GMCforum: GMCnet » [GMCnet] Blue/Gray Silicone CV Boots

Home » Public Forums » GMCnet » [GMCnet] Blue/Gray Silicone CV Boots

Show: Today's Messages :: Polls :: Message Navigator

[GMCnet] Blue/Gray Silicone CV Boots [message #336220]

Mon, 20 August 2018 21:09

Ken Henderson

Messages: 8726
Registered: March 2004
Location: Americus, GA

Karma: 9

Senior Member

I haven't done the detailed analysis yet, but this looks too good to ignore:

https://www.ebay.com/itm/Universal-High-Quality-Blue-Silicone-CV-Joint-Boot-Drive-Shaft-sk02a/322041037715?_trksid=p2485497.m4902.l9144

Ken H.
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org

Ken Henderson
Americus, GA
www.gmcwipersetc.com
Large Wiring Diagrams
76 X-Birchaven
76 X-Palm Beach

Report message to a moderator

Re: [GMCnet] Blue/Gray Silicone CV Boots [message #336232 is a reply to message #336220]

Tue, 21 August 2018 08:23

JohnL455

Messages: 4447
Registered: October 2006
Location: Woodstock, IL

Karma: 12

Senior Member

You will have to test as silicone tears very easily and the tear propagates very quickly. Looks like something for the tuner kids.

John Lebetski
Woodstock, IL
77 Eleganza II

Report message to a moderator

Re: [GMCnet] Blue/Gray Silicone CV Boots [message #336243 is a reply to message #336232]

Tue, 21 August 2018 13:11

Ken Henderson

Messages: 8726
Registered: March 2004
Location: Americus, GA

Karma: 9

Senior Member

I never used the old "famous" blue silicone boots that were so popular with
GMCers before they became unavailable. Were they also easily torn with
fast propagation? If so, why were they so popular?

Ken "Merely Curious" H.

On Tue, Aug 21, 2018 at 9:54 AM John R. Lebetski
wrote:

> You will have to test as silicone tears very easily and the tear
> propagates very quickly. Looks like something for the tuner kids.
> --
> John Lebetski
> Woodstock, IL
> 77 Eleganza II
>
>
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org

Ken Henderson
Americus, GA
www.gmcwipersetc.com
Large Wiring Diagrams
76 X-Birchaven
76 X-Palm Beach

Report message to a moderator

Re: [GMCnet] Blue/Gray Silicone CV Boots [message #336245 is a reply to message #336220]

Tue, 21 August 2018 14:02

JohnL455

Messages: 4447
Registered: October 2006
Location: Woodstock, IL

Karma: 12

Senior Member

Ken I don't know about the old ones but they were probably a blended material. Some EPDM percentage. I learned a little about it when we had custom plug wire boots made.

John Lebetski
Woodstock, IL
77 Eleganza II

Report message to a moderator

Re: [GMCnet] Blue/Gray Silicone CV Boots [message #336246 is a reply to message #336220]

Tue, 21 August 2018 14:15

Tom Newell

Messages: 25
Registered: August 2017
Location: Los Angeles, California

Karma: 0

Junior Member

Curiosity got the best of me, so off to Wikipedia.

First, and embarrassingly for me, silicone, the rubber, is not the same word as silicon, the second most abundant element in the earth's crust. Over 55 years to notice that... Silicone does contain silicon (SI), for what that is worth...

So, from Wikipedia for silicone rubber:

"Silicone rubber offers good resistance to extreme temperatures, being able to operate normally from −100 to 300 °C (−148 to 572 °F). Some properties such as elongation, creep, cyclic flexing, tear strength, compression set, dielectric strength (at high voltage), thermal conductivity, fire resistance and in some cases tensile strength can be--at extreme temperatures--far superior to organic rubbers in general, although a few of these properties are still lower than for some specialty materials. Silicone rubber is a material of choice in industry when retention of initial shape and mechanical strength are desired under heavy thermal stress or sub-zero temperatures..."

Further from Wikipedia:

"There are many special grades and forms of silicone rubber, including: steam resistant, metal detectable, high tear strength, extreme high temperature, extreme low temperature, electrically conductive, chemical/oil/acid/gas resistant, low smoke emitting, and flame-retardant. A variety of fillers can be used in silicone rubber, although most are non-reinforcing and lower the tensile strength...."

So, in a nutshell, they can make what is known generically as "silicone" with a wide variety of desired properties. Maybe even a "boot" variety. Science is fun...

Tom Newell
San Pedro, California

Proud Citizen of
Los Angeles, California
Founded 1781 as
El Pueblo de la Reyna de los Angeles,
Alta California

Report message to a moderator

Re: [GMCnet] Blue/Gray Silicone CV Boots [message #336266 is a reply to message #336243]

Tue, 21 August 2018 22:26

USAussie

Messages: 15912
Registered: July 2007
Location: Sydney, Australia

Karma: 6

Senior Member

Ken,

Back in 2008 when I was working on Double Trouble at the COOP I was rummaging around JimB's used CV joint spares when I happened on two used blue boots. I asked Jim if he would sell them to me and he said "just take them." The have been installed on for 10 years now and they're just fine. I reckon I've put around 60,000 miles on the but have no idea how many miles were on them when Jim gave them to me..

Emery sold me a new one and I came up with another new one from somebody and they're on The Blue Streak in Sydney. Then I got REALLY lucky and Mike Beaton sold me a pair that he didn't need as the ones he had on his GMC were fine. They are in Australia.

Last year I got a pair of grey silicone boots from Jeff Sirum and put them on the Kingsley, they were a bit finicky to install but I'd say they'll be OK. They are not as thick as the blue boots.

Regards, Rob M. (USAussie) The Pedantic Mechanic Sydney, Australia '75 Avion - AUS - The Blue Streak TZE365V100428 '75 Avion - USA - Double Trouble TZE365V100426

Report message to a moderator

Re: [GMCnet] Blue/Gray Silicone CV Boots [message #336267 is a reply to message #336266]

Tue, 21 August 2018 23:13

Cesar Carrasco

Messages: 30
Registered: September 2017
Location: Riverside, California

Karma: 0

Member

Are the blue boots the two piece?

On Tue, Aug 21, 2018 at 8:27 PM Robert Mueller
wrote:

> Ken,
>
> Back in 2008 when I was working on Double Trouble at the COOP I was
> rummaging around JimB's used CV joint spares when I happened on two used
> blue
> boots. I asked Jim if he would sell them to me and he said "just take
> them." The have been installed on for 10 years now and they're just fine. I
> reckon I've put around 60,000 miles on the but have no idea how many miles
> were on them when Jim gave them to me..
>
> Emery sold me a new one and I came up with another new one from somebody
> and they're on The Blue Streak in Sydney. Then I got REALLY lucky and Mike
> Beaton sold me a pair that he didn't need as the ones he had on his GMC
> were fine. They are in Australia.
>
> Last year I got a pair of grey silicone boots from Jeff Sirum and put them
> on the Kingsley, they were a bit finicky to install but I'd say they'll be
> OK. They are not as thick as the blue boots.
> --
> Regards,
> Rob M. (USAussie)
> The Pedantic Mechanic
> Sydney, Australia
> '75 Avion - AUS - The Blue Streak TZE365V100428
> '75 Avion - USA - Double Trouble TZE365V100426
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org

Report message to a moderator

Re: [GMCnet] Blue/Gray Silicone CV Boots [message #336270 is a reply to message #336267]

Wed, 22 August 2018 01:37

midlf

Messages: 2212
Registered: July 2007
Location: SE Wisc. (Palmyra)

Karma: 1

Senior Member

Cesar Carrasco wrote on Tue, 21 August 2018 23:13

Are the blue boots the two piece?

No. Blue boots are one piece.

Steve Southworth
1974 Glacier TZE064V100150 (for workin on)
1975 Transmode TZE365V100394 (parts & spares)
Palmyra WI

Report message to a moderator

Re: [GMCnet] Blue/Gray Silicone CV Boots [message #336335 is a reply to message #336220]

Thu, 23 August 2018 21:02

Rick Staples

Messages: 126
Registered: May 2014
Location: Johnstown, Colorado, USA

Karma: -1

Senior Member

FWIW,
I don't usually post my bargain finds here, not wanting to undercut our GMC suppliers who need to make a living so they can keep our coaches living. However.... Before you go buying a Universal Fitzall CV boot, go to Rock Auto, and do a search by part number for Moog 2456 CV boot kit. This is an exact replacement for our Toronado/GMC outer CV boots. Just like original, and easier to install than the universal type, they include grease and new circlip, all for about $12 plus shipping.
JWID
Rick Staples

Rick Staples, '75 Eleganza, Johnstown, CO "Advice is a dangerous gift, even from the Wise to the Wise, and all paths may run ill." -Tolkien

Report message to a moderator

Re: [GMCnet] Blue/Gray Silicone CV Boots [message #336350 is a reply to message #336335]

Fri, 24 August 2018 12:36

Anonymous

HOWEVER — THIS IS NOT A SILICONE BOOT. The site says this is a neoprene rubber boot.

The blue ones that Rob Mueller mentions are silicone.

Emery Stora
77 Kingsley
Frederick, CO

> On Aug 23, 2018, at 8:02 PM, Richard H Staples wrote:
>
> FWIW,
> I don't usually post my bargain finds here, not wanting to undercut our GMC suppliers who need to make a living so they can keep our coaches living.
> However.... Before you go buying a Universal Fitzall CV boot, go to Rock Auto, and do a search by part number for Moog 2456 CV boot kit. This is an
> exact replacement for our Toronado/GMC outer CV boots. Just like original, and easier to install than the universal type, they include grease and new
> circlip, all for about $12 plus shipping.
> JWID
> Rick Staples
> --
> Rick Staples, '75 Eleganza, Johnstown, CO
>
> "Advice is a dangerous gift, even from the Wise to the Wise, and all paths may run ill." -Tolkien
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org

_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org

Report message to a moderator

Re: [GMCnet] Blue/Gray Silicone CV Boots [message #336351 is a reply to message #336246]

Fri, 24 August 2018 13:34

Keith V

Messages: 2337
Registered: March 2008
Location: Mounds View,MN

Karma: 0

Senior Member

Tom Newel said
> First, and embarrassingly for me, silicone, the rubber, is not the same word as silicon, the second most abundant element in the earth's crust. Over
> 55 years to notice that... Silicone does contain silicon (SI), for what that is worth...

True that Silicone is not the same as Silicon, false that silicone does not contain Silicon.

Silicone is the 'organic' form of silicon. [R2SiO]n, where R is an organic group...
Silicon is a metal ( well sort of ), SiO2 is silicon dioxide AKA Quartz, quarts is the major component of glass.

Silicone is to silicon as Latex is to carbon

________________________________
From: Gmclist on behalf of Tom Newell via Gmclist
Sent: Tuesday, August 21, 2018 2:15 PM
To: gmclist@list.gmcnet.org
Cc: Tom Newell
Subject: Re: [GMCnet] Blue/Gray Silicone CV Boots

Curiosity got the best of me, so off to Wikipedia.

First, and embarrassingly for me, silicone, the rubber, is not the same word as silicon, the second most abundant element in the earth's crust. Over
55 years to notice that... Silicone does contain silicon (SI), for what that is worth...

So, from Wikipedia for silicone rubber:

"Silicone rubber offers good resistance to extreme temperatures, being able to operate normally from −100 to 300 °C (−148 to 572 °F). Some
properties such as elongation, creep, cyclic flexing, tear strength, compression set, dielectric strength (at high voltage), thermal conductivity,
fire resistance and in some cases tensile strength can be--at extreme temperatures--far superior to organic rubbers in general, although a few of
these properties are still lower than for some specialty materials. Silicone rubber is a material of choice in industry when retention of initial
shape and mechanical strength are desired under heavy thermal stress or sub-zero temperatures..."

Further from Wikipedia:

"There are many special grades and forms of silicone rubber, including: steam resistant, metal detectable, high tear strength, extreme high
temperature, extreme low temperature, electrically conductive, chemical/oil/acid/gas resistant, low smoke emitting, and flame-retardant. A variety of
fillers can be used in silicone rubber, although most are non-reinforcing and lower the tensile strength...."

So, in a nutshell, they can make what is known generically as "silicone" with a wide variety of desired properties. Maybe even a "boot" variety.
Science is fun...

Tom Newell
San Pedro, California

_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org

Keith Vasilakes
Mounds View. MN
75 ex Royale GMC
ask me about MicroLevel
Cell, 763-732-3419
My427v8@hotmail.com

Report message to a moderator

Re: [GMCnet] Blue/Gray Silicone CV Boots [message #336352 is a reply to message #336351]

Fri, 24 August 2018 13:50

Tom Newell

Messages: 25
Registered: August 2017
Location: Los Angeles, California

Karma: 0

Junior Member

Agreed. What I attempted to convey; poorly it seems.

On the subject, here is a really interesting, recent article on high purity silicon in North Carolina, the changing value of commodities, the rise of automation, and the market for sand. And it has pictures of pure silicon.

https://www.wired.com/story/book-excerpt-science-of-ultra-pure-silicon/

Tom Newell
San Pedro, California

Proud Citizen of
Los Angeles, California
Founded 1781 as
El Pueblo de la Reyna de los Angeles,
Alta California

Report message to a moderator

Previous Topic:	[GMCnet] Coach Spotted on NY State Thruway
Next Topic:	[GMCnet] testing

Goto Forum:

-=] Back to Top [=-

Current Time: Tue Oct 01 02:18:48 CDT 2024

Total time taken to generate the page: 0.00962 seconds