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nose above grill cracking [message #148247]

Mon, 31 October 2011 00:31

RF_Burns

Messages: 2277
Registered: June 2008
Location: S. Ontario, Canada

Karma: 3

Senior Member

I have a crack in the point of the front cap that is slowly growing longer. I'm talking about between the 2 front access doors,right above the grill where the SCM comes to a point in the nose.

I suspect it is a stress point there. The crack was maybe 1/2" long when I got the coach in 2008, now its about 2" long.

Anything I can do to repair it, or stop it from getting worse?
thanks

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

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Re: nose above grill cracking [message #148248 is a reply to message #148247]

Mon, 31 October 2011 00:49

GMC Cruse

Messages: 606
Registered: June 2009
Location: SE Michigan

Karma: 3

Senior Member

RF_Burns wrote on Mon, 31 October 2011 01:31

Drilling a small hole at the current end of the crack should keep it from going further. Then v out the crack and repair it with a SMC compatible material.

Mike K. '75 PB Southeast Michigan

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Re: nose above grill cracking [message #148267 is a reply to message #148247]

Mon, 31 October 2011 10:30

WD0AFQ

Messages: 7111
Registered: November 2004
Location: Dexter, Mo.

Karma: 207

Senior Member

Bruce, the little piece just under my grille did that. I bought a new one from Frank Jenkins back in 06. Last month I had it painted. Maybe in 4 more years I will install it.
There are folks that put a long threaded rod from one side of the cap to the other. I suspect I will do that when I replace this piece. The rod is supposed to keep this from happening. I think they put it between the headlight buckets.
I am sure others, who have done this, will chime in.
As far as the "fix" on your old cap, I don't know. I hate body work.
Dan

3 In Stainless Exhaust Headers One Ton All Discs/Reaction Arm 355 FD/Quad Bag/Alum Radiator Manny Tran/New eng. Holley EFI/10 Tire Air Monitoring System Solarized Coach/Upgraded Windows Satelite TV/On Demand Hot Water/3Way Refer

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Re: [GMCnet] nose above grill cracking [message #148275 is a reply to message #148247]

Mon, 31 October 2011 11:18

Billy Massey

Messages: 916
Registered: January 2004
Location: Central Texas

Karma: 1

Senior Member

Your problem might be similar to Emery's. Look at his solution:
http://www.gmcmhphotos.com/photos/showgallery.php?cat=3130

bdub

On Mon, Oct 31, 2011 at 12:31 AM, Bruce Hislop <bruce@perthcomm.com> wrote:

>
>
> I have a crack in the point of the front cap that is slowly growing
> longer. I'm talking about between the 2 front access doors,right above the
> grill where the SCM comes to a point in the nose.
>
> I suspect it is a stress point there. The crack was maybe 1/2" long when I
> got the coach in 2008, now its about 2" long.
>
> Anything I can do to repair it, or stop it from getting worse?
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bdub
bdub.net

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Re: nose above grill cracking [message #148288 is a reply to message #148247]

Mon, 31 October 2011 13:02

RF_Burns

Messages: 2277
Registered: June 2008
Location: S. Ontario, Canada

Karma: 3

Senior Member

I've heard of the hole trick to stop the spread of a crack.

Maybe mount something using the hole!

Trick out my rig! Laughing

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Re: [GMCnet] nose above grill cracking [message #148289 is a reply to message #148267]

Mon, 31 October 2011 13:04

emerystora

Messages: 4442
Registered: January 2004

Karma: 13

Senior Member

I did this years ago and documented the pictures here:

http://www.gmcmhphotos.com/photos/showgallery.php?cat=3130

Emery Stora

On Oct 31, 2011, at 9:30 AM, Dan Gregg wrote:

>
>
> Bruce, the little piece just under my grille did that. I bought a new one from Frank Jenkins back in 06. Last month I had it painted. Maybe in 4 more years I will install it.
> There are folks that put a long threaded rod from one side of the cap to the other. I suspect I will do that when I replace this piece. The rod is supposed to keep this from happening. I think they put it between the headlight buckets.
> I am sure others, who have done this, will chime in.
> As far as the "fix" on your old cap, I don't know. I hate body work.
> Dan
> --
> Dan & Teri Gregg
> Soft White LED Lighting
>
> http://danandteri.blogspot.com/
>
>
>
>
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> GMCnet mailing list
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Re: [GMCnet] nose above grill cracking [message #148325 is a reply to message #148289]

Mon, 31 October 2011 19:45

USAussie

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

Karma: 6

Senior Member

Emery,

Looks like Skip copied your fix!

http://www.gmcmhphotos.com/photos/showphoto.php?photo=39886

You can just barely see the all thread rod above the bottom of the grill.

One thing, when I got Double Trouble I found the lines from the trans cooler sitting on the all thread, I lifted them up and sure
enough they were chaffed. I wrapped a piece of water hose around each one of them and tie wrapped them in place. When Ken H and I
installed a new aluminum radiator I moved the trans cooler below the A/C condenser and the lines didn't come near it anymore.

Regards,
Rob M.

-----Original Message-----
From: Emery Stora

I did this years ago and documented the pictures here:

http://www.gmcmhphotos.com/photos/showgallery.php?cat=3130

Emery Stora

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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

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Re: [GMCnet] nose above grill cracking [message #148345 is a reply to message #148325]

Mon, 31 October 2011 22:16

Ken Henderson

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

Karma: 9

Senior Member

So did I. The tabs where the "fenders" bolt to the under-grille cross
piece are prone to breaking off; Emery's headlight bucket tie rod will pull
the assembly back together and hold it there.

The all-thread also serves as a convenient anchor point for some of the
springs I use to hold the grille in place.

Ken H.

On Mon, Oct 31, 2011 at 8:45 PM, Rob Mueller <robmueller@iinet.net.au>wrote:

> Emery,
>
> Looks like Skip copied your fix!
>
> http://www.gmcmhphotos.com/photos/showphoto.php?photo=39886
>
> You can just barely see the all thread rod above the bottom of the grill.
>
> One thing, when I got Double Trouble I found the lines from the trans
> cooler sitting on the all thread, I lifted them up and sure
> enough they were chaffed. I wrapped a piece of water hose around each one
> of them and tie wrapped them in place. When Ken H and I
> installed a new aluminum radiator I moved the trans cooler below the A/C
> condenser and the lines didn't come near it anymore.
>
> Regards,
> Rob M.
>
>
> -----Original Message-----
> From: Emery Stora
>
> I did this years ago and documented the pictures here:
>
> http://www.gmcmhphotos.com/photos/showgallery.php?cat=3130
>
>
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Ken Henderson
Americus, GA
www.gmcwipersetc.com
Large Wiring Diagrams
76 X-Birchaven
76 X-Palm Beach

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