grizzled Bear (Does not play well with others)
[ Post Reply | Private Reply | To 23 | View Replies]

To: When do we get liberated?

The torque tube is the tube in which the drive shaft runs to the rear differential. In most vehicles, like a hotchkiss drive, the engine twists against the frame or body to spin the drive shaft. The drive shaft then attempts to turn the differential. This means that engine torque tends to lift the right tire and push down on the left tire. It is why a car with an open differential always spins the right (passenger side) tire on takeoff, since engine torque is twisting the whole axle assembly.

The torque tube instead, mounts directly to the differential and to the transmission, so that no twiting force is applied to the axle or the frame by the engine. Instead, the engine twists the shaft inside the torque tube, which then transfers the torque right back to the transmission case. The rear axle, then, does not attempt to twist against the body under power.

You could change your car over to a Hotchkiss drive, where the engine torque is transferred to the body, and the rear axle reacts to engine torque by attempting to turn, causing weight distribution change side to side. But you’ll need different engine mounting, different springing, change to a 4 link style suspension in the back, and other changes, as well. I would NOT suggest doing that. Instead, if all else fails, a very good machine shop should be able to repair or fabricate a new torque tube. Likely yours is damaged by hitting something, or a failed drive shaft or joints hitting it.

It is complex, heavy, and expensive, but it was done to spare your car from twisting the frame or body from engine torque, and to improve cornering characteristics and prevent “under power” handling changes.


49 posted on 08/25/2010 8:16:52 PM PDT by The Watcher
[ Post Reply | Private Reply | To 1 | View Replies]

To: Billthedrill
We'd lose Toledo, for sure.

Ohio has been trying to give Toledo back to Michigan for years, so at least Ohioans wouldn't mind.

50 posted on 08/25/2010 8:17:33 PM PDT by 50mm (McInsane - the torch bearer for liberal idiots and Mexicans.)
[ Post Reply | Private Reply | To 19 | View Replies]


Navigation: use the links below to view more comments.
first 1-5051-94 next last

Disclaimer: Opinions posted on Free Republic are those of the individual posters and do not necessarily represent the opinion of Free Republic or its management. All materials posted herein are protected by copyright law and the exemption for fair use of copyrighted works.

Free Republic
Browse · Search
General/Chat
Topics · Post Article

FreeRepublic, LLC, PO BOX 9771, FRESNO, CA 93794
FreeRepublic.com is powered by software copyright 2000-2008 John Robinson