Coleman lantern 335...help!!!

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Adrian
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Coleman lantern 335...help!!!

#1

Post by Adrian »

Hi, perhaps you can help me. If I leave the lantern on the table only air comes out but if i turn it upside down then fuel comes out. What could it be your diagnosis?, Thanks so much in advance. Adrian.
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Leviticus_Tomethreus
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Re: Coleman lantern 335...help!!!

#2

Post by Leviticus_Tomethreus »

F/a tube is screwed up
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Re: Coleman lantern 335...help!!!

#3

Post by Mister_Wilson »

By screwed up he means that the small hole at the bottom end of the f/a tube probably has some crud in it that's blocking the flow of gas while the rod is sticking through it. Try preheating your generator then opening the valve all the way. If it lights and stays lit, you'll need to pull the valve and clean the f/a, in particular that little hole, carefully, don't enlarge it, just clear it.
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Re: Coleman lantern 335...help!!!

#4

Post by Adrian »

Thnak you for the explanation.
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alciuffetelli
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Re: Coleman lantern 335...help!!!

#5

Post by alciuffetelli »

Mister_Wilson wrote: Tue Jan 12, 2021 11:43 pm By screwed up he means that the small hole at the bottom end of the f/a tube probably has some crud in it that's blocking the flow of gas while the rod is sticking through it. Try preheating your generator then opening the valve all the way. If it lights and stays lit, you'll need to pull the valve and clean the f/a, in particular that little hole, carefully, don't enlarge it, just clear it.
I posted earlier today about having problems with a f/a tube in a 335. I've pulled the valve from the fount, but how do you remove the f/a tube from the base of the valve assembly? Usually I see something with "flats" that I could put a wrench on, but this just has a wider, round part at the top. Can't tell if it unscrews or whether it's soldered. Any ideas?
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Re: Coleman lantern 335...help!!!

#6

Post by zoomkat »

"Hi, perhaps you can help me. If I leave the lantern on the table only air comes out but if i turn it upside down then fuel comes out. What could it be your diagnosis?, Thanks so much in advance. Adrian."

What position is the fuel control valve in when this happens? Looking at pictures the lantern appears to be a 1/4 turn open to start lantern.
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Re: Coleman lantern 335...help!!!

#7

Post by Northman49 »

The F/A tube is removeable...I have done it many times, it is threaded into the valve body. But you are correct that there are no flats on the tube end.
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Re: Coleman lantern 335...help!!!

#8

Post by Phredd »

The parts diagram for a 335 shows an octagonal shape at the top of the fuel/air tube (see figure below). Is yours not like this?
335_Page_1.jpg
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Re: Coleman lantern 335...help!!!

#9

Post by Gasman64 »

Where's Donnie? (drkillemquick.) He loves these; his favorite model! :lol: :D ;)
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Re: Coleman lantern 335...help!!!

#10

Post by Majicwrench »

When you open these valves 1/4 turn, you need to wait longer than you think to get fuel up, so they will hissssssss for while before you can light em. Give em a good 30 seconds.

Of the dozens of lantern I have got going, only one (an Ash Flash) needed the f/a tube hole cleaned.
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Re: Coleman lantern 335...help!!!

#11

Post by Newfie »

The FA tube unscrews. You can put a set of pliers on the wider round part at the top and unscrew it. It might take a bit of effort to get it loose.

You can try using a set of pliers with non-marring teeth if you don't want tool marks. Personally I could care less about tool marks in that spot because they'll be hidden inside the fount when the valve is reassembled.

Thread sealer is not required on the FA tube when you reinstall. I like to stretch the FA tube spring a little bit before I put it back in. I do use blue thread sealer on the valve assembly threads that meet the fount.

alciuffetelli wrote: Tue Jan 12, 2021 11:56 pm
Mister_Wilson wrote: Tue Jan 12, 2021 11:43 pm By screwed up he means that the small hole at the bottom end of the f/a tube probably has some crud in it that's blocking the flow of gas while the rod is sticking through it. Try preheating your generator then opening the valve all the way. If it lights and stays lit, you'll need to pull the valve and clean the f/a, in particular that little hole, carefully, don't enlarge it, just clear it.
I posted earlier today about having problems with a f/a tube in a 335. I've pulled the valve from the fount, but how do you remove the f/a tube from the base of the valve assembly? Usually I see something with "flats" that I could put a wrench on, but this just has a wider, round part at the top. Can't tell if it unscrews or whether it's soldered. Any ideas?
Shane Looking for the following Canadian birthday lanterns or lamps: 2-32, 6-34,
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Re: Coleman lantern 335...help!!!

#12

Post by bdickson »

Heat the genny, turn the fuel know on several turns, wait and apply flame. Generally not a big fuel ball. You have to wait until you hear the snake spit.
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Re: Coleman lantern 335...help!!!

#13

Post by alciuffetelli »

Phredd wrote: Wed Jan 13, 2021 12:51 am The parts diagram for a 335 shows an octagonal shape at the top of the fuel/air tube (see figure below). Is yours not like this?

335_Page_1.jpg
No...it's round, no flats at all. These brass parts are so delicate I didn't want to destroy it.
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Re: Coleman lantern 335...help!!!

#14

Post by zoomkat »

"These brass parts are so delicate I didn't want to destroy it."

You should be able to trouble shoot any issues without taking it apart.
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