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leaks [message #327499] Tue, 26 December 2017 10:44 Go to next message
jhbridges is currently offline  jhbridges   United States
Messages: 8412
Registered: May 2011
Location: Braselton ga
Karma: -74
Senior Member
I have a leak(s) in heavy rain. The water enters either around the front vent escutcheon or the rear corner, depending on how the coach is levelled. Leads me to believe it's leaking around a clearance light, or something on the roof. Either way, resealing is in order. Anyone got a fan pressure system close?

Also, Tower Sealants is local to me. Any idea which of their products should be used to seal seams on the GMC?

==johnny


Foolish Carriage, 76 26' Eleganza(?) with beaucoup mods and add - ons. Braselton, Ga. I forgive them all, save those who hurt the dogs. They must answer to me in hell
Re: leaks [message #327500 is a reply to message #327499] Tue, 26 December 2017 10:51 Go to previous messageGo to next message
94nubble is currently offline  94nubble   United States
Messages: 275
Registered: July 2011
Location: Chesapeake VA
Karma: 3
Senior Member
I called around to a few Air conditioning repair shops and one gave me a squirrel cage fan from a furnace unit that they were going to through away. Fits perfectly over a roof vent with the cover removed. I hooked up a power cord to it and found about a dozen spots leaking air.

Tom McManus
1977 Royale
Chesapeake VA
Re: leaks [message #327501 is a reply to message #327499] Tue, 26 December 2017 10:56 Go to previous messageGo to next message
cbryan   United States
Messages: 451
Registered: May 2012
Location: Ennis, Texas
Karma: 3
Senior Member
Hey, Johnny,

Happy Holidays. Jim Bounds is the sealer king, I think he has a specific product, an RTV that he uses. I am speculating that Jim K's gaskets he sells separately might do the trick for the sealing of the clearance lights. JimK, Applied GMC in California, Jim Bounds, the GMC Co-op in Orlando. Butyl also comes to mind. Take your drill and bits up to the roof as the screws are notorious for not coming out. Maybe your torch if you have to destroy the lens. There is a seam up there, between the roof and end cap. Leveling the coach might spring that open and closed.

Good luck with the project.

Carey


Carey from Ennis, Texas 78 Royale, 500 Cadillac, Rance Baxter EFI.

[Updated on: Tue, 26 December 2017 10:59]

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Re: leaks [message #327502 is a reply to message #327500] Tue, 26 December 2017 11:50 Go to previous messageGo to next message
cbryan   United States
Messages: 451
Registered: May 2012
Location: Ennis, Texas
Karma: 3
Senior Member
94nubble wrote on Tue, 26 December 2017 10:51
I called around to a few Air conditioning repair shops and one gave me a squirrel cage fan from a furnace unit that they were going to through away. Fits perfectly over a roof vent with the cover removed. I hooked up a power cord to it and found about a dozen spots leaking air.


I've got one in the attic! Nice idea, Tom.

Carey


Carey from Ennis, Texas 78 Royale, 500 Cadillac, Rance Baxter EFI.
Re: [GMCnet] leaks [message #327504 is a reply to message #327499] Tue, 26 December 2017 13:36 Go to previous messageGo to next message
George Zhookoff is currently offline  George Zhookoff   United States
Messages: 398
Registered: December 2004
Location: Snellville, GA
Karma: 6
Senior Member
Johnny
Yes. I have the Dixielanders blower system. All you need is a ladder an extension cord and some bubble water. It sits over the roof vent.
I'm headed to the lake tomorrow to check on the boat and could drop it at your place.

Let me know!

Look for Wurth Seam and Seal.

George Zhookoff


> On Dec 26, 2017, at 11:44 AM, Johnny Bridges via Gmclist wrote:
>
> I have a leak(s) in heavy rain. The water enters either around the front vent escutcheon or the rear corner, depending on how the coach is levelled.
> Leads me to believe it's leaking around a clearance light, or something on the roof. Either way, resealing is in order. Anyone got a fan pressure
> system close?
>
> Also, Tower Sealants is local to me. Any idea which of their products should be used to seal seams on the GMC?
>
> ==johnny
>
> --
> 76 26' Eleganza(?) with beaucoup mods and add - ons.
> Braselton, Ga.
> "I forgive them all, save those who hurt the dogs. They must answer to me in hell" - ol Andy, paraphrased
>
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org


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Re: [GMCnet] leaks [message #327506 is a reply to message #327504] Tue, 26 December 2017 14:16 Go to previous messageGo to next message
powwerjon is currently offline  powwerjon   United States
Messages: 849
Registered: March 2013
Karma: -2
Senior Member

This is the one that I built.

http://www.gmcmhphotos.com/photos/g6110-leak-check-air-blower.html

J.R. Wright
GMC GreatLakerTech Editor
78 Buskirk 30' Stretch
75 Avion Under Reconstruction
Michigan


> On Dec 26, 2017, at 12:36 PM, George Zhookoff wrote:
>
> Johnny
> Yes. I have the Dixielanders blower system. All you need is a ladder an extension cord and some bubble water. It sits over the roof vent.
> I'm headed to the lake tomorrow to check on the boat and could drop it at your place.
>
> Let me know!
>
> Look for Wurth Seam and Seal.
>
> George Zhookoff
>
>
>> On Dec 26, 2017, at 11:44 AM, Johnny Bridges via Gmclist wrote:
>>
>> I have a leak(s) in heavy rain. The water enters either around the front vent escutcheon or the rear corner, depending on how the coach is levelled.
>> Leads me to believe it's leaking around a clearance light, or something on the roof. Either way, resealing is in order. Anyone got a fan pressure
>> system close?
>>
>> Also, Tower Sealants is local to me. Any idea which of their products should be used to seal seams on the GMC?
>>
>> ==johnny
>>
>> --
>> 76 26' Eleganza(?) with beaucoup mods and add - ons.
>> Braselton, Ga.


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Re: leaks [message #327508 is a reply to message #327499] Tue, 26 December 2017 14:42 Go to previous messageGo to next message
jhbridges is currently offline  jhbridges   United States
Messages: 8412
Registered: May 2011
Location: Braselton ga
Karma: -74
Senior Member
George -
Come on down!!! I have the glass guy coming by to put a new and badly needed windshield in the Ratrod, so I'll be here at least all morning. If you're later than that, gimme a call and either Paula or I will make it a point to be there.

Corey -
I'll ask Bounds, and tell the Tower guy to gimme their equivalent. For many yeatrs, if you bopught a car built in Atlanta, the body sealer was made by Tower. GM and Ford, I'm told.

--johnny


Foolish Carriage, 76 26' Eleganza(?) with beaucoup mods and add - ons. Braselton, Ga. I forgive them all, save those who hurt the dogs. They must answer to me in hell
Re: [GMCnet] leaks [message #327509 is a reply to message #327508] Tue, 26 December 2017 14:56 Go to previous messageGo to next message
George Zhookoff is currently offline  George Zhookoff   United States
Messages: 398
Registered: December 2004
Location: Snellville, GA
Karma: 6
Senior Member
Be there mid-morning.

George Zhookoff


> On Dec 26, 2017, at 3:42 PM, Johnny Bridges via Gmclist wrote:
>
> George -
> Come on down!!! I have the glass guy coming by to put a new and badly needed windshield in the Ratrod, so I'll be here at least all morning. If
> you're later than that, gimme a call and either Paula or I will make it a point to be there.
>
> Corey -
> I'll ask Bounds, and tell the Tower guy to gimme their equivalent. For many yeatrs, if you bopught a car built in Atlanta, the body sealer was made
> by Tower. GM and Ford, I'm told.
>
> --johnny
> --
> 76 26' Eleganza(?) with beaucoup mods and add - ons.
> Braselton, Ga.
> "I forgive them all, save those who hurt the dogs. They must answer to me in hell" - ol Andy, paraphrased
>
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org


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Re: [GMCnet] leaks [message #327510 is a reply to message #327509] Tue, 26 December 2017 15:37 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
Johnny, we live in Oregon. It rains here. A lot. Steady, for days at a
time. If we leave our coaches out in it, they leak.
If the coaches never moved, sealing them would not be much of a
chore. But, they move, and flex. So your sealant must move and flex
likewise. Some sealants do that better than others. Some name brands I have
successfully used are:
Sika-Flex non hardening sealant.
3M 5200 marine sealant, rapid setting.
There are several others out there, but, I ALWAYS, ALWAYS, stay away
from silicone based products. Reasons, you cannot ever successfully paint
over silicone. And it is a bitch to remove.
One other product that I have used is a tape like product that comes
in rolls. It has a peel off membrane that you remove as it is applied. It
is the stickiest stuff that I have ever had my hands on. I use it where the
roof end caps join the aluminum roofing. It costs, my price, over $10.00 a
foot. That's why I don't often recommend it to the GMC community, they are
a cheap bunch, no matter what the quality of the product is. But the stuff
works, period.
Today, I just came from the E.R. and had my nose cauterized. So, I
can't remember stuff like the manufacturer of the tape. If you like, I will
stumble down to the shop tomorrow and find the roll it came on.
Jim Hupy
Salem, Or

On Dec 26, 2017 12:57 PM, "George Zhookoff" wrote:

> Be there mid-morning.
>
> George Zhookoff
>
>
>> On Dec 26, 2017, at 3:42 PM, Johnny Bridges via Gmclist gmclist@list.gmcnet.org> wrote:
>>
>> George -
>> Come on down!!! I have the glass guy coming by to put a new and badly
> needed windshield in the Ratrod, so I'll be here at least all morning. If
>> you're later than that, gimme a call and either Paula or I will make it
> a point to be there.
>>
>> Corey -
>> I'll ask Bounds, and tell the Tower guy to gimme their equivalent. For
> many yeatrs, if you bopught a car built in Atlanta, the body sealer was made
>> by Tower. GM and Ford, I'm told.
>>
>> --johnny
>> --
>> 76 26' Eleganza(?) with beaucoup mods and add - ons.
>> Braselton, Ga.
>> "I forgive them all, save those who hurt the dogs. They must answer to
> me in hell" - ol Andy, paraphrased
>>
>>
>> _______________________________________________
>> 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
>
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Re: [GMCnet] leaks [message #327511 is a reply to message #327510] Tue, 26 December 2017 16:31 Go to previous messageGo to next message
tphipps is currently offline  tphipps   United States
Messages: 3005
Registered: August 2004
Location: Spanish Fort, AL
Karma: 9
Senior Member
Great tape product for seam sealing and locking down the edges on vents is Eternatape. Buy it at your favorite RV supply store, or sometimes Wal-Mart. When I last did a roof vent, I used a small kit from Camping World (disclaimer: Grabbed it from mark-down corner, so about half price). Once applied and set-up, it is very difficult to remove.
Tom


2012 Phoenix Cruiser model 2552 KA4CSG
Re: [GMCnet] leaks [message #327518 is a reply to message #327511] Wed, 27 December 2017 07:08 Go to previous messageGo to next message
Will Albers is currently offline  Will Albers   United States
Messages: 183
Registered: November 2017
Location: Detroit MI (Belleville)
Karma: 2
Senior Member
I'll agree on eternabond tape. It's not the most attractive of product, but
it does awesome for sealing the seams front and rear, as well as the drip
rail/awning. I placed around 70 feet of the stuff on my coach when I found
it leaking... Needed to patch before the winter. I may remove it, or apply
smaller sections come a warm summer day. Purely for cosmetic reasons.

I also used it on the metal roof of my garage =)

On Dec 26, 2017 5:32 PM, "Thomas Phipps" wrote:

> Great tape product for seam sealing and locking down the edges on vents is
> Eternatape. Buy it at your favorite RV supply store, or sometimes Wal-Mart.
> When I last did a roof vent, I used a small kit from Camping World
> (disclaimer: Grabbed it from mark-down corner, so about half price). Once
> applied
> and set-up, it is very difficult to remove.
> Tom
> --
> 2012 Phoenix Cruiser model 2552
> KA4CSG
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
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>
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1978 Palm Beach.
Detroit Michigan
Re: [GMCnet] leaks [message #327519 is a reply to message #327518] Wed, 27 December 2017 09:03 Go to previous messageGo to next message
Bullitthead is currently offline  Bullitthead   United States
Messages: 1411
Registered: November 2013
Karma: 5
Senior Member
Don't forget Flexseal and Flextape (as seen on TV). Somewhat expensive but it works and is available at Dollar General. Still definitely cheaper than the damage a leak will do.

Terry Kelpien ASE Master Technician 73 Glacier 260 Smithfield, Va.
Re: leaks [message #327520 is a reply to message #327499] Wed, 27 December 2017 09:17 Go to previous messageGo to next message
jhbridges is currently offline  jhbridges   United States
Messages: 8412
Registered: May 2011
Location: Braselton ga
Karma: -74
Senior Member
George just appeared with the blower - as soon as I get dry weather I'll find out where it's leaking. He said when they redid the drip rail seams on his coach, his son in law talked him into using Simple Green on the screws. Seems to of worked better than Elixer or Kroil. I figure to give it a try.

Excelsior!!

--johnny


Foolish Carriage, 76 26' Eleganza(?) with beaucoup mods and add - ons. Braselton, Ga. I forgive them all, save those who hurt the dogs. They must answer to me in hell
Re: [GMCnet] leaks [message #327521 is a reply to message #327510] Wed, 27 December 2017 09:30 Go to previous messageGo to next message
Tom Lins is currently offline  Tom Lins   United States
Messages: 372
Registered: February 2004
Location: St Augustine, FL
Karma: 1
Senior Member
James Hupy wrote on Tue, 26 December 2017 16:37
Johnny, we live in Oregon. It rains here. A lot. Steady, for days at a
time. If we leave our coaches out in it, they leak.
If the coaches never moved, sealing them would not be much of a
chore. But, they move, and flex. So your sealant must move and flex
likewise. Some sealants do that better than others. Some name brands I have
successfully used are:
Sika-Flex non hardening sealant.
3M 5200 marine sealant, rapid setting.
There are several others out there, but, I ALWAYS, ALWAYS, stay away
from silicone based products. Reasons, you cannot ever successfully paint
over silicone. And it is a bitch to remove.
One other product that I have used is a tape like product that comes
in rolls. It has a peel off membrane that you remove as it is applied. It
is the stickiest stuff that I have ever had my hands on. I use it where the
roof end caps join the aluminum roofing. It costs, my price, over $10.00 a
foot. That's why I don't often recommend it to the GMC community, they are
a cheap bunch, no matter what the quality of the product is. But the stuff
works, period.
Today, I just came from the E.R. and had my nose cauterized. So, I
can't remember stuff like the manufacturer of the tape. If you like, I will
stumble down to the shop tomorrow and find the roll it came on.
Jim Hupy
Salem, Or



Jim
When you get a chance could you post the brand of that tape.

Thanks


Tom Lins
St Augustine, FL
77 GM Rear Twin, Dry Bath, 455, Aluminum Radiator Quad-Bag Suspension Solar Panel
Manuals on DVD
YOUTUBE Channel: GMC Dealer Training Tapes
http://www.bdub.net/tomlins/
Re: [GMCnet] leaks [message #327522 is a reply to message #327520] Wed, 27 December 2017 09:44 Go to previous message
James Hupy is currently offline  James Hupy   United States
Messages: 6806
Registered: May 2010
Karma: -62
Senior Member
This is for Tom Lins. I will try to find it today and post the name on this
thread. I look and feel like I have gone 10 rounds with Mike Tyson. Went to
the E.R. yesterday and had my leaky nose cauterized. This morning, no
leaks. But, a bit of swelling, etc. Couple of days, that should go away.
Guess I could soak my head in a bucket of ice cubes for 30 minutes or so.
That ought to do the trick.
Jim Hupy
Salem, Oregon
78 GMC ROYALE 403

On Dec 27, 2017 7:31 AM, "Johnny Bridges via Gmclist" <
gmclist@list.gmcnet.org> wrote:

> George just appeared with the blower - as soon as I get dry weather I'll
> find out where it's leaking. He said when they redid the drip rail seams on
> his coach, his son in law talked him into using Simple Green on the
> screws. Seems to of worked better than Elixer or Kroil. I figure to give
> it a
> try.
>
> Excelsior!!
>
> --johnny
> --
> 76 26' Eleganza(?) with beaucoup mods and add - ons.
> Braselton, Ga.
> "I forgive them all, save those who hurt the dogs. They must answer to me
> in hell" - ol Andy, paraphrased
>
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
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