Reply
 
Thread Tools Search this Thread Display Modes
 
Old 07-08-2009, 11:31 AM   #1
3 Rivet Member
 
1963 24' Tradewind
Cape Coral , Florida
Join Date: Dec 2008
Posts: 200
Galley Fan ?

Work on my 63 Tradewind progresses. I have the aluminum flappy exterior cover for the galley sidewall fan. I'm scratching my head over how to set up the opeing, closing and latching.

It seems like there would be a spring that would hold the door open unless pulled shut against the tension of the spring. At the lower edge of the inside of that exterior door (whew!) there is a "U" shaped feature. Inside that feature is a very rusty remnant of a spring with what appears to be the remains of the tassel on a pull-chain.

It looks like the chain would go through a hole just below the fan shroud and then through the inside fan cover and then, what? Is there a catch to hold the outer door closed?

Does anyone have a picture of what the setup is supposed to look like? Any ideas regarding replacement spring(s) for the outer door?
__________________

__________________
dieseleagle is offline   Reply With Quote
Old 07-08-2009, 11:40 AM   #2
4 Rivet Member
 
2008 16' Safari
Destrehan , Louisiana
Join Date: May 2009
Posts: 395
I may be wrong, so don't take this for the last word. I believe this vent was opened and closed from inside the galley. There was a small lever next to the fan ducting inside. By moving this lever you both opened the vent and turned a small fan on. Sounds like the whole thing has rusted away.
__________________

__________________
dlb435 is offline   Reply With Quote
Old 07-08-2009, 01:11 PM   #3
Rivet Master
 
vswingfield's Avatar
 
1983 34' Excella
1967 24' Tradewind
Little Rock , Arkansas
Join Date: Nov 2006
Posts: 3,773
Images: 32
Does your look like this?

RV Sidewall Exhaust Fan

Click the More Photos button for diagrams. The pull chain made me think of this kind and the time frame is about right.
__________________
Vaughan
vswingfield is offline   Reply With Quote
Old 07-08-2009, 02:34 PM   #4
4 Rivet Member
 
BarryIowa's Avatar
 
1955 22' Flying Cloud
Polk City , Iowa
Join Date: Jul 2008
Posts: 353
I'll look at mine tonight and shoot a picture and send it to you. My 55 looks and works the same (from memory) as my 62 Overlander. There was a ball chain that you pull and release to open so yes, there is some type of spring or tension that if there was no chain, would be open all of the time. Sounds like your spring is missing.
__________________
BarryIowa is offline   Reply With Quote
Old 07-08-2009, 03:21 PM   #5
3 Rivet Member
 
1963 24' Tradewind
Cape Coral , Florida
Join Date: Dec 2008
Posts: 200
Thanks for the replies. Yes, any and all springs are missing. The side view drawing on the vintagetrailersupply site confirms my general idea. It would be very helpful to see a picture of the spring that is attached to the outside door so I can get an idea of the size and how it is fastened. The drawing also suggests some kind of tensioner between the outer door and the inner cover, through which the chain goes. A picture of that would be hugely helpful so I can determine it its something I can replicate.
__________________
dieseleagle is offline   Reply With Quote
Old 07-08-2009, 03:29 PM   #6
Rivet Master
 
vswingfield's Avatar
 
1983 34' Excella
1967 24' Tradewind
Little Rock , Arkansas
Join Date: Nov 2006
Posts: 3,773
Images: 32
My take on the drawing was that the spring is around the hinge at the top and the "tensioner" on the chain was an on/off switch that toggles when you tighten the chain. That is, pull it tight to release the lid and it switches on and when you pull it tight again to lock it closed it switches off. That strikes a familiar cord as I recall, but it was a long time ago that I saw one like that.
__________________
Vaughan
vswingfield is offline   Reply With Quote
Old 07-09-2009, 09:17 AM   #7
4 Rivet Member
 
BarryIowa's Avatar
 
1955 22' Flying Cloud
Polk City , Iowa
Join Date: Jul 2008
Posts: 353
Pictures as promised

Here you go. You can clearly see in the exterior photo the pair of springs and the switch that when open, turns on the fan. Let me know if you need any further photos. I didn't have time to remove the cover and take pictures as I was running kind of late.

Regards,
Barry
Attached Thumbnails
Click image for larger version

Name:	DSCN1233.jpg
Views:	59
Size:	246.1 KB
ID:	83696   Click image for larger version

Name:	DSCN1235.jpg
Views:	74
Size:	173.7 KB
ID:	83697  

__________________
BarryIowa is offline   Reply With Quote
Old 07-09-2009, 10:33 AM   #8
3 Rivet Member
 
1963 24' Tradewind
Cape Coral , Florida
Join Date: Dec 2008
Posts: 200
Thank you very much. I know it takes time to go through all the steps to post pics. It is very helpful to see how the springs are sized and attached. I can see how the springs will pull the chain through when relaxed. But, how does it hold tension to keep the outer door closed?
__________________
dieseleagle is offline   Reply With Quote
Old 07-09-2009, 10:38 AM   #9
Rivet Master
 
vswingfield's Avatar
 
1983 34' Excella
1967 24' Tradewind
Little Rock , Arkansas
Join Date: Nov 2006
Posts: 3,773
Images: 32
Quote:
Originally Posted by dieseleagle View Post
Thank you very much. I know it takes time to go through all the steps to post pics. It is very helpful to see how the springs are sized and attached. I can see how the springs will pull the chain through when relaxed. But, how does it hold tension to keep the outer door closed?
The hole that the chain travels through has a small slot on one side that will hold the balls on the ball chain. Pull it tight and slip the chain into the slot.
__________________
Vaughan
vswingfield is offline   Reply With Quote
Old 07-09-2009, 11:14 AM   #10
3 Rivet Member
 
1963 24' Tradewind
Cape Coral , Florida
Join Date: Dec 2008
Posts: 200
By golly. Now I remember. A gadget doesn't have to have a computer in it to work just fine.
__________________
dieseleagle is offline   Reply With Quote
Old 07-13-2009, 01:20 PM   #11
3 Rivet Member
 
1963 24' Tradewind
Cape Coral , Florida
Join Date: Dec 2008
Posts: 200
Does anyone know where to source the torsion springs that hold the outer door open? I've tried the blue and orange big box stores, Ace Hardware, Fastenal and Brinker Brown.
__________________
dieseleagle is offline   Reply With Quote
Old 07-20-2009, 06:41 AM   #12
3 Rivet Member
 
1963 24' Tradewind
Cape Coral , Florida
Join Date: Dec 2008
Posts: 200
Thought I'd offer a little update regarding my hunt for replacement "hold-open" springs. So far there are three options, each with a drawback. The first is a company called D.R. Templeman. Very responsive and very helpful. Unfortunately, they don't have anything appropriate in stock. For a $200 setup fee they will run a custom batch and the unit cost would be around $4.00. For just 2 springs this is not an option.

The second is a company called A.S. Raymond (Associated Spring). They stock a spring that would work but discourage direct sales to consumer. One spring is more than $33.00, 2 for 16 each, 5 for 10 each, and 10 for 5 each.

The final option, so far, is ReidSupply. They have a spring in stock that would probably work. Both legs of their spring are 1.25 inches, rather than the leg supporting the door being 2 inches. The unit cost is around $8.00.

For the sake of information, the specs look like: wire diameter- 0.051 in.; OD- .43; relaxed position of ends- 90 degrees; deflection- 180 degrees; mandrel size (ID)- .025; length of coil (axial measurement)-0.50 in.

BTW, I'm not this smart. The guy at D.R. Templeman figured this out from BarryIowa's pictures and and my description.

It seems like pretty much everyone who has a vintage unit probably needs replacement springs. I suppose that part of the fun of the project is the thrill of the chase. Like Sherlock Holmes said: "Watson, the game is afoot."
__________________
dieseleagle is offline   Reply With Quote
Old 07-20-2009, 11:08 PM   #13
4 Rivet Member
 
BarryIowa's Avatar
 
1955 22' Flying Cloud
Polk City , Iowa
Join Date: Jul 2008
Posts: 353
There are a few good vintage trailer salvage outfits. I know I've seen them mentioned here on the forums before. Sounds like the one spring outfit wants to get about $50 from you one way or another
__________________
BarryIowa is offline   Reply With Quote
Old 07-28-2009, 06:51 AM   #14
3 Rivet Member
 
1963 24' Tradewind
Cape Coral , Florida
Join Date: Dec 2008
Posts: 200
I've spent way more time looking for these silly springs than I probably should. I finally found a spring at McMaster-Carr that looked like it might work for a unit cost of $8.06 each including shipping. However, the wire size was only .048 and the leg length was 1.25 in instead of two. They didn't work. The wire was too light and the leg length was so short that it binded up and crushed instead of sliding when the vent cover is shut.

It didn't seem like the wire size should be so puny since .048 isn't that much smaller than .051. So, I brought the broken remnant spring that I took off the trailer in the beginning to work and had one of our service engineers put a caliper on it. Even allowing for the rust it looks to be .063, which is a big difference.

So, back to the drawing board with the internet search. There are a couple of companies that stock more than 700 small torsion springs and not one would work. Even at a premium price I haven't found anything suitable. But, the hunt continues. If I can find the straight stock I may try making some by hand.
__________________

__________________
dieseleagle 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
Replacement Fan Motor for Roof Exhaust Fan SaabLover Furnaces, Heaters, Fireplaces & Air Conditioning 20 01-08-2014 05:00 PM
replacing 71 TW galley tambour Lumatic Cabinets, Counter Tops & Furnishings 6 01-25-2009 07:33 AM
galley vent fan LHall Lights - Interior & Exterior 0 08-10-2007 01:09 PM
Galley Puzzle Cat Cabinets, Counter Tops & Furnishings 9 10-07-2006 06:26 AM
Galley plumbing Warren W. Wiley Fresh Water Systems 8 06-17-2003 10:25 AM


Virginia Campgrounds

Reviews provided by




Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 08:36 PM.


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.