fuel drip out of 285 valve knob

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M114171
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fuel drip out of 285 valve knob

#1

Post by M114171 »

The valve assemblies for model 285 lanterns are not serviceable, correct? No replaceable packing to stop my delightful fuel leak?

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Matt
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Kgam1020
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Re: fuel drip out of 285 valve knob

#2

Post by Kgam1020 »

I would think the valve is serviceable.. There has to be O-rings or packing behind the packing nut. I haven't taken one apart. I did stop a small fuel leak at the packing nut on my 3/86 290 by tightening the nut a little bit..
Ken.
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M114171
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Re: fuel drip out of 285 valve knob

#3

Post by M114171 »

I tried snugging the nut and the leak got a tiny bit worse. No harm in taking it apart right? As is I don't dare use the lantern anyway.
Matt
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Chucker
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Re: fuel drip out of 285 valve knob

#4

Post by Chucker »

Right. Pull it apart slowly and inspect.
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Re: fuel drip out of 285 valve knob

#5

Post by A Seabee »

Dan

looking for 1/61, any Coleman lantern
Found 10/95 birthday lantern!
M114171
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Re: fuel drip out of 285 valve knob

#6

Post by M114171 »

Interesting, there was none available a day or three ago. I feel a little silly futzing over lanterns that are easily replaced with brand new but my pair of circa 1990 model 285's were bought by my grandfather when I aged into going on night fishing trips. Pepe's a pleasant memory now so his outdoors equipment that came to me are pretty important. His other 285 needs constant pumping to keep going, that's probably the infamous O ring between the fuel/air tube and the valve body, correct?
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Re: fuel drip out of 285 valve knob

#7

Post by A Seabee »

" His other 285 needs constant pumping to keep going, that's probably the infamous O ring between the fuel/air tube and the valve body, correct?"

could just be a cap seal. they look ok, but are hard as a rock. I don't think you'd lose pressure from that o ring

nothing silly about it at all, I wish any of my lanterns were family pieces.
Last edited by A Seabee on Tue Jun 28, 2022 2:36 am, edited 1 time in total.
Dan

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Found 10/95 birthday lantern!
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Re: fuel drip out of 285 valve knob

#8

Post by zoomkat »

"that's probably the infamous O ring between the fuel/air tube and the valve body, correct?"

Or maybe the fuel cap gasket.
M114171
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Re: fuel drip out of 285 valve knob

#9

Post by M114171 »

A new fuel cap was the first thing I tried when the safe 285 started needing constant pumping. I know how to test the check valve now, that will be my next move.

I am indeed fortunate to have three family lanterns. My pair of 285's from Mom's stepfather and a 1966 200A from Dad's.
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Re: fuel drip out of 285 valve knob

#10

Post by gootsch »

My 285 has a graphite seal/packing inside the packing nut.
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Re: fuel drip out of 285 valve knob

#11

Post by M114171 »

That being the case I'll have another try at tightening the packing nut.

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Matt
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JimL
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Re: fuel drip out of 285 valve knob

#12

Post by JimL »

I'd back off on the but to see what's behind it first. If it's an O-ring and you continue to tighten, it may leak even worse. O-rings aren't meant to be cranked down. If graphite, get some graphite ribbon and add a little.
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Re: fuel drip out of 285 valve knob

#13

Post by gootsch »

I live in Maine, I was in Texas on a long camping trip when the packing nut on my 285 started to leak. I tried snugging the packing nut to no avail. I removed the packing nut and carefully removed and saved all the graphite packing. I then put the shaft back through the packing nut and packed all the little pieces of graphite packing around the shaft. I put the shaft and packing nut back onto the valve body and snugged the packing nut, I pumped up the lantern and snugged the nut until the leaking stopped. That was in 2012, the lantern is my go to lantern and it works just fine to this day. YMMV
Gootsch
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Re: fuel drip out of 285 valve knob

#14

Post by M114171 »

I should mow the lawn after work but am much more interested in investigating this.
Matt
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Re: fuel drip out of 285 valve knob

#15

Post by M114171 »

Happy Independence Day to all my fellow USA lantern lunatics. Definitely a packing in there, as opposed to one or more O rings. Has anybody ever measured how much torque should be used to squish the packing down properly? How much torque can I apply without damaging anything? I have a good torque wrench but no experience with these packings and it feels like the packing nut is real tight already. I'd much prefer not to break this valve, should I just replace the packing?

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Matt
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Re: fuel drip out of 285 valve knob

#16

Post by zoomkat »

"I have a good torque wrench but no experience with these packings and it feels like the packing nut is real tight already. I'd much prefer not to break this valve, should I just replace the packing?"

The below pdf file shows the valve assembly with the packing setup (44, 45, 46, 47). You could replace the packing, or maybe better, just add a little more packing to the existing packing. I'd probably would first just add a little piece of wire around the valve shaft between the packing nut (44) and the packing washer (45) so when the packing nut is "snugged" up, it will compress the existing packing a little more to stop the leak.

https://patentimages.storage.googleapis ... 522582.pdf
M114171
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Re: fuel drip out of 285 valve knob

#17

Post by M114171 »

Worth a try, I'll give it a whirl. Thank you.
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Re: fuel drip out of 285 valve knob

#18

Post by outlawmws »

Or you can get some graphite ribbon as others have mentioned and do it properly.
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M114171
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Re: fuel drip out of 285 valve knob

#19

Post by M114171 »

Haven't added anything yet but have made a new observation. The knob doesn't turn smoothly, it almost feels like there are detents at a few spots.
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Re: fuel drip out of 285 valve knob

#20

Post by Kgam1020 »

The valve stem should turn pretty smooth. I have two 285 lanterns and there is no detent is current spots. Did you pull the valve stem out?
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Re: fuel drip out of 285 valve knob

#21

Post by JimL »

Possibly the pricker rod in the generator is binding. You can easily tell if it's smooth when you remove the generator.
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