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EM Control arm bushings - NOS/NORS ?
Posted by: bbakerga ()
Date: May 08, 2018 01:00PM

1.) I *THINK* I would like to use NOS (GM) or NORS (TRW, MOOG, etc.) for the control arm bushings when I rebuild my front suspension, instead of the new, reproduced (Chinese?) bushings. Is this a good idea?, or does the rubber degrade sitting on the shelf for ~50 years?

2.) I've found NORS (TRW) upper/rear bushings, and NOS(GM) upper/front bushings. Would it be a bad idea to mix these? Would the durometer be different and cause problems?

Thoughts & input, please...

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Re: EM Control arm bushings - NOS/NORS ?
Posted by: bbakerga ()
Date: May 08, 2018 02:14PM

Also:

3.) I noticed that several of the sets that come with all 6 bushings show the same bushings for both (front & rear) positions on the upper control arms. Are they interchangeable? Have they revised the bushing design so you can just use the same bushing on both ends?

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Re: EM Control arm bushings - NOS/NORS ?
Posted by: bbakerga ()
Date: May 12, 2018 10:11AM

Anyone with input or help? Anyone? Bueller?

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Re: EM Control arm bushings - NOS/NORS ?
Posted by: kmart356 ()
Date: May 12, 2018 10:30AM

Aerospace Engineers have a spec.

Ken
'62 Spyder Coupe
Florida

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Re: EM Control arm bushings - NOS/NORS ?
Posted by: 66vairman ()
Date: May 12, 2018 11:07AM

Ken - Thanks for the chart. Looks like urethane bushings that some like don't age well.

I've known for some time the old butyl windshield seal fails and makes the rust problem around the windshield worse. I always encourage folks to pull the glass when they paint a car and install a new butyl seal.

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Re: EM Control arm bushings - NOS/NORS ?
Posted by: bbakerga ()
Date: May 12, 2018 02:14PM

What material are the old control arm bushings are made from?

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Re: EM Control arm bushings - NOS/NORS ?
Posted by: Murphy ()
Date: May 13, 2018 02:12AM

The chart show exactly why NOS rubber parts aren't the best thing to use. 50 year old rubber belongs in the trash.

65 Monza Coupe
61 500 Coupe (under Construction) Getting REALclose.

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Re: EM Control arm bushings - NOS/NORS ?
Posted by: junkman ()
Date: May 13, 2018 07:44AM

Murphy Wrote:
-------------------------------------------------------
> The chart show exactly why NOS rubber parts aren't
> the best thing to use. 50 year old rubber belongs
> in the trash.


So the 1965 motor mount that I have is not good! I would bet that if I were to throw it into a dumpster, there would be a lot of dumpster divers headed in after it. Your statement is akin to the people that say the government should relegate all old cars to the junk yards. One sided and opinionated! I have used many 1960's era rubber parts in my cars, and if they fail in 8 or 10 years, I feel that I have gotten good use out of them. I am driving a car, not an aerospace engineered vehicle where a failure will mean falling out of the sky, with catastrophic results. If my engine mount fails, it fails slowly, and being conscious that any automobile requires regular maintenance checks and repairs, I will notice it long before it fails completely. Even then, the engine isn't going to fall on the ground.

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Re: EM Control arm bushings - NOS/NORS ?
Posted by: Murphy ()
Date: May 13, 2018 01:50PM

Yes Mr. Junk, there would be a lot of dumpster divers jumping in, after all they are Corvair owners.

No, my Vair wouldn't fall out of the sky because of rubber failure, but if I were to replace with 50 year old dried out rubber parts, I really don't want to replace them 2-3 times sooner than I have to.

FWIW, I don't care to hear about using dried out rubber parts.

I do understand your thinking Junk, If I had a bunch of leftover rubber junk to sell, I'd be upset at someone calling it what it is....Junk.

Regards,
Murphy

65 Monza Coupe
61 500 Coupe (under Construction) Getting REALclose.

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Re: EM Control arm bushings - NOS/NORS ?
Posted by: jjohnsonjo ()
Date: May 13, 2018 02:22PM

50 year old USA and Japanese GM or Honda spec't rubber is often better the brand new Chinese rubber. I have a 69 and 79 Honda. The rubber boots on the brake and speedo are still soft and pliable. My wife's four year old Chinese scooter has the these parts totally deteriorated, not to mention the tire valve stems. Ever wonder why the have a population problem.

J.O.

65 Corsa Turbo Vert
79 Honda XL 500S
69 Honda CL 160 D
2010 BMW F 650 GS
2003 Bounder 36D
2013 KIA Optima SX turbo-AKA ZIPPY (wife,s car)
69 Newport Holiday Sailboat
Baja 150 dune buggy cart
Coleman HS 500 UTV
2016 KIA Sorento SXL Turbo

Bethlehem,Pa

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Re: EM Control arm bushings - NOS/NORS ?
Posted by: Murphy ()
Date: May 13, 2018 04:24PM

jjohnsonjo, don't be such a cheapskate and buy your wife something American made, lay off the Chinese stuff.

I'll be back later, I have some 50 year old tires to put on my Vair.
It's OK to do, I read it on the internet.

Regards,
Murphy

65 Monza Coupe
61 500 Coupe (under Construction) Getting REALclose.

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Re: EM Control arm bushings - NOS/NORS ?
Posted by: Frank DuVal ()
Date: May 13, 2018 08:31PM

Really? Do you know of an American made scooter?

That's the problem with saying buy American for every product. There are lots that are not made here anymore, like the computer you are using to view this forum.

Frank DuVal

Fredericksburg, VA

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Re: EM Control arm bushings - NOS/NORS ?
Posted by: caroseiii ()
Date: May 13, 2018 08:40PM

Always and never are not useful in this context. The problem is that it is inconvenient to replace the bushings twice if an NOS bushings craps out. However, I have never had that happen. Its not a big deal to try them out. Usually the 60 year old ones on the cars are still good, i.e., only cracked. The ones that I find are really destroyed are the body mount cushions. Those have to be replaced. NOS ones that I have installed have worked fine though but those are hard to find in inventories. I use the NOS control arm bushings when I have them.

Crawford

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Re: EM Control arm bushings - NOS/NORS ?
Posted by: Murphy ()
Date: May 14, 2018 03:02AM

Frank,

I wasn't the one to start with the Chinese business. I did use my foreign made computer to watch people from Virginia driving in the snow on you tube.

Hilarious, you should check it out.

Regards,
Murphy

65 Monza Coupe
61 500 Coupe (under Construction) Getting REALclose.

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Re: EM Control arm bushings - NOS/NORS ?
Posted by: jjohnsonjo ()
Date: May 14, 2018 05:07AM

Not sure how this got to 50 year tires, I change out the expensive tires on my RV every 6 years. Three years ago while the engine was out I changed all three mounts. Two new repro trans mounts and one NOS rear mount. The repros from a major vendor looked cheesy compared to the NOS.

J.O.

65 Corsa Turbo Vert
79 Honda XL 500S
69 Honda CL 160 D
2010 BMW F 650 GS
2003 Bounder 36D
2013 KIA Optima SX turbo-AKA ZIPPY (wife,s car)
69 Newport Holiday Sailboat
Baja 150 dune buggy cart
Coleman HS 500 UTV
2016 KIA Sorento SXL Turbo

Bethlehem,Pa

Image and video hosting by TinyPic

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Re: EM Control arm bushings - NOS/NORS ?
Posted by: Murphy ()
Date: May 15, 2018 03:12PM

jjohnsonjo Wrote:
-------------------------------------------------------
> Not sure how this got to 50 year tires


See next post

65 Monza Coupe
61 500 Coupe (under Construction) Getting REALclose.

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Re: EM Control arm bushings - NOS/NORS ?
Posted by: Murphy ()
Date: May 15, 2018 03:13PM

jjohnsonjo Wrote:
-------------------------------------------------------
> 50 year old USA and Japanese GM or Honda spec't
> rubber is often better the brand new Chinese
> rubber.

HUH?

65 Monza Coupe
61 500 Coupe (under Construction) Getting REALclose.



Edited 1 time(s). Last edit at 05/15/2018 03:14PM by Murphy.

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Re: EM Control arm bushings - NOS/NORS ?
Posted by: jjohnsonjo ()
Date: May 15, 2018 03:54PM

[www.safetyresearch.net]


The topic was not about tires. It was about rubber parts. This is one example.

J.O.

65 Corsa Turbo Vert
79 Honda XL 500S
69 Honda CL 160 D
2010 BMW F 650 GS
2003 Bounder 36D
2013 KIA Optima SX turbo-AKA ZIPPY (wife,s car)
69 Newport Holiday Sailboat
Baja 150 dune buggy cart
Coleman HS 500 UTV
2016 KIA Sorento SXL Turbo

Bethlehem,Pa

Image and video hosting by TinyPic

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Re: EM Control arm bushings - NOS/NORS ?
Date: May 15, 2018 09:49PM

As for the urethane comment - (I don't know exactly what polyester and polyether urethane is) We have numerous customers who have installed our urethane suspension bushings on their cars going back to 2000 when we developed them and they have reported that they look and ride as good as the day they put them in.
And as for squeaking (a problem apparently found in some other urethane bushings) we haven't experienced that either.
Urethane is a very "dialable" material and our formula works very well whether the stock 75 durometer or the stiffer 90 durometer.

Lon Wall
www.corvairunderground.com

PS - I too have seen the Third world "neoprene" Corvair bushings and they are crap.
If you can find original USA made bushings they should last nearly as long as originals, but what are the odds of that?

Lon Wall

Fireman Oregon Coast Scenic Railroad #25 #2
OCSRR.com
Fireman Sumpter Valley Railroad #3 and #19
svry.com
www.pacificmodelloggerscongress.com



Edited 1 time(s). Last edit at 05/15/2018 09:50PM by corvairunderground.

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Re: EM Control arm bushings - NOS/NORS ?
Posted by: Murphy ()
Date: May 16, 2018 02:57AM

jjohnsonjo Wrote:
------------------------------------------------------
>
>
> The topic was not about tires. It was about rubber
> parts. This is one example.


Now I'm confused. I thought all this time my tires were rubber???

Regards,
Murphy

65 Monza Coupe
61 500 Coupe (under Construction) Getting REALclose.

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