Reply
 
Thread Tools Search this Thread Display Modes
 
Old 06-11-2004, 08:45 PM   #15
Creampuff
 
Creampuff's Avatar
 
1957 22' Flying Cloud
1971 31' Sovereign
1976 29' Ambassador
Malibu , California
Join Date: Apr 2002
Posts: 513
Images: 60
Thumbs up Results Are In!

O.K.- I finally got mine loose, but I can't confirm which technique gave me the results. I tried all the treatments including soaking the unit in brake fluid (another "old hotrodder wive's tale !)
What I did was to take out the unit, bore an angled hole (2 1/8" hole saw) in a length of 2x12, to match the angle of unit, and screwed the unit to it.
Soaking the thing , bikini waxing it, and double- hammers wouldn't budge it, even with a 14" pipewrench.

Finally , I figured I could always grind down the wrench damage as the cap has lots of meat on it, so I went for broke (literally). I rocked the pipewrench back and forth with lots of torque as I could envision the 'egg-shaping' wasn't helping. Finally it gradually broke loose and came off with the rocking motion. The cause of the seizing wasn't really evident except that there seemed to be oxidation/ calcification at the very top. I would suggest you try thr only thing I didn't which is the vinegar or CLR treatment rather than the others.

I have determined that the 'cut-outs' are there for air passage and that it is a fallacy that your tank will explode without removal of the cap.
If all this fails for you- PM me as I have been collecting replacements for this and will have a complete backup once Rob sends me the cap he promised.
__________________

__________________
Murray
AIR #189

"If aluminum isn't magnetic- why am I so attracted to to it?"
Creampuff is offline   Reply With Quote
Old 06-12-2004, 12:45 AM   #16
Rivet Master
 
66Overlander's Avatar
 
1962 22' Safari
2016 30' Classic
Somewhere , in the USA
Join Date: Mar 2004
Posts: 1,973
Images: 41
Murray,
Thanks for the update and I'm glad you eventually got something to work.

I hope to take my filler neck off the trailer this weekend and then try some things throughout the next week at home to get the cap off (I'll probably try Vinegar, maybe WD40, and maybe Limeaway/CLR if I make a trip to the store). My main projects this weekend have to be to try to fix the toilet water valve (can't get a repro, so gotta figure out a way to "substitute a newer one) and check out some of the LP appliances. The cap has been relegated to a lower priority (i.e. evenings) for the moment.

Joe
__________________

__________________
66Overlander is offline   Reply With Quote
Old 06-12-2004, 09:07 AM   #17
Magazine publisher
Commercial Member
 
Airstream Life's Avatar
 
Ferrisburg , Vermont
Join Date: Dec 2003
Posts: 86
Quote:
Originally Posted by Creampuff
The cause of the seizing wasn't really evident except that there seemed to be oxidation/ calcification at the very top.
I just tried to refill my water tank (68 Caravel with identical filler) this week and found the same problem. In my case, the water fill had last been used just 4 months ago, when I towed it back from Florida.

After applying some torque via a pipe wrench, I got it off. I found the same white powder in the threads, which cleans off readily. With the white powder removed, the filler cap comes off normally.

No other indications at all of what might have caused the problem. My working theory is that the snow-melting chemicals I encountered on my way back through Pennsylvanian and New York (another story) accelerated some natural process which created this white powder and locked the threads.

So you don't have to let your 60s water filler sit for 28 years to have this problem. Just one day towing through a snowstorm can do it. FYI.
__________________
Airstream Life is offline   Reply With Quote
Old 06-18-2004, 11:31 PM   #18
Rivet Master
 
66Overlander's Avatar
 
1962 22' Safari
2016 30' Classic
Somewhere , in the USA
Join Date: Mar 2004
Posts: 1,973
Images: 41
Talking Success!!!!

Well, I didn't get to the water fill cap last weekend as planned, but I did take the filler neck off the trailer this evening. I turned it upside down and filled the cap with some old KROIL penetrating oil. I let it set about an hour, tapped it a few times with a pair of hammers (hit it with one while held against the other as suggested earlier in this thread), and then went at it with a pipe wrench on the cap and a set of vice grips on the neck.

To my surprise, I actually got the cap to turn without marring up the cap too much. The neck is fine since I grabbed it on the opposite side of the flange from the cap, so those marks won't be visible once remounted.

The specific technique I used was to set the assembly on the bench on the cap with the neck pointing straight up. I had a helper hold the pipe wrench that was gripping the cap. I positioned the pipe wrench so it grabbed the cap at the two voids so that it didn't put more pressure on the threads. I grabbed the neck with the vice grips just "above" the flange, not at the very end. I held the vice grips in one hand and held onto the neck with my other hand. It took significant effort, but basically turned on the first try. The movement was slow at first, not a typical break away.

Once off, I found the threads of the cap and neck willed with some whitish gray substance (corrosion?). I used an nail (for the pointed tip) and than a wire brush to clean out the treads and ended up with a considerable amount of whitish powder.

I'll put the neck back on tomorrow as we ran out of daylight to complete that task today. The one last thing I am considering, is making a gasket for the cap that would fit over the end of the neck and be held in place by the cap. I would think that the compression of the gasket would help hold the cap in place when traveling without having to tighten it too much. Also if the cap did become stuck again I would think that a gasket might make it earier to "brake loose" by tapping it with a hammer. What do you think?

Oh, and by the way, when the cap is "tight" on the neck there is not much air space thru the voids in the cap. If filling the tank from the "city" hookup I doubt that the air could escape fast enough to keep the tank (or some other fitting) from bursting. And even if the air could escape fast enough, I'm sure the water couldn't if you didn't turn the water off before the tank was full.

Joe
__________________
66Overlander is offline   Reply With Quote
Old 06-19-2004, 03:50 AM   #19
Rivet Master
 
TomW's Avatar
 
1967 26' Overlander
Huntsville , Alabama
Join Date: Dec 2003
Posts: 2,918
Images: 2
Quote:
Originally Posted by 66Overlander
..The one last thing I am considering, is making a gasket for the cap that would fit over the end of the neck and be held in place by the cap...
Joe,

Be careful with the gasket: You noted the concern about air getting out when you fill the tank, but you also need to be concerned about letting air in when your pump empties the tank.

You may want to investigate some food-safe grease for the threads. This may retard the oxidation that seized your cap. A restaurant supply store might have what you need.

Tom
__________________
TomW is offline   Reply With Quote
Old 06-19-2004, 07:02 AM   #20
Rivet Master
 
66Overlander's Avatar
 
1962 22' Safari
2016 30' Classic
Somewhere , in the USA
Join Date: Mar 2004
Posts: 1,973
Images: 41
Tom,
Good point about letting air in when the pump operates. I certainly don't want to collapse the tank. I'll guess I'll scrap the gasket idea.

Joe
__________________
66Overlander is offline   Reply With Quote
Old 09-30-2004, 05:48 AM   #21
1 Rivet Member
 
Join Date: Aug 2004
Posts: 18
Images: 7
Water fill cap stuck

The filler neck on mine had a hole(5/16ths) in the side of the neck, ( no flats on treads), not sure if factory or PO . I was going to tap the hole, an install a small axle breather cap, (Kinda looks like a mushroom) that will still give me a vent, and keep insects/ trash etc., out. Not sure what to use to lube the treads, but don't they make a "food grade lube" ? Toby
__________________

__________________
Toby 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
lost my water tank cap Swingking Fresh Water Systems 7 01-28-2004 07:10 PM
Argosy water fill problem mcneon Argosy Motorhomes 1 10-09-2003 06:30 AM
water system mystery garymacf Plumbing - Systems & Fixtures 4 06-21-2003 12:50 PM
travelling w/out water system maznblu Fresh Water Systems 6 09-09-2002 01:03 PM


Virginia Campgrounds

Reviews provided by




Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 07:10 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.