Search found 1339 matches

by MYN927
Fri Jan 13, 2023 2:34 pm
Forum: Technical Assistance
Topic: Has anyone seen this before?
Replies: 13
Views: 461

Re: Has anyone seen this before?

The black coating on the pump cap isn't oxidation from aging. The pump knob might have had a similar coating in the past too. It does not look like black paint either. Not sure if the black on burner plate is simply paint or something else. There are a number of ways, mostly by chemical treatments, ...
by MYN927
Wed Jan 11, 2023 1:42 pm
Forum: Technical Assistance
Topic: caswells use
Replies: 10
Views: 269

Re: caswells use

If you are using the Caswells to seal and prevent the internals from future rusting, that would be a great choice. I agree that it serves pretty decently as reinforcement for a seemingly thin-walled fount. However, I would not recommend using it as a primary repair means for a leaky or severely comp...
by MYN927
Mon Jan 09, 2023 6:25 am
Forum: Technical Assistance
Topic: Rust on 220E Exterior Suggestions for Treatment
Replies: 5
Views: 189

Re: Rust on 220E Exterior Suggestions for Treatment

I'd check out how are things on the fount's inside first to determine if its worthwhile. I suggest more priorities being placed on the intergrity of the fount rather than surface aesthetics at this point. It does look ok on the outside. Surface rust can be removed as suggested. Some touchup paint wo...
by MYN927
Mon Jan 09, 2023 5:35 am
Forum: Technical Assistance
Topic: Trashed Fuel and Air Tube, Brass Mesh from Generator Tip
Replies: 12
Views: 263

Re: Trashed Fuel and Air Tube, Brass Mesh from Generator Tip

In an extreme, you can still solder up the fuel-air tube and convert it into a straight pick up for kero. Restoring that back to the original form would either take too much effort or even next to impossible. The mesh isn't such a neccessary piece nowadays. You'll risk damaging the cleaning needle w...
by MYN927
Mon Jan 09, 2023 4:58 am
Forum: Technical Assistance
Topic: Secret to cleaning fuel jets?
Replies: 37
Views: 658

Re: Secret to cleaning fuel jets?

Thanks everyone for their insight however it appears that I should have just asked something more decisive like “what motor oil is best?”. 😂 I’ll figure it out on my own from here however I’ve had several fettled lanterns that went through a complete cleaning and didn’t burn well. A quick swap with...
by MYN927
Mon Jan 09, 2023 4:47 am
Forum: Technical Assistance
Topic: Crown vs. Coleman fuel
Replies: 231
Views: 6527

Re: Crown vs. Coleman fuel

The ease with which you can ignite a pool of fuel with a match or some other sources depends very much on the flash point temperature of the fuel, not so much on the boiling points. Both Coleman Fuel and the Crown Campfuel(specified on the 2019 msds) have similar flash points(-18°C or -0.4°F). You s...
by MYN927
Mon Jan 09, 2023 2:20 am
Forum: Technical Assistance
Topic: Crown vs. Coleman fuel
Replies: 231
Views: 6527

Re: Crown vs. Coleman fuel

"So, are you thinking that for us cold-temp users of Crown fuel, that is...in the 10F range, startup may be more difficult?" In my opinion, there is quite a difference between the Initial Boiling Point of the test result for Coleman Fuel and what is stated in the specs. In the test, it was 74.3°C(cl...
by MYN927
Sun Jan 08, 2023 2:28 pm
Forum: Technical Assistance
Topic: Crown vs. Coleman fuel
Replies: 231
Views: 6527

Re: Crown vs. Coleman fuel

I notice that the distillation and boiling point ranges of both fuels obtained from the lab results differ by quite a large margin from whatever stated in the msds/specs. That's probably one of the reasons why they always have disclaimers at the end of it. :D If Crown should have a higher energy con...
by MYN927
Sun Jan 08, 2023 12:47 pm
Forum: Technical Assistance
Topic: Crown vs. Coleman fuel
Replies: 231
Views: 6527

Re: Crown vs. Coleman fuel

That does indicate that Crown has an overall higher boiling point range. It has a higher specific gravity. It is very likely to have a higher energy content too. Any chance of getting their Octane ratings? Since the composition of Crown Campfuel has been changed at least twice since 2010, is there a...
by MYN927
Sun Jan 08, 2023 7:03 am
Forum: Technical Assistance
Topic: Secret to cleaning fuel jets?
Replies: 37
Views: 658

Re: Secret to cleaning fuel jets?

As mentioned, the fuel + air discharge would be rather sporadic if the valve's opening is at around 1/4-turn of the knob. That's the startup position. The fuel discharge stream would only become straight after the valve is opened beyond the startup position. Is it still 'sporadic' and uneven when yo...
by MYN927
Sat Jan 07, 2023 1:27 pm
Forum: Just Bull
Topic: Chinese mantles
Replies: 27
Views: 411

Re: Chinese mantles

Do these mantles burn brighter than coleman or peerless. How do they compare to peerless. And do they burn brighter with coleman fuel or crown? :lol: :lol: Crown might even win on this one. It has a higher Specific Gravity of 0.715. Coleman Fuel has an SG of 0.69. For such fuels, a higher SG usuall...
by MYN927
Sat Jan 07, 2023 12:10 pm
Forum: Technical Assistance
Topic: First time issue with 200A
Replies: 16
Views: 320

Re: First time issue with 200A

Running really loud and getting dim sounds to me like the flame went up into the burner tube. Double check that screen to ensure it's intact with no rips or holes. If the flame went up into the burner tube, you should know very quickly when the burner tube and cap begin glowing red (read: This is b...
by MYN927
Sat Jan 07, 2023 8:28 am
Forum: Just Bull
Topic: this was hacky even for me
Replies: 21
Views: 595

Re: this was hacky even for me

Combination of the aluminum foil wrap and glass fiber wick should work well enough.
by MYN927
Sat Jan 07, 2023 8:11 am
Forum: Technical Assistance
Topic: Secret to cleaning fuel jets?
Replies: 37
Views: 658

Re: Secret to cleaning fuel jets?

What problem/issue are you having with your "fuel jets" that you think they need to be cleaner? Low pressure and irregular spray pattern basically. Is the lantern's cleaning needle getting through the gas tip orifice in the first place? There shouldn't too much of a real problem if it is. Low press...
by MYN927
Sat Jan 07, 2023 4:10 am
Forum: Technical Assistance
Topic: Buna-N Sheet Info Needed
Replies: 44
Views: 1096

Re: Buna-N Sheet Info Needed

Well after a couple days I pulled the soaking pips for a comparison... Pump gas definitely has an effect.. I was going to get some measurements, but I think a visual tells all. This is 60 durometer Buna-N. 1/8 on the left and 1/16" on the right https://i.postimg.cc/kGDSvjnc/PXL-20230106-210640703-2...
by MYN927
Fri Jan 06, 2023 8:26 am
Forum: Just Bull
Topic: in a pinch fuel
Replies: 41
Views: 672

Re: in a pinch fuel

zoomkat wrote: Fri Jan 06, 2023 8:14 am "Contrary to CF, Aspen 4's octane rating would be pretty high."

Nobody wants their lantern rattling like box of rocks.
:D This might just be about the only kind of modern-day gasoline that is both great for small engines and GPAs.
by MYN927
Fri Jan 06, 2023 8:17 am
Forum: Technical Assistance
Topic: Secret to cleaning fuel jets?
Replies: 37
Views: 658

Re: Secret to cleaning fuel jets?

How did you heat them? Usually, a few cycles of heating them to dull red and quenching would get it clean. This works by both burning some of the carbon off as well as thermal shocks for loosening up the bulk of it. Carb cleaners only work well on varnishes, oils and old fuel residues. They aren't w...
by MYN927
Fri Jan 06, 2023 7:30 am
Forum: Technical Assistance
Topic: Molasses, does it really work?
Replies: 9
Views: 300

Re: Molasses, does it really work?

Happy New Year all. Picked up a rusty 200A from 10/58 for my first score of 2023. It has a good bit of rust on the inside and outside of the fount. I'm going to leave the patina as found but am a little concerned about the rust inside. Ive never tried it but would Molasses be a good choice? Or shou...
by MYN927
Fri Jan 06, 2023 7:07 am
Forum: Just Bull
Topic: in a pinch fuel
Replies: 41
Views: 672

Re: in a pinch fuel

Whatever you'd be getting as Regular Unleaded Gasoline(RUG) can vary greatly. Exact compositions change all the time, with or without ethanol. If you were to check out the weightages of the different group of compounds in RUG, you'd soon realize that most of what we have been classifying as additiv...
by MYN927
Thu Jan 05, 2023 3:16 pm
Forum: Just Bull
Topic: in a pinch fuel
Replies: 41
Views: 672

Re: in a pinch fuel

Whatever you'd be getting as Regular Unleaded Gasoline(RUG) can vary greatly. Exact compositions change all the time, with or without ethanol. If you were to check out the weightages of the different group of compounds in RUG, you'd soon realize that most of what we have been classifying as additive...
by MYN927
Thu Jan 05, 2023 6:17 am
Forum: Technical Assistance
Topic: Generator question?
Replies: 22
Views: 612

Re: Generator question?

While not for answering the OP's original question, I'd like to add on something about the function of the 'cardboard' tube in generators. There had been some discussions in the past about this. Here's what I understand: It was meant to serve similarly to the fibrous packing in reducing pulsations d...
by MYN927
Wed Jan 04, 2023 2:24 am
Forum: Technical Assistance
Topic: Buna-N Sheet Info Needed
Replies: 44
Views: 1096

Re: Buna-N Sheet Info Needed

From what I know, the most damaging stuffs in the gasoline to the Buna-N would be the aromatics - toluenes, xylenes, ethylbenzene and numerous such derivatives. Next would be the alkyl-tertiary-alkyl ethers like ETBE, TAME, and also in my location, MTBE is still present. Alcohols like ethanol and me...
by MYN927
Wed Jan 04, 2023 12:53 am
Forum: Technical Assistance
Topic: Buna-N Sheet Info Needed
Replies: 44
Views: 1096

Re: Buna-N Sheet Info Needed

It can take up to a week or more to see anything significant. At least, that's what I was getting over here. It depends on what's in the gasoline that you're having, Toby. In more elaborate and affirmative tests like the one I posted in the link, it was like 500 hours. If its real Buna-N, the newer ...
by MYN927
Tue Jan 03, 2023 3:14 pm
Forum: Technical Assistance
Topic: Testing "A" fount?
Replies: 35
Views: 858

Re: Testing "A" fount?

I would clean it out to the max before pressurizing tests. You need hot, concentrated lye as preliminary cleaning before attacking the rust with citric acid. This ensures that the acid don't need to work through any oily or old fuel varnishes before getting to the rust. Finish off down to bare metal...
by MYN927
Tue Jan 03, 2023 7:59 am
Forum: Technical Assistance
Topic: Best mantles
Replies: 24
Views: 603

Re: Best mantles

The only Coleman #21A mantles available in my location are still the older green bags. They haven't re-stock the shelves with the newer red sleeves. I'd sure like try those. The most inexpensive are still those no-name, 'Made in China' ones. I've got some of those. Some are actually pretty good: bri...
by MYN927
Tue Jan 03, 2023 7:30 am
Forum: Technical Assistance
Topic: Work surface suggestions needed
Replies: 14
Views: 332

Re: Work surface suggestions needed

I'm using plywood board and a shallow, solvent-resistant PP or HDPE plastic pan. They are strong, cheap enough and won't cause additional scratches.
They are only meant to be working surfaces and not anywhere appealing in apperance.
by MYN927
Tue Jan 03, 2023 6:24 am
Forum: Technical Assistance
Topic: Crown vs. Coleman fuel
Replies: 231
Views: 6527

Re: Crown vs. Coleman fuel

Coleman Fuel contains cyclohexane; cas no.110-82-7. Crown Campfuel 2019 contains cyclohexene; cas no.110-83-8. Neither of them would pose any serious health hazards to warrant concerns unless you exceed the permissible exposure limits stated. The 'new' differences that we might be interested to take...
by MYN927
Tue Jan 03, 2023 5:19 am
Forum: Technical Assistance
Topic: Crown vs. Coleman fuel
Replies: 231
Views: 6527

Re: Crown vs. Coleman fuel

"Cyclohexene (as opposed to cyclohexane)" If that's the difference you need to understand the use of SDS by US businesses. Would you treat exposure differently? Do you think SDS writers are high level chem engineers? Heck somebody could ran that through a spell check could have changed that. It isn...
by MYN927
Tue Jan 03, 2023 5:15 am
Forum: Technical Assistance
Topic: Buna-N Sheet Info Needed
Replies: 44
Views: 1096

Re: Buna-N Sheet Info Needed

Yes, even Viton would also swell a little if immersed long enough in the fuel. Just that its near-negligible to be of concern. For info, there might be some cheap rubbers available out there being labelled as 'Buna-N' or nitrile/NBR. I've got some experience getting a piece that I doubt is real Buna...
by MYN927
Tue Jan 03, 2023 2:38 am
Forum: Technical Assistance
Topic: Crown vs. Coleman fuel
Replies: 231
Views: 6527

Re: Crown vs. Coleman fuel

After going through the 2019 Crown MSDS and comparing the boiling points with CF, I find no appreciable difference in terms of boiling points. Any startup issues or odors arising from Crown's relatively higher initial boiling points could just indicate that you might be using batches that was produc...
by MYN927
Mon Jan 02, 2023 6:45 am
Forum: Technical Assistance
Topic: Crown vs. Coleman fuel
Replies: 231
Views: 6527

Re: Crown vs. Coleman fuel

"There's something I do notice about the marked difference in the initial boiling points(IBP) between CF and Crown. Coleman Fuel IBP: 100°F - 135°F Crown Campfuel IBP: ~193°F" That seems to be a significant difference, where did you get that data? From this: Coleman Stove Fuel Specs.pdf The Crown s...
by MYN927
Mon Jan 02, 2023 5:40 am
Forum: Technical Assistance
Topic: Buna-N Sheet Info Needed
Replies: 44
Views: 1096

Re: Buna-N Sheet Info Needed

Happy New Year, Dean. Your instinctive speculations certainly have some truths in it. There had been some studies and experiments being carried out in pretty good detail on the effects of ethanolated gasolines on various rubbers and plastics. From my own experience on Neoprene and Buna-N(nitrile or ...
by MYN927
Sun Jan 01, 2023 3:56 pm
Forum: Technical Assistance
Topic: Buna-N Sheet Info Needed
Replies: 44
Views: 1096

Re: Buna-N Sheet Info Needed

I believe there must be some valid reasons why Coleman switched over to using fluorosilicone. Despite all the cost-cutting measures being prevalent in the course of modern Coleman production, the use of expensive fluorosilicone certainly isn't one of those. Besides having some advantages for use in ...
by MYN927
Sun Jan 01, 2023 9:38 am
Forum: Technical Assistance
Topic: Crown vs. Coleman fuel
Replies: 231
Views: 6527

Re: Crown vs. Coleman fuel

It seems to me that you might have a particularly high sensitivity to fuel odors, Dashwood. What if you're using regular kerosene instead of the highly refined Klean Heat? Looks like the odor issue might be more apparent for you during startups and shutdowns. It isn't that surprising if we compare a...
by MYN927
Sun Jan 01, 2023 5:05 am
Forum: Just Bull
Topic: It Cleans Your Toilet and....
Replies: 28
Views: 610

Re: It Cleans Your Toilet and....

If you intend to get Lime-A-Way, you might want check out the various products with similar names:-
https://colemancollectorsforum.com/view ... ay#p469201
by MYN927
Sun Jan 01, 2023 4:52 am
Forum: Technical Assistance
Topic: Crown vs. Coleman fuel
Replies: 231
Views: 6527

Re: Crown vs. Coleman fuel

2 new cans going to take them to our lab on my nights back to work they are going to run a full spectrum on both so not sure what it will tell us but more than we know now. First test opened them and smelled them no distinguishing difference even from my wife’s sensitive nose. It stinks bad when I ...
by MYN927
Sat Dec 31, 2022 4:42 pm
Forum: Just Bull
Topic: It Cleans Your Toilet and....
Replies: 28
Views: 610

Re: It Cleans Your Toilet and....

Most toilet bowl cleaners(including Lysol, Clorox and Lime-A-Way) contain muriatic(hydrochloric) acid as the active ingredient. They'll remove the tarnish on nickel. Don't leave it on for too long or it'll remove some nickel as well. You need to neutralize it after the job is done. Usually, brake fl...
by MYN927
Sat Dec 31, 2022 3:41 pm
Forum: Technical Assistance
Topic: Buna-N Sheet Info Needed
Replies: 44
Views: 1096

Re: Buna-N Sheet Info Needed

Buna-N sheets are commonly available in the 55-65 Shore A hardness. These are suitable for pips. For Viton, anything lower than 70 Shore A is not very common. In my location, the most common is 75. They are too hard for most pips. It'd be great if you have a source for Viton that's around 50-65 Shor...
by MYN927
Sat Dec 31, 2022 5:26 am
Forum: Technical Assistance
Topic: Best mantles
Replies: 24
Views: 603

Re: Best mantles

In my opinion, the best mantles for practical use would be those that you can easily buy from your local stores. Not something which you need to place a mail order and wait it to arrive from some far-away regions of the World. Something that is inexpensive enough that you won't cringe too much in ru...
by MYN927
Wed Dec 28, 2022 8:45 am
Forum: Technical Assistance
Topic: Silk Lites! Course or Fine?
Replies: 33
Views: 767

Re: Silk Lites! Course or Fine?

Silk Lites? They're no longer made. It has been for some decades now since they churned out the last batch. I bet, for those having any of these 'Best of the best' from Coleman, would be saving them indefinitely. Too dear to use, that is. In practical sense, they're not likely to be your day-to-day ...
by MYN927
Tue Dec 27, 2022 10:59 am
Forum: Just Bull
Topic: Is this pot too big for my 500A? Coleman at work in the brewery
Replies: 10
Views: 391

Re: Is this pot too big for my 500A? Coleman at work in the brewery

Is that even allowed in the Brewery?
Well, err...as long as you say it is :D .
by MYN927
Tue Dec 27, 2022 10:31 am
Forum: Technical Assistance
Topic: Crown vs. Coleman fuel
Replies: 231
Views: 6527

Re: Crown vs. Coleman fuel

One thing we need to realise is, it isn't too advisable to rely on any particular brand of fuel. Anything can happen down the road. Nothing is certain. What if Coleman decides to discontinue the production of CF. You just need to have alternatives. With a large percentage of users switching to Crown...
by MYN927
Tue Dec 27, 2022 5:55 am
Forum: Technical Assistance
Topic: The correct way to operate a Perfection heater?
Replies: 24
Views: 630

Re: The correct way to operate a Perfection heater?

In my opinion, a Perfection heater isn't a great option to be used in a closed tent. Same goes to any GPA, wickies and catalytic heaters, whatever the brands, regardless of whether they're running at full throttle or half. The reasons have been stated earlier by many:- most apparently, the CO / CO2 ...
by MYN927
Mon Dec 26, 2022 3:02 am
Forum: Just Bull
Topic: ceramic burner caps
Replies: 10
Views: 284

Re: ceramic burner caps

If you don't accidentally crush or break them during handling or maintenance, they'd last much longer than the standard metal-mesh burners. You won't get burnt-out metal screens, especially when used on a frequently running, high-output lantern like a 237.
by MYN927
Sun Dec 25, 2022 7:35 am
Forum: Technical Assistance
Topic: Crown vs. Coleman fuel
Replies: 231
Views: 6527

Re: Crown vs. Coleman fuel

Several years ago when me and my my dad were restoring a couple old trucks and parting a few out, I bought a parts washer at harbor freight. A mechanic friend of mine told me that naphtha was the best fluid to use in the washer, and that that is what he used to clean extremely greasy parts. I wonde...
by MYN927
Sun Dec 25, 2022 3:32 am
Forum: Technical Assistance
Topic: Crown vs. Coleman fuel
Replies: 231
Views: 6527

Re: Crown vs. Coleman fuel

I'm in the thinking that, we might just be interested to know about what are not already indicated or stated in the MSDSs. Although Octane ratings aren't really relevant at all in GPAs, I still find many guys asking about the kind of pump-gasolines best suited for this purpose. As many would know, t...
by MYN927
Sat Dec 24, 2022 1:26 pm
Forum: Technical Assistance
Topic: Crown vs. Coleman fuel
Replies: 231
Views: 6527

Re: Crown vs. Coleman fuel

There is one test that we might just be a little curious about...
How about putting in both CF and Crown to determine their respective Octane Ratings?
Does anyone have access to any equipment that can reveal those familiar numbers?
by MYN927
Thu Dec 22, 2022 3:42 pm
Forum: Technical Assistance
Topic: Crown vs. Coleman fuel
Replies: 231
Views: 6527

Re: Crown vs. Coleman fuel

Neither Coleman Fuel nor Crown campfuel were originally used in the older lamps, lanterns and stoves(say, those in the first half of the 20th century). If we trace back a little, maybe the fuel they actually used was something called ' drip gas ', sometimes also called white gas. Or was it straight-...
by MYN927
Thu Dec 22, 2022 4:17 am
Forum: Technical Assistance
Topic: Crown vs. Coleman fuel
Replies: 231
Views: 6527

Re: Crown vs. Coleman fuel

What I can say is, the MSDSs tell all about what are the basic differences between Coleman Fuel and Crown Fuel. The fact is, they don't have anything in common. Not even in the main bulk of the products. In CF, it is predominantly a light hydrotreated distillate with the cas no.68410-97-9. It isn't ...
by MYN927
Wed Dec 21, 2022 3:00 am
Forum: Just Bull
Topic: Can somebody please explain this black magic?
Replies: 17
Views: 519

Re: Can somebody please explain this black magic?

"I have a bottle of MAP gas lying around and wonder if I can connect it to a propane lantern." You certainly can. I have made some modifications with both MAPP and LPG on a kero lantern in the past. With MAPP, it did burn a little whiter than kero. Less so with LPG. Don't get me wrong,...whiter mea...

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