Tim Hytrek
1st Class Member
Brakeman
Posts:38
Send Message
 | | 09/10/2008 8:50 PM |
| | My numberplate also unsoldered itself. Daniel Boon e #101 | | | |
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Taperpin
Brakeman
Posts:75
Send Message
| | 09/11/2008 2:56 AM |
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Before I start this post..please be aware that I am NOT bashing Accucraft.. merel;y trying to assist some owners with minor running fixes, ok..
Jason,
Ώ] The 4-4-0 burners can over fire them..to check if this is the case.. open the smokebox door with the engine fired if a lambent
flame is coming out of the smokebox..you may damage the stack and number plate..
ΐ] Look up the flue with the burner going you may see that the flame on the bunrer is "Split" by the steam pipe which runs through the flue , this spoils the combustion process of the burner as its disturbs the flame front formation , this in turn lowers the heat output and to compensate drivers tend to open the gas valve higher..which makes the Flame in the smokebox problem worse..
The Fix: remove the burner, remove the steam pipe whcih runs through the flue..bend the steam pipe so thst it lies parrallel to the burner , but off to the side of the flue.. you want it hard up against the flue wall and clear of the slots in the burner,
reinmstall the steam pipe.. get a piece of 40 or 50 mesh S/Steel gauze and roll up asingle layer tube of the gauze which will insert into the burner tube[ this is best done by rolling it round abrass rod about 3/16" diameter tightly .. slide it into the burner so that it covers the slots all the way to the end ..work it out to sit snugly inside ..
now replace the burner [ checking ther gas jet first.. some have the tiny gas hole the right size but drilled off centre, this will affect the flame /mixture adversely ] if its like this replace it the jet must provide a conical gas steam expanding concentrically inside the burner.not canted of the one side..
Light up and look up from the front end again , you should see a low even . blue flame sitting on the burner all along its lenghtwith the steam pipe clear of the flame completely. if you still have a flame out of the smokebox.. install the smaller jet form Accucraft..it is also worth while putting ceramic sheet for heat barrier inside the smokebox door . to protect the number plate.more | | | |
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David Fletcher
Moderator
Melbourne Australia
Foreman
Posts:132
Send Message
| | 09/11/2008 6:24 AM |
| Chaps, I have a question regarding the 4-4-0 gas pipe or any of the Acc loco with tender gas tanks....what exactly can happen if you're loco derails in part, or loses its tender while running and the hose drops out of the boiler end? The gas is still on...should the tender uncouple for any reason, does this cause a fire ball in the cab, or does the flame simply go out?
David.
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(click here for my web page) | |
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rodblakeman
1st Class Member
UK
Brakeman
Posts:83
Send Message
| | 09/11/2008 7:49 AM |
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David,
As soon as the gas Jet on the end of the flexi pipe comes out of the burner the fire goes out. I have seen it happen a few times on "bumpy" track where the tender coupling pin pops out of the engine link. I fitted little R clips through the pin to prevent this unwanted uncoupling.
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Rod.
SA 475
http://cslr.co.uk/Southdown2005.htm
http://picasaweb.google.com/wpandyr | |
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Larry Green
1st Class Member
Vermont
Foreman
Posts:136
Send Message
| | 09/11/2008 7:49 AM |
| David, Good question! Never thought about that.
Now, who is brave enough to experiment and let the rest of us know????
My numberplate, now reattached with JB Weld, survived yesterday's running, and the ceramic cloth for insulating the smokebox door just arrived from MM_C.
Larry
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Charles
1st Class Member
Conductor
Posts:636
Send Message
| | 09/11/2008 8:37 AM |
| Rod
True but when our K4 hose split the gas was to be sprayed and gas vapors cause a fire in the cab when a alcohol fired engine came by. | |
Happy Trails on the Rails
Offering services to enhance your steam locomotive
Charles
SA #614
http://cebednarik.googlepages.com/home | |
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David Fletcher
Moderator
Melbourne Australia
Foreman
Posts:132
Send Message
| | 09/11/2008 2:58 PM |
| Incidentally, I melted the front number plate off my original black mogul a couple of years back, when I tried to fire the engine and the jet had become blocked with that white sealant gunk, a green flame and much heat in the smokebox. The front plate melted off pretty quickly! I unscrewed the plate mount from the smokebox and soldered the plate back onto it with a regular soldering iron. Never has come off since.
David. | |
(click here for my web page) | |
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jfrank
1st Class Member
Katy, Texas
Foreman
Posts:179
Send Message
| | 09/11/2008 7:04 PM |
| Posted By Taperpin on 09/11/2008 2:56 AM
Before I start this post..please be aware that I am NOT bashing Accucraft.. merel;y trying to assist some owners with minor running fixes, ok..
Jason,
Ώ] The 4-4-0 burners can over fire them..to check if this is the case.. open the smokebox door with the engine fired if a lambent
flame is coming out of the smokebox..you may damage the stack and number plate..
ΐ] Look up the flue with the burner going you may see that the flame on the bunrer is "Split" by the steam pipe which runs through the flue , this spoils the combustion process of the burner as its disturbs the flame front formation , this in turn lowers the heat output and to compensate drivers tend to open the gas valve higher..which makes the Flame in the smokebox problem worse..
The Fix: remove the burner, remove the steam pipe whcih runs through the flue..bend the steam pipe so thst it lies parrallel to the burner , but off to the side of the flue.. you want it hard up against the flue wall and clear of the slots in the burner,
reinmstall the steam pipe.. get a piece of 40 or 50 mesh S/Steel gauze and roll up asingle layer tube of the gauze which will insert into the burner tube[ this is best done by rolling it round abrass rod about 3/16" diameter tightly .. slide it into the burner so that it covers the slots all the way to the end ..work it out to sit snugly inside ..
now replace the burner [ checking ther gas jet first.. some have the tiny gas hole the right size but drilled off centre, this will affect the flame /mixture adversely ] if its like this replace it the jet must provide a conical gas steam expanding concentrically inside the burner.not canted of the one side..
Light up and look up from the front end again , you should see a low even . blue flame sitting on the burner all along its lenghtwith the steam pipe clear of the flame completely. if you still have a flame out of the smokebox.. install the smaller jet form Accucraft..it is also worth while putting ceramic sheet for heat barrier inside the smokebox door . to protect the number plate.more
Thanks for posting this information, this may really help. Let me pass on what else we found here in Houston. My 4-4-0 would not fire correctly with the flame sputtering out or not popping back. Tom Burns has one of these engines also and his works just fine. So we tried swapping jets, burners, replacing the tubing from the gas tank and nothing worked. Even though we found my burner had wider slots than his(why is that?) it really made no difference. When we put my tender on his engine the problem went over there and with his tender on my engine mine now worked perfectly. So........what we think now is the gas tank on my engine as some kind of blockage inside it that is not letting the gas flow out freely. When we take off the hose the gas just sputters out of the tank rather than flowing freely. It could be the control valve, but we unscrewed that and it looks ok. So now when I can reach Cliff I am going to have to ask for a new tank. Interesting and a real puzzler. | |
John Frank
Katy, Texas
Home of the Texas Western Narrow Gauge RR | |
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Kovacjr
1st Class Member
Lakewood NJ
Foreman
Posts:372
Send Message
| | 09/11/2008 7:26 PM |
| John it worked properly before didnt it??? Id say try doing the brakeclean gas tank purge. Hopefully that will clean anything out that may be causing the problem. The hose also can be an issue as they al seem to be really kinked at the nipple.
Thanks Gordon I already insulated the smokebox, its the 1st think I do with every loco. As for the superheater I know its an issue but havnt made a radiant burner for it yet. | |
Jason Kovac
Lakewood, NJ | |
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jfrank
1st Class Member
Katy, Texas
Foreman
Posts:179
Send Message
| | 09/11/2008 8:01 PM |
| Posted By Kovacjr on 09/11/2008 7:26 PM
John it worked properly before didnt it??? Id say try doing the brakeclean gas tank purge. Hopefully that will clean anything out that may be causing the problem. The hose also can be an issue as they al seem to be really kinked at the nipple.
Thanks Gordon I already insulated the smokebox, its the 1st think I do with every loco. As for the superheater I know its an issue but havnt made a radiant burner for it yet.
Actually Jason is has never worked exactly right, but it has gotten much worse now that you mention it so perhaps cleaning will help. We checked the hose for kinks and even replaced it with a non kinkable type that Tom uses. Even with the hose disconnected and the raw gas just coming out of the tank it is sputtering and spitting. It should flow smoothly. | |
John Frank
Katy, Texas
Home of the Texas Western Narrow Gauge RR | |
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