200A and 202 reproduction
frames back
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Lantern Junkie
Hiya everyone ..
Could someone please direct me to where I can get a Schrader valve for a Thermos lantern . I have one that just can't get to stop leaking ..I'm really thinking it's the famous 4th o-ring and im just going to play it safe and put a Schrader on the pump cap . I did read some threads where people had luck with this safer alternative but I can't find one .I tried a few local parts stores but none of them have a valve that's fuel resistant .
Thanks very much for your help !
Ernie
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Eel
If you can send me your cap I'll Schrader it.  PM me.

EEL Eclectic Lanterns, div.  Doofenshmirtz-EEL Incorporated.

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Lantern Junkie
Sending pm
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Majicwrench
The parts stores are correct, the basic shrader is not fuel resistant. That said, not sure if anybody has had a problem with em yet.

Keith
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JimL
Auto parts stores should have A/C O-ring kits that include spare Schraders. I would think these are fuel resistant since they have to be oil resistant for the compressor oil. I don't know if color means anything, but the included O-rings are green, except for the large ones with the metal outer band that go to the compressor itself. That being said, to Keith's point, the Schrader won't be sitting in fuel. It'll be exposed to fumes, but not the fuel itself.

-Jim

Flammable liquids, open flame, what could go wrong?


I've missed you!  But I'm reloading.
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Eel
JimL wrote:
...the Schrader won't be sitting in fuel. It'll be exposed to fumes, but not the fuel itself.


Thermos.  By maldesign, it's closer to fuel than most...

EEL Eclectic Lanterns, div.  Doofenshmirtz-EEL Incorporated.

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JimL

Eel wrote:


Thermos.  By maldesign, it's closer to fuel than most...

The original, but not when you add a Schrader to the cap.

Here's a setup I have for a Thermos, but I haven't had the opportunity to really try it yet. The Thermos I was working on leaks at the seam.  [frown]



Thermos.jpg 


-Jim

Flammable liquids, open flame, what could go wrong?


I've missed you!  But I'm reloading.
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Lantern Junkie
The part that worries me is that if the o-ring on the poppet is leaking or the o-ring in between there and the tube itself (the 4th o-ring) is leaking then the tube WOULD be filled with fuel ..so the Schrader would be exposed to direct fuel contact so if that's not fuel resistant it could be just as dangerous as the original design .
Thanks.. Ernie
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boneweed
On a Hawthorne stove that I couldn't get to pump up I just jammed a bicycle valve stem cut from a tube into a reamed out pump cap with a o ring. The valve stem includes a dime sized portion of the tube. I plan to do the same with some torches.
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mnhogrider
This:
If you're worried about the valve core being fuel resistant you can replace it with whatever you feel safe with.
I've been using whatever core came in the fitting.
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Steve
ICCC Member #1396 
BernzOmatic Appreciation Club #017
Mack, Cat and Cadillac.
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Tigerfans2
Lantern Junkie wrote:
The part that worries me is that if the o-ring on the poppet is leaking or the o-ring in between there and the tube itself (the 4th o-ring) is leaking then the tube WOULD be filled with fuel ..so the Schrader would be exposed to direct fuel contact so if that's not fuel resistant it could be just as dangerous as the original design .
Thanks.. Ernie



with this set up you're only using the cap and a pressure attachment (schrader) , similar to the caps on the quicklights, the leaking o rings in the pump will be leaking in your junk box
Coleman Slant Saver #58
Coleman Quick Lite Crew #8
Coleman Blues 243's #16
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JimL
Lantern Junkie wrote:
The part that worries me is that if the o-ring on the poppet is leaking or the o-ring in between there and the tube itself (the 4th o-ring) is leaking then the tube WOULD be filled with fuel ..so the Schrader would be exposed to direct fuel contact so if that's not fuel resistant it could be just as dangerous as the original design . Thanks.. Ernie


Ernie,

The Schrader in the cap replaces the entire pump.  When using this, there is no longer a pump tube with the poppet O-ring.

-Jim

Flammable liquids, open flame, what could go wrong?


I've missed you!  But I'm reloading.
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Eel
mnhogrider wrote:
This: If you're worried about the valve core being fuel resistant you can replace it with whatever you feel safe with. I've been using whatever core came in the fitting.


I also use Milton #684 on my caps and adapters.

EEL Eclectic Lanterns, div.  Doofenshmirtz-EEL Incorporated.

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shaune509
replace the core in the milton unit with a core for fuel injection test ports, any auto parts will have them behind the counter the ones in front of the counter are for tire use and not the same seat material.
Shaune509
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Lantern Junkie
I just assumed that the pump tube would be left in..
Has anyone ever successfully replaced the 4th o-ring in the pump tube ?
Thanks everyone for the helpful info !
Dave was kind enough to set me up with a Schrader ..thanks Dave ! 😉
Ernie
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JimL
>>Has anyone ever successfully replaced the 4th o-ring in the pump tube ?

Yes, but most don't bother, myself included.  Some check to see if it's leaking though.  Although it can fail, I don't believe it's a common failure point like the poppet o-ring.

The Schrader and pump use are mutually exclusive.  If the cap is bored out for the Schrader, the pump shaft would be sloppy if you wanted to go back to using the pump.  To go back to the pump, you would want to solder a washer on the  back side  of the cap so the  pump shaft isn't flopping around.  If getting a Schrader, I'd commit to that and skip thoughts of repairing the pump. 

-Jim

Flammable liquids, open flame, what could go wrong?


I've missed you!  But I'm reloading.
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Rhubarb
One of our members fixed his pump with a NV from a European stove.

http://www.colemancollectorsforum.com/post/euro-nrv-for-thermos-pump-9286224
[SMALL-RISING-SUN-RHUBARB]  - Andy
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