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Outer CV boot leaking again! [message #83794] Sun, 09 May 2010 15:13 Go to next message
RF_Burns is currently offline  RF_Burns   Canada
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Registered: June 2008
Location: S. Ontario, Canada
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Senior Member
Just getting the Murray ready to head out on our first GMC rally next weekend and I notice I have a leaking CV boot on the driver's side. This is the same one Cinnibar replaced last year and has less than a 1,000 miles on it.

Any ideas why it went again so soon? I can't see where it rubs on anything. Actually I can't see a crack, the boot has collapsed in on a rib on both sides, maybe due to grease escaping and air can't get back in.


Bruce Hislop
ON Canada
77PB, 455 Dick P. rebuilt, DynamicEFI EBL EFI & ESC.
1 ton front end
http://www.gmcmhphotos.com/photos/showphoto.php?photo=29001
My Staff says I never listen to them, or something like that
Re: [GMCnet] Outer CV boot leaking again! [message #83799 is a reply to message #83794] Sun, 09 May 2010 15:44 Go to previous messageGo to next message
Mr ERFisher is currently offline  Mr ERFisher   United States
Messages: 7117
Registered: August 2005
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Senior Member
there is always this

http://gmcmotorhome.info/front.html#boot

and I know one GMCer who used "shoe goo" to patch one until he could it
replaced. It held for 3,000 miles and was ok when he took it off.

cleaned area well, used some fiberglass and the goo , and it held.

good luck

gene




On Sun, May 9, 2010 at 1:13 PM, Bruce Hislop <bruce@perthcomm.com> wrote:

>
>
> Just getting the Murray ready to head out on our first GMC rally next
> weekend and I notice I have a leaking CV boot on the driver's side. This is
> the same one Cinnibar replaced last year and has less than a 1,000 miles on
> it.
>
> Any ideas why it went again so soon? I can't see where it rubs on
> anything. Actually I can't see a crack, the boot has collapsed in on a rib
> on both sides, maybe due to grease escaping and air can't get back in.
>
> --
> Bruce Hislop,
> S. Ontario Canada
> 77PB, 455 Dick P. rebuilt, DynamicEFI EBL EFI and ESC.
> http://www.gmcmhphotos.com/photos/showphoto.php?photo=29001
> _______________________________________________
> GMCnet mailing list
> List Information and Subscription 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
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Re: Outer CV boot leaking again! [message #83836 is a reply to message #83794] Sun, 09 May 2010 20:50 Go to previous messageGo to next message
roy1 is currently offline  roy1   United States
Messages: 2126
Registered: July 2004
Location: Minden nevada
Karma: 6
Senior Member
If it is oozing out on the big end it could be they banded it with a grease film between the boot and the metal. If this is the case you will have to unband it and clean this area with lacquer thinner or something to get this area dry and re-band it otherwise it will always ooze grease in this area.
Roy


Roy Keen Minden,NV 76 X Glenbrook
Re: Outer CV boot leaking again! [message #83852 is a reply to message #83794] Sun, 09 May 2010 22:38 Go to previous messageGo to next message
Larry is currently offline  Larry   United States
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Registered: January 2004
Location: Menomonie, WI
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Are you sure that it is the boot that is leaking? I got fooled at least twice by grease that dropped off of the upper ball joint after I did a grease job. Appeared at first to be a leaky boot. When I wiped the grease off of the boot, there was no hole to be found under it. Drove it and still no appearance of a leak.

Larry Smile
78 Royale w/500 Caddy
Menomonie, WI.
Re: Outer CV boot leaking again! [message #83895 is a reply to message #83794] Mon, 10 May 2010 07:06 Go to previous messageGo to next message
RF_Burns is currently offline  RF_Burns   Canada
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Registered: June 2008
Location: S. Ontario, Canada
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Oh pretty sure its got a crack.
There is grease flailed against the top and bottom control arms and the underside of the fender liner. There is grease around one area of the boot where it has collapsed in and not the reast of the boot.

I still can't see where it could hit anything.



Bruce Hislop
ON Canada
77PB, 455 Dick P. rebuilt, DynamicEFI EBL EFI & ESC.
1 ton front end
http://www.gmcmhphotos.com/photos/showphoto.php?photo=29001
My Staff says I never listen to them, or something like that
Re: Outer CV boot leaking again! [message #83898 is a reply to message #83895] Mon, 10 May 2010 07:30 Go to previous messageGo to next message
C Boyd is currently offline  C Boyd   United States
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Registered: April 2006
Karma: 18
Senior Member
RF_Burns wrote on Mon, 10 May 2010 08:06

Oh pretty sure its got a crack.
There is grease flailed against the top and bottom control arms and the underside of the fender liner. There is grease around one area of the boot where it has collapsed in and not the reast of the boot.

I still can't see where it could hit anything.








Sir: I believe the most common cause of premature failure is the lower ball joint cotter key rubbing the boot. Most people I know do not replace the small inner band that clamps the boot to the axle. This gives the boot room to flex instead of collapsing. The grease will not leak out cause the grease is slung toward the outside.


C. Boyd
76 Crestmont
East Tennessee
Re: Outer CV boot leaking again! [message #83907 is a reply to message #83794] Mon, 10 May 2010 08:30 Go to previous messageGo to next message
RF_Burns is currently offline  RF_Burns   Canada
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Registered: June 2008
Location: S. Ontario, Canada
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I was just on the phone with Frank Borrmann. He can squeeze me in Wednesday morning.

Borrmann's Garage is the goto place in Southern Ontario for GMC repairs. He has a GMC and a FMC. He's not on the web so I'll give him a plug here.


Bruce Hislop
ON Canada
77PB, 455 Dick P. rebuilt, DynamicEFI EBL EFI & ESC.
1 ton front end
http://www.gmcmhphotos.com/photos/showphoto.php?photo=29001
My Staff says I never listen to them, or something like that
Re: [GMCnet] Outer CV boot leaking again! [message #83921 is a reply to message #83907] Mon, 10 May 2010 10:05 Go to previous messageGo to next message
USAussie is currently offline  USAussie   United States
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Registered: July 2007
Location: Sydney, Australia
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Senior Member
Bruce,

IIRC there's a bracket that holds the brake hose that can cause problems
too.

I'm in the process of updating the Local GMC Service Provider
Recommendations and note that Chuck Camroux recommended Frank's shop.

Please let us know how he does with your problem.

As it turns out he is on the web:

http://www.borrmannsgarage.aaro.ca/

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 Bruce Hislop
Sent: Monday, 10 May 2010 11:30 PM
To: gmclist@temp.gmcnet.org
Subject: Re: [GMCnet] Outer CV boot leaking again!

I was just on the phone with Frank Borrmann. He can squeeze me in Wednesday
morning.

Borrmann's Garage is the goto place in Southern Ontario for GMC repairs. He
has a GMC and a FMC. He's not on the web so I'll give him a plug here.

--
Bruce Hislop,
S. Ontario Canada
77PB, 455 Dick P. rebuilt, DynamicEFI EBL EFI and ESC.
http://www.gmcmhphotos.com/photos/showphoto.php?photo=29001
_______________________________________________
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_______________________________________________
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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
Re: Outer CV boot leaking again! [message #83958 is a reply to message #83794] Mon, 10 May 2010 16:36 Go to previous messageGo to next message
RF_Burns is currently offline  RF_Burns   Canada
Messages: 2277
Registered: June 2008
Location: S. Ontario, Canada
Karma: 3
Senior Member
Rob,
I noted that bracket and its got good clearance from the boot.

My steering box was replaced and rebuilt, I wonder if I have the tighter turning 4 turn box and it gets stretched on tight turns?

I see Frank is on the net now. I even google mapped his location and he's been photo'd too. You can see several GMC's in the background!


Bruce Hislop
ON Canada
77PB, 455 Dick P. rebuilt, DynamicEFI EBL EFI & ESC.
1 ton front end
http://www.gmcmhphotos.com/photos/showphoto.php?photo=29001
My Staff says I never listen to them, or something like that
Re: [GMCnet] Outer CV boot leaking again! [message #145453 is a reply to message #83794] Tue, 04 October 2011 02:34 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
>
> Any ideas why it went again so soon? I can't see where it rubs on
> anything. Actually I can't see a crack, the boot has collapsed in on a rib
> on both sides, maybe due to grease escaping and air can't get back in.
>
> there is always this

http://gmcmotorhome.info/front.html#boot

and I know one GMCer who used "shoe goo" to patch one until he could it
replaced. It held for 3,000 miles and was ok when he took it off.

cleaned area well, used some fiberglass and the goo , and it held.

good luck


--
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
_______________________________________________
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Unsubscribe or Change List Options:
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Re: [GMCnet] Outer CV boot leaking again! [message #145455 is a reply to message #145453] Tue, 04 October 2011 06:18 Go to previous messageGo to next message
John Sharpe is currently offline  John Sharpe   United States
Messages: 489
Registered: February 2006
Location: Texas
Karma: 1
Senior Member
Quote:

....Actually I can't see a crack, the boot has collapsed in on a rib on both sides,....


This collapsed rib seams to be a common problem. Many of us have just cut the small clamp off. This allows the boot to not twist, and keep the rib collapsed. There does not seem to be a problem of grease leaking from the axle end by leaving off the clamp. If you have a leak then that needs to be addressed. Mine was not leaking it just had collapsed ribs. Probably caught it soon enough to take corrective action.


John Sharpe
Humble,TX
'78 Eleganza TBI
'89 Spectrum 2000 MPI V-10
'40 Ford Panel Delivery TPI
johnasharpe@gmail.com
Re: Outer CV boot leaking again! [message #145661 is a reply to message #83794] Wed, 05 October 2011 21:53 Go to previous message
JohnL455 is currently offline  JohnL455   United States
Messages: 4447
Registered: October 2006
Location: Woodstock, IL
Karma: 12
Senior Member
I had Cinnabar do my boots and they turned brittle and hard and cracked into V shaped shards in about 5 years/3000 miles with indoor storage. They use the green Saganaw grease. I spoke to Wes about this and he in my opoinion played "dumb" to it and said that is the only recommended grease to use. IMHO there is some incompatiblity between that grease and the type of rubber boots they use as it a definite chemical reaction. I have the ones Jim K sells on there now by Dorman and we will see if they last longer. I think they will.

John Lebetski
Woodstock, IL
77 Eleganza II
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