GMCforum
For enthusiast of the Classic GMC Motorhome built from 1973 to 1978. A web-based mirror of the GMCnet mailing list.

Home » Public Forums » GMCnet » Cv boot bansd double wrap
Cv boot bansd double wrap [message #147949] Thu, 27 October 2011 13:27 Go to next message
skip2 is currently offline  skip2   United States
Messages: 544
Registered: September 2011
Location: Winter Haven,FL (center o...
Karma: 3
Senior Member
Does the term I keep hearing "double wrap" mean what it sounds like that you run the band around the boot twice before using the tool to tighten. Thanks

74 Canyon Lands, FiTech, 3.7 FD LSD, Manny Tranny, Springfield Distributor, 2001 Chevy Tracker Ragtop Towd
Re: [GMCnet] Cv boot bansd double wrap [message #147952 is a reply to message #147949] Thu, 27 October 2011 14:11 Go to previous messageGo to next message
James Hupy is currently offline  James Hupy   United States
Messages: 6806
Registered: May 2010
Karma: -62
Senior Member
Yes, when using the 1/4 " wide "Band It" clamps on the axle itself. Not the
large end of the outboard CV.
Jim Hupy
Salem, OR
78 GMC Royale 403

On Thu, Oct 27, 2011 at 11:27 AM, Skip Hartline <skiphartline@aol.com>wrote:

>
>
> Does the term I keep hearing "double wrap" mean what it sounds like that
> you run the band around the boot twice before using the tool to tighten.
> Thanks
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist

Re: [GMCnet] Cv boot bansd double wrap [message #147955 is a reply to message #147949] Thu, 27 October 2011 14:33 Go to previous messageGo to next message
Mr ERFisher is currently offline  Mr ERFisher   United States
Messages: 7117
Registered: August 2005
Karma: 2
Senior Member
here goes
http://gmcmotorhome.info/front.html#clamps

see if that helps
gene


On Thu, Oct 27, 2011 at 11:27 AM, Skip Hartline <skiphartline@aol.com>wrote:

>
>
> Does the term I keep hearing "double wrap" mean what it sounds like that
> you run the band around the boot twice before using the tool to tighten.
> Thanks
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>



--
Gene Fisher -- 74-23,77PB/ore/ca
“Give a man a fish; you have fed him for today --- give him a URL and
-------
http://gmcmotorhome.info/
Alternator Protection Cable
http://gmcmotorhome.info/APC.html
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist

Re: [GMCnet] Cv boot bansd double wrap [message #147956 is a reply to message #147952] Thu, 27 October 2011 14:40 Go to previous messageGo to next message
kelvin is currently offline  kelvin   United States
Messages: 608
Registered: February 2004
Location: Eugene, OR
Karma: 0
Senior Member
Maybe I'm misunderstanding your answer, Jim...

I've used double-wrap bands on the small AND the large end of the CV
boot. Did this a couple months ago.
No trouble getting both from NAPA.

Kelvin
'73 23' in Eugene, OR


On 10/27/2011 12:11 PM, James Hupy wrote:
> Yes, when using the 1/4 " wide "Band It" clamps on the axle itself. Not the
> large end of the outboard CV.
> Jim Hupy
> Salem, OR
> 78 GMC Royale 403
>
> On Thu, Oct 27, 2011 at 11:27 AM, Skip Hartline<skiphartline@aol.com>wrote:
>
>>
>> Does the term I keep hearing "double wrap" mean what it sounds like that
>> you run the band around the boot twice before using the tool to tighten.
>> Thanks
>> _______________________________________________
>> GMCnet mailing list
>> Unsubscribe or Change List Options:
>> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>

_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist

Re: [GMCnet] Cv boot bansd double wrap [message #147957 is a reply to message #147956] Thu, 27 October 2011 14:53 Go to previous messageGo to next message
skip2 is currently offline  skip2   United States
Messages: 544
Registered: September 2011
Location: Winter Haven,FL (center o...
Karma: 3
Senior Member
so is the answer yes on the small end and no on the large?

74 Canyon Lands, FiTech, 3.7 FD LSD, Manny Tranny, Springfield Distributor, 2001 Chevy Tracker Ragtop Towd
Re: [GMCnet] Cv boot bansd double wrap [message #147959 is a reply to message #147957] Thu, 27 October 2011 15:25 Go to previous messageGo to next message
kelvin is currently offline  kelvin   United States
Messages: 608
Registered: February 2004
Location: Eugene, OR
Karma: 0
Senior Member
My answer is Yes on both ends. But I'm a relative newby with only 9
years on GMCs. . :^)

From my experience I don't think the small end actually needs a double
wrap. Fact is, I'm running a quality zip-tie on there right now - just
to see what it does.

The big end definitely needs a double wrap. And you need a quality
tightening tool (NAPA again) and the info I found says torque them to 65
in/lbs.

I didn't have the good tool or the torque info the first time I did
this. Mine boots seeped grease and one finally popped off after 4
years. Always better the second time around...

Kelvin

>
> so is the answer yes on the small end and no on the large?
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>

_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist

Re: [GMCnet] Cv boot bansd double wrap [message #147960 is a reply to message #147956] Thu, 27 October 2011 15:26 Go to previous messageGo to next message
James Hupy is currently offline  James Hupy   United States
Messages: 6806
Registered: May 2010
Karma: -62
Senior Member
Kelvin, from what I understood from the instructions that I have with my
NAPA Band IT tool, It recommended that the smaller surfaces like the axle
itself be double wrapped for best results. I don't think that they
prohibited double wrapping the large ends, perhaps the amount of material
required for the large ones enters into it. The short ones have to be quite
long to wrap the axle and then thread through the tool so that they can be
properly tensioned and crimped, and maybe they can eliminate some lengths by
not having short ones. I do know that some people here on the Forum have
left their small ends totally unbanded. I personally do not think that is a
good idea, particularly in Oregon. Reason being that road grit, mixed with
water spray from the tires isn't too much different than valve lapping
compound, and if a wet slurry can find it's way into the boot, it will make
short work of the CV joint.
Jim Hupy
Salem, OR
78 GMC Royale 403

On Thu, Oct 27, 2011 at 12:40 PM, Kelvin Dietz <kelvin@datsuns.com> wrote:

> Maybe I'm misunderstanding your answer, Jim...
>
> I've used double-wrap bands on the small AND the large end of the CV
> boot. Did this a couple months ago.
> No trouble getting both from NAPA.
>
> Kelvin
> '73 23' in Eugene, OR
>
>
> On 10/27/2011 12:11 PM, James Hupy wrote:
> > Yes, when using the 1/4 " wide "Band It" clamps on the axle itself. Not
> the
> > large end of the outboard CV.
> > Jim Hupy
> > Salem, OR
> > 78 GMC Royale 403
> >
> > On Thu, Oct 27, 2011 at 11:27 AM, Skip Hartline<skiphartline@aol.com
> >wrote:
> >
> >>
> >> Does the term I keep hearing "double wrap" mean what it sounds like that
> >> you run the band around the boot twice before using the tool to tighten.
> >> Thanks
> >> _______________________________________________
> >> GMCnet mailing list
> >> Unsubscribe or Change List Options:
> >> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
> >>
> > _______________________________________________
> > GMCnet mailing list
> > Unsubscribe or Change List Options:
> > http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
> >
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist

Re: [GMCnet] Cv boot bansd double wrap [message #147961 is a reply to message #147960] Thu, 27 October 2011 15:34 Go to previous messageGo to next message
skip2 is currently offline  skip2   United States
Messages: 544
Registered: September 2011
Location: Winter Haven,FL (center o...
Karma: 3
Senior Member
THANK YOU Gentlemen

74 Canyon Lands, FiTech, 3.7 FD LSD, Manny Tranny, Springfield Distributor, 2001 Chevy Tracker Ragtop Towd
Re: [GMCnet] Cv boot bansd double wrap [message #147963 is a reply to message #147961] Thu, 27 October 2011 16:09 Go to previous messageGo to next message
Richard Denney is currently offline  Richard Denney   United States
Messages: 920
Registered: April 2010
Karma: 9
Senior Member
On Thu, Oct 27, 2011 at 4:34 PM, Skip Hartline <skiphartline@aol.com> wrote:

> THANK YOU Gentlemen
>
> Skip, boot leaks are a perennial problem for GMCs. Double-wrap the bands
everywhere you put them. It prevents pinching the boot material,and provides
a more even distribution of clamping force.

There has been some discussion of not putting clamps at all on the SMALL
end. I put clamps on mine. You MUST put a clamp on the large end. That's not
what Jim meant--he was reading instructions saying that double-wrapping is
particularly useful for small diameters. But my recommendation is to
double-wrap everything.

Rick "seeing the potential for misunderstanding" Denney

--
'73 230 "Jaws"
Northern Virginia
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist

Re: [GMCnet] Cv boot bansd double wrap [message #147965 is a reply to message #147952] Thu, 27 October 2011 16:31 Go to previous messageGo to next message
Ken Henderson is currently offline  Ken Henderson   United States
Messages: 8726
Registered: March 2004
Location: Americus, GA
Karma: 9
Senior Member
YES the large outboard end! That's where it's really important. The double
wrap, with the SS on SS bearing surface, allows the circumferential stress
to be translated into radial force without bunching up the rubber. At the
axle (small end) a single wrap would certainly suffice -- as does no clamp
at all.

Ken H.
Americus, GA
'76 X-Birchaven w/Cad500/Howell EFI+ & EBL
www.gmcwipersetc.com



On Thu, Oct 27, 2011 at 3:11 PM, James Hupy <jamesh1296@gmail.com> wrote:

> Yes, when using the 1/4 " wide "Band It" clamps on the axle itself. Not the
> large end of the outboard CV.
>
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist



Ken Henderson
Americus, GA
www.gmcwipersetc.com
Large Wiring Diagrams
76 X-Birchaven
76 X-Palm Beach
Re: [GMCnet] Cv boot bansd double wrap [message #148124 is a reply to message #147957] Sat, 29 October 2011 08:57 Go to previous messageGo to next message
emerystora is currently offline  emerystora   United States
Messages: 4442
Registered: January 2004
Karma: 13
Senior Member

On Oct 27, 2011, at 1:53 PM, Skip Hartline wrote:

>
>
> so is the answer yes on the small end and no on the large?
> _______________________________________________

I don't think so. I have always use a double wrap on the large end.

Emery Stora
77 Kingsley
Santa Fe, NM


_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist

Re: [GMCnet] Cv boot bansd double wrap [message #148126 is a reply to message #148124] Sat, 29 October 2011 09:02 Go to previous message
Mr ERFisher is currently offline  Mr ERFisher   United States
Messages: 7117
Registered: August 2005
Karma: 2
Senior Member
The large ends are so hard to hold, some used to: clean the rim with
solvent, and dimple the lip with a center punch to help the boot hold.

the double wrap was a step forward

gene



> >
> >
> > so is the answer yes on the small end and no on the large?
> > _______________________________________________
>
> I don't think so. I have always use a double wrap on the large end.
>
> Emery Stora
> 77 Kingsley
> Santa Fe, NM
>
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>



--
Gene Fisher -- 74-23,77PB/ore/ca
“Give a man a fish; you have fed him for today --- give him a URL and
-------
http://gmcmotorhome.info/
Alternator Protection Cable
http://gmcmotorhome.info/APC.html
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist

Previous Topic: [GMCnet] OEM and other GMC abbr. &slang
Next Topic: [GMCnet] Flatlanders: Attention Ed & Larry Nelson
Goto Forum:
  


Current Time: Sun Nov 17 05:18:43 CST 2024

Total time taken to generate the page: 0.01488 seconds