| Leak points [message #180414] |
Wed, 15 August 2012 19:25  |
werewilfs
Messages: 329
Registered: July 2012
Location: Rappahannock County, VA
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Just had a couple of massive rain storms here and since the coach is uncovered there are a couple of leaks that we just discovered...
The PO took all the windows out and resealed them so we don't think it is coming from there. Looking on the outside of the coach though we see the seam behind both the driver and passenger seats coming apart. (photos below)
http://www.gmcmhphotos.com/photos/member-galleries/p45188-wp-000052.html
What is the best product we should use to seal these seams to prevent leaks?
Thanks!
Jared & Stefanie Kohl
Rappahannock County, VA
1973 Painted Desert "Onslow"
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| Re: Leak points [message #180416 is a reply to message #180414] |
Wed, 15 August 2012 19:44  |
tphipps
Messages: 3005
Registered: August 2004
Location: Spanish Fort, AL
Karma: 9
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What ever you use do not use any silicon product. Almost impossible to remove, and very difficult to paint, as paint does not stick to it. Look at Wal-Mart for a product called, "RV Goop.". It is a sealer/adhesive that can be painted.
Difficult to those Pictured seams to leak into the coach. You did not say where you where getting leaks. Common places on the top include the marker lights, antenna, and side rails. My p.o. Installed the vent and A/C without any gasket or sealer. If you have a crankup TV antenna, that is another good spot to check. Basically any opening in the roof is suspect.
Mine had/has leaks from the end caps on the rail along the roof line. I need to remove the rails and remove the gasketing there and redo it.
Chasing leaks is not fun, but being rained on, is less fun.
Good luck, and don't be surprised if they keep showing up. All those movable parts.
Tom Phipps, MS II
2012 Phoenix Cruiser model 2552
KA4CSG
[Updated on: Wed, 15 August 2012 19:45] Report message to a moderator |
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| Re: [GMCnet] Leak points [message #180419 is a reply to message #180416] |
Wed, 15 August 2012 19:53 |
werewilfs
Messages: 329
Registered: July 2012
Location: Rappahannock County, VA
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The floor is very wet on the exact opposite side of these points so I am fairly certain this is where it is coming from.
Thanks for the recommendation for RV Goop. I'll look for it tomorrow.
________________________________
From: Thomas Phipps <tph1pp5@yahoo.com>
To: gmclist@temp.gmcnet.org
Sent: Wednesday, August 15, 2012 8:44 PM
Subject: Re: [GMCnet] Leak points
What ever you use do not use any silicon product. Almost impossible to remove, and very difficult to paint, as paint does not stick to it. Look at Wal-Mart for a product called, "RV Goop.". It is a sealer/adhesive that can be painted.
Difficult to those seams to leak into the coach. You did not say where you where getting leaks. Common places on the top include the marker lights, antenna, and side rails. My p.o. Installed the vent and A/C without any gasket or sealer. If you have a crankup TV antenna, that is another good spot to check. Basically any opening in the roof is suspect.
Mine had/has leaks from the end caps on the rail along the roof line. I need to remove the rails and remove the gasketing there and redo it.
Chasing leaks is not fun, but being rained on, is less fun.
Good luck, and don't be surprised if they keep showing up. All those movable parts.
Tom Phipps, MS II
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Jared & Stefanie Kohl
Rappahannock County, VA
1973 Painted Desert "Onslow"
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| Re: [GMCnet] Leak points [message #180424 is a reply to message #180419] |
Wed, 15 August 2012 20:12 |
tphipps
Messages: 3005
Registered: August 2004
Location: Spanish Fort, AL
Karma: 9
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If that is where the water shows up, the entire seam would be suspect. Also, if the front marker lights leak into the interior of the cabin, the water will follow the internal rails, etc., and leak just behind both the driver and passenger seats.
The rear marker lights leak into the plastic cap and then run down the sides. This was my second big leak area.
Good luck, the RV Goop remains flexible and is listed as being paintable.
Tom, MS II
2012 Phoenix Cruiser model 2552
KA4CSG
[Updated on: Wed, 15 August 2012 20:13] Report message to a moderator |
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| Re: Leak points [message #180434 is a reply to message #180414] |
Wed, 15 August 2012 20:59 |
midlf
Messages: 2212
Registered: July 2007
Location: SE Wisc. (Palmyra)
Karma: 1
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| werewilfs wrote on Wed, 15 August 2012 19:25 |
Just had a couple of massive rain storms here and since the coach is uncovered there are a couple of leaks that we just discovered...
The PO took all the windows out and resealed them so we don't think it is coming from there. Looking on the outside of the coach though we see the seam behind both the driver and passenger seats coming apart. (photos below)
http://www.gmcmhphotos.com/photos/member-galleries/p45188-wp-000052.html
What is the best product we should use to seal these seams to prevent leaks?
Thanks!
|
One practice that has been done by some it is to assume that, no matter how hard you try you will not be able to permanently stop the leaks. Therefore, when working on the coach interior, set it up to cause the water to safely drain out of the coach. There have been several sets of photos on the photo site on how to do this. Hopefully someone will post on how to find them. I'm not sure if there is any info on Gene's site about this as I couldn't find it, but that does not mean it's not there.
Steve Southworth
1974 Glacier TZE064V100150 (for workin on)
1975 Transmode TZE365V100394 (parts & spares)
Palmyra WI
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| Re: Leak points [message #180435 is a reply to message #180416] |
Wed, 15 August 2012 21:04 |
midlf
Messages: 2212
Registered: July 2007
Location: SE Wisc. (Palmyra)
Karma: 1
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| tphipps wrote on Wed, 15 August 2012 19:44 |
What ever you use do not use any silicon product. Almost impossible to remove, and very difficult to paint, as paint does not stick to it. Look at Wal-Mart for a product called, "RV Goop.". It is a sealer/adhesive that can be painted.
<SNIP>
Tom Phipps, MS II
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Silicone can be removed without extreme difficulty.
See here:
http://www.gmcmhphotos.com/photos/g5214-caulk-remover.html
Steve Southworth
1974 Glacier TZE064V100150 (for workin on)
1975 Transmode TZE365V100394 (parts & spares)
Palmyra WI
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| Re: [GMCnet] Leak points [message #180444 is a reply to message #180435] |
Wed, 15 August 2012 22:17 |
Bruce Hart
Messages: 1501
Registered: October 2011
Location: La Grange, Wyoming
Karma: 5
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Another idea presented quite a few months ago was to pressurize the inside
of the coach and than squirt soap solution on suspected areas to see if
they bubble.
There was a picture showing a high volume fan sealed against a side
window.
On Wed, Aug 15, 2012 at 8:04 PM, Steve Southworth <midlf@centurytel.net>wrote:
>
>
> tphipps wrote on Wed, 15 August 2012 19:44
> > What ever you use do not use any silicon product. Almost impossible to
> remove, and very difficult to paint, as paint does not stick to it. Look
> at Wal-Mart for a product called, "RV Goop.". It is a sealer/adhesive that
> can be painted.
> >
> > <SNIP>
> >
> > Tom Phipps, MS II
>
>
> Silicone can be removed without extreme difficulty.
>
> See here:
>
> http://www.gmcmhphotos.com/photos/g5214-caulk-remover.html
>
>
> --
> Steve Southworth
> 1974 Glacier TZE064V100150 (for workin on)
> 1975 Transmode TZE365V100394 (parts & spares)
> Palmyra WI
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>
--
Bruce Hart
1976 Palm Beach
Milliken, Co
GMC=Got More Class
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Bruce Hart
1976 Palm Beach
1977 28' Kingsley
La Grange, Wyoming
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| Re: Leak points [message #180446 is a reply to message #180414] |
Wed, 15 August 2012 22:22 |
Adrien G.
Messages: 474
Registered: May 2008
Location: Burns Flat, OK 73624
Karma: 1
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>>>>>> Just had a couple of massive rain storms here and since the coach is uncovered there are a couple of leaks that we just discovered...
The PO took all the windows out and resealed them so we don't think it is coming from there. Looking on the outside of the coach though we see the seam behind both the driver and passenger seats coming apart. (photos below)
http://www.gmcmhphotos.com/photos/member-galleries/p45188-wp-000052.html
What is the best product we should use to seal these seams to prevent leaks?
At that body joint seam and underneath the belt line molding, there's a (about) 3/4" sq. hole that may not have been filled at assembly, that needs to be filled. The molding needs to be pulled back enough to access that area.
On my coach the pass side was filled but leaking, and the driver side never was filled.
These coaches are made up of a numerous number of panel (SMC and-or Alum and plywood) glued, and-or glued and popped riveted. That only by gutting the body and addressing all the joints can you be water and air leak free. I won't say for how long of a time. Over time sealant does deteriorate and some body flex can breaks the sealant joint.
Good luck.
Adrien & Jenny Genesoto
75 Glenbrook (26-3) Mods LS3.70 FD / Reaction Sys / 80mm Front&Intermidiate / Hydroboost / 16" Tires / Frame Rebuild / Interior Rebuild
Yuba City,Ca. Text 530-nine-3-three-3-nine-nine-6
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