Reply
 
Thread Tools Search this Thread Display Modes
 
Old 08-03-2004, 07:02 AM   #1
1 Rivet Member
 
Join Date: Jun 2003
Posts: 5
AC shroud removal

Im in the process of resealing around all of the solar domes , air conditioner and windows on my 1974 31 ft. International. I have removed most of the old silicon that the PO had globed all over the original factory calking (velum I assume). My question is how do remove the outside shroud on my Armstrong AC unit? I need to replace the metal fan cover that is almost rusted away and Id like to remove and inspect w/o damaging the shroud. The shroud is intact but seems very fragile. I can see 4 screws on the top but there seems to be something else holding it on. Is the shroud a 2 piece unit that separates at the blue seam.?

Pat
__________________

__________________
Pat Dolan
1966 Trade Wind
Suburban 2001
Pat66TW is offline   Reply With Quote
Old 08-03-2004, 08:36 AM   #2
Just a member
 
thenewkid64's Avatar
 
1978 28' Argosy 28
Tampa Bay , Florida
Join Date: Mar 2002
Posts: 4,539
Images: 21
Send a message via AIM to thenewkid64 Send a message via Yahoo to thenewkid64 Send a message via Skype™ to thenewkid64
Pat,

The shroud is one piece. The trim and blue insert add strength, but does not make it into a clam shell style. The 4 bolts are all that physically holds it to the roof, actually they hold the shroud to the AC unit. On install there may have been Vulcem that the shroud sat in or other sealant that is adhering it to the roof sheet. I would take a wide thin putty knife and slide it between the shroud and the roof. The putty knife should cut the sealant so you can remove the shroud.
__________________

__________________
Brett G
WBCCI #5501 AIR # 49
-------------------------
1978 Argosy 28 foot Motorhome

Wise men talk because they have something to say; fools, because they have to say something. -- Plato


thenewkid64 is offline   Reply With Quote
Old 08-03-2004, 10:30 AM   #3
2 Rivet Member
 
Join Date: Apr 2004
Posts: 90
Various models of shrouds.

thenewkid64,
Is your description of removal the same with all the Armstrong shrouds?
I believe there are 3 or 4 different shrouds.

it is amazing that there is no shoe or flashing that the shrouds mount into at the roof line. Looks like without such that wind turbulance would definately stress the hell out of the things. Maybe why so many are seen along roadsides.

Did the factory lay a bed of Vulkem and imbed the shroud bottom in it?
You mention clamshell type shrouds. Were some of those Armstrong?

What about other makes? are most of those clamshell? and do they have shoes?
__________________
roadeo is offline   Reply With Quote
Old 08-03-2004, 01:18 PM   #4
3 Rivet Member
 
montanaandy's Avatar
 
Join Date: May 2002
Posts: 120
AC Shroud Removal

I removed the shroud around my 79-31' last week to patch it up (stress cracks along the side - have a new shroud that I will paint first and then replace). The shroud is fragile but is securely fastened to the AC unit. The shroud is held in place by 4 bolts that were easily removed. I slid the shroud (1 piece) top side down along an angled ladder to my wife. Sealed the cracks with parbond and put it back on with new bolts & washers. I Do not have any leaks so left the vulkem surrounding the AC unit alone. The new/replacement shroud is a 2 piece that I will need to seal and add mesh to the intake holes prior to installation. Montanaandy
__________________
montanaandy is offline   Reply With Quote
Old 08-03-2004, 02:15 PM   #5
Just a member
 
thenewkid64's Avatar
 
1978 28' Argosy 28
Tampa Bay , Florida
Join Date: Mar 2002
Posts: 4,539
Images: 21
Send a message via AIM to thenewkid64 Send a message via Yahoo to thenewkid64 Send a message via Skype™ to thenewkid64
The Armstrong shrouds all mount the same way. There are some different configurations, but there is always 4 bolts up top holding it on.

If the factory installed it, I would doubt that there is vulcem holding it to the roof. Based on the description of the other sealant that was removed from the rest of the coach the PO likely sealed the shroud to the roof.

Most of the other brands use a one piece shroud too, other than Dometic and Carrier. On the Penguin unit the shroud is a 2 piece affair. The bottom is under the unit and the top bolts on to the top of it, so when you service the unit you are not disturbing the whole thing. Carrier has a lower mounting plate from what I have seen.

I am not an aeronautical engineer, but I would bet the down force created by the top half of the shroud is greater than the lift created on the lower half since the lower air is disturbed by the roof vents, antenna, etc. The shrouds that blow off seem to have failed to to becoming brittle from UV exposure and ripping at the mounting points.
__________________
Brett G
WBCCI #5501 AIR # 49
-------------------------
1978 Argosy 28 foot Motorhome

Wise men talk because they have something to say; fools, because they have to say something. -- Plato


thenewkid64 is offline   Reply With Quote
Old 08-03-2004, 02:22 PM   #6
Rivet Master
 
87MH's Avatar
 
1978 31' Sovereign
Texas Airstream Harbor , Zavalla, in the Deep East Texas Piney Woods on Lake Sam Rayburn
Join Date: Jan 2003
Posts: 2,435
Images: 292
Quote:
Originally Posted by thenewkid64
....... The shrouds that blow off seem to have failed to becoming brittle from UV exposure .........
I can attest to that......

When I replaced the original Coleman AC on the '87 last year I tried to be as careful as possible with the removal..........but not nearly careful enough.

The old plastic gave new meaning to the term "eggshell".

As expensive as these are just for a shroud (factory) replacement, and the inability to repair the old shrouds (at least the Coleman's), I would suggest an aluminum fabricated shroud for a replacement.
__________________
Dennis

"Suck it up, spend the bucks, do it right the first time."

WBCCI # 1113
AirForums #1737

Trailer '78 31' Sovereign

Living Large at an Airstream Park on the Largest Lake Totally Contained in Texas
Texas Airstream Harbor, Inc.
87MH is offline   Reply With Quote
Old 08-03-2004, 02:33 PM   #7
Just a member
 
thenewkid64's Avatar
 
1978 28' Argosy 28
Tampa Bay , Florida
Join Date: Mar 2002
Posts: 4,539
Images: 21
Send a message via AIM to thenewkid64 Send a message via Yahoo to thenewkid64 Send a message via Skype™ to thenewkid64
From the CW site:

Fits Coleman 11,000 BTU, 13,500 BTU and 15,000 BTU models. Built-in protective rear intake grill guards air conditioner's fins. Tough high density polyethylene with UV inhibitors provide long life in the sun. Unique front bumper design deflects branches and prevents wind lift. Mounts like original and includes stainless steel mounting hardware and instructions.In Polar White.
Attached Images
 
__________________
Brett G
WBCCI #5501 AIR # 49
-------------------------
1978 Argosy 28 foot Motorhome

Wise men talk because they have something to say; fools, because they have to say something. -- Plato


thenewkid64 is offline   Reply With Quote
Old 08-03-2004, 02:44 PM   #8
Rivet Master
 
Over59's Avatar
 
1959 26' Overlander
Putnam , Connecticut
Join Date: Sep 2003
Posts: 3,064
Images: 37
Pulled the cover off mine this weekend. Had a hell of a time getting the edges clear of the AC. Had to work each corner up, put a stick in to keep it from going back down when lifting opposite corner. Finally broke away. Mine only worked lifting the back first and pushing it forward to get the front free. Damn if I could see what held it. Also having a time getting it to line up with all four bolts to put it on. Should be alot easier with two people up top on ladders.
Good luck
__________________

__________________
Over59 is offline   Reply With Quote
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Replacing AC Shroud - Clean Armstrong Too? montanaandy Furnaces, Heaters, Fireplaces & Air Conditioning 5 06-02-2013 11:03 PM
Plastic beads for clearcoat removal? john hd Cleaning, Stripping & Polishing 23 10-21-2011 12:25 PM
Replacing Air conditioner shroud JD85EXCELLA32 Furnaces, Heaters, Fireplaces & Air Conditioning 5 09-04-2003 07:23 PM
Isuzu Diesel fan shroud dienst1 Mechanics Corner - Engines, Transmission & More... 3 08-14-2003 10:18 PM
Check your aging A/C shroud Jim Clark Furnaces, Heaters, Fireplaces & Air Conditioning 2 07-25-2002 11:30 PM


Virginia Campgrounds

Reviews provided by




Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 05:42 AM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.

Airstream is a registered trademark of Airstream Inc. All rights reserved. Airstream trademark used under license to Social Knowledge LLC.