G Scale Model Train Forum banner

1 - 20 of 30 Posts

·
Premium Member
Joined
·
161 Posts
Discussion Starter #1
Well, I started a post on this while the old board was up again, so this first post will just be to bring it back up to speed.

I've decided to convert an Accucraft Mogul to coal firing.  If that wasn't enough I've given myself a deadline of next saturday!  I've made some decent progress so far and expect to get a lot accomplished this weekend.  To help and learn some tricks Jeff Redeker will be making the trek North tomorrow.

Tuesday Feb 5th:


Wednesday Feb 6th





 

·
Premium Member
Joined
·
161 Posts
Discussion Starter #2
As of tonight all of the needed parts have arrived.  The boiler just needs two more parts shaped, a few holes drilled and then its ready for final assembly.  The tender has been dis-assembled and the plumbing has been planned.  Will be picking up a disguising part for that tomorrow morning.  My only real concern is getting the axple pump finished and working.  Please excuse any dark/blurry pictures, been a long day...

Friday Feb 8th:
The Firebox ready to go into the shell


The Barrel and Firebox Shell mocked up with the running boards, cab, water glass and turret


More of the same, this time a driver's eye view
 

·
Premium Member
Joined
·
684 Posts
Justin,

Looks real good. Hey, I recognize that manifold! Looking forward to seeing it next weekend, need some coal?
 

·
Premium Member
Joined
·
3,378 Posts
Justin's coal fired express.  The next step is a Aster standard gauge engine, let me know when you are willing to expand your work.
 

·
Premium Member
Joined
·
161 Posts
Discussion Starter #6
Thanks for the positive comments guys. I was trying to use a new (to me) style for staying the crownsheet and suffice it to say it didn't work so I'll have to start the boiler over. Not a huge setback as I hadn't soldered the whole thing together yet but dissapointing. I'll go into more detail once I get some shuteye. Tomorrow will hopefully be axlepump and plumbing.
 

·
Premium Member
Joined
·
161 Posts
Discussion Starter #8
Big update this time so I'll split it into two parts again.  First off though thanks again for the encouragement.  I'd love to do an Aster sometime Charles, and I think it would be a LOT easier than the accucrafts especially if its already an alchohol burner.  I'm all set on coal for now Ryan, but thanks for the offer.  You'll have to help me break her in on the inagural run (be it this weekend or if you're at ECLSTS).  The sooner the better on your parts Jay, if I can do this in a week on mine I should be able to breeze through yours while my memeory's still fresh on it.

Now to the boiler.  Sorry again for blurry pics, I'm having a love/hate relationship with my camera lately...

This is a good view of what went wrong:


As you can see, instead of going with staybolts from the barrel to the crown sheet I tried going with girders:


Well, the girders flat out refused to line up right no matter how much encouragement/fussing/cussing I threw at them.  There was also so little room to work with that I couldn't get a proper support inside to peen the rivits over.  I decided to just use the rivits as postioning devices and still try to solder the whole lot in place.  This was the beggining of the end.  If you look at the top picture again you can see the rivits through the crown sheet are still poking up into mid-boiler.  There was enough solder to join everything so I went ahead trying to line up the holes for the side stays.  Drilling through to ream them wasn't cutting it and I actually ended up with holes next to the pre-drilled holes in the firebox.  



At this point I knew it was over.  I could have tried plugging the extra holes but really would not have been happy with and and never would fully trust it.  So, for now the mogul boiler Mark1 will make a nice flatcar load or something.
 

·
Premium Member
Joined
·
161 Posts
Discussion Starter #9
Now for the good!  Got quite a bit accomplished today.  Mostly the fiddly little stuff that just seems to go on and on in a project like this.

First up was the axlepump.  Here's a piccie with the pump and most of the piping attached.  All it needs now is mounting holes drilled and the ececntric/strap made.  Have some parts for the strap but need to raid the scrap bin at work for a few pieces.


Next up was figuring out mounting postions for tender accessories.  Picked up some Trackside Detail parts Saturday for the various openings in the tender top.  The toolbox will flip open for access to the hand pump, and the water hatch will open for adding water and checking that the bypass for the axlepump is working.


Got the oil line routed from the lubricator to the new steam distribution block on the reversing valve.  Tucks away very nicely under the outer jacket.




Lastly for today I made up the new superheater.  I don't like the way the line on my K27 conversion ended up, so this time the lines comes off a fitting from the front flue sheet, runs into a flue then down to the cylinders.  I bit more Aster-esque as well.




And to offer up proof that I'm not the only one who had his hands on this project, here's my helpers for Staurday Jeff Redeker and Mike Peterlin doing some precision machine work on the cylinder reversing block.
 

·
Premium Member
Joined
·
3,378 Posts
Justin
As per the photo, Jeff is all talk and not action....either that or he has gone and done it again-flashing thus the censored "x" with not photo in the post!

At this rate you're turn around time per engine will be about a month per job.  That is a lot of coal from deep down in the pits, maybe we better go visit the coal veins in Scranton this weekend.
 

·
Premium Member
Joined
·
459 Posts
Hi Justin,

Great Job, How big is the grate? There is a big difference between the size for the Shawe Fowler and Shawe Mikado. The bigger
is much more forgiving in keeping the fire going

jim
 

·
Registered
Joined
·
9 Posts
Hey Justin,
The mogul looks great, I'm looking foward to seeing it this weekend in Scranton. I wish I could have made it up to your place on Saturday with Mike and Jeff ( hope Jeff didn't burn anything important with the torch) to get a few steam lessons but it was just too late when we left after lunch on Saturday for me to make it up. I'll have to catch your next class session. 
See you this weekend,
Rob
 

·
Premium Member
Joined
·
161 Posts
Discussion Starter #13
No idea what happened with Jeff's picture?  I think an engine a month would be easy at this point, I wouldn't have to keep up this furious pace.  One thing I forgot to mention is that I only picked this engine up at cabin fever so I havent' even OWNED it a month yet.

Jim, the grate is about an inch by three and a half inches.  The firebed will be one and a half inches deep from the top of the grate to the bottom flue.  I think its a pretty huge firebox for the size of the engine.

Sorry you couldn't make it too Rob, but there will be other times.  This is far from the last engine I'll be converting.  Jeff didn't manage to burn anything but I'll let you ask him about drilling staybolt holes.../DesktopModules/NTForums/themes/mls/emoticons/whistling.gif

LOTS of progress boiler-wise tonight.  Never thought I'd get so much done in so few hours.  Keep in mind this was all new construction for tonight.

Went with crown supports like Kozo has on is Climax model.  So much easier to work with!  Here's the blanks


And soldered to the new firebox


The boiler as of the end of tonight, a few stays soldered in to position the firebox for drilling, turret soldered on as well as lower gauge bush and safety bush


Proof of new boiler,old on the Left and new on the Right.


Doesn't look like I'll have the axlepump mounted and plumbed for the weekend, so if someone has a quick connect goodall valve and pump they can bring along i'd be much obliged.
 

·
Premium Member
Joined
·
161 Posts
Discussion Starter #15
Many thanks again Ryan!

Tonight's progress.  Except for finishing the turret and adding the firedoor pivots, the boiler is done.
 

·
Premium Member
Joined
·
749 Posts
Looks excellent,

Sure is gonna be alot of fun when you get it chugging

Too bad djb stop making there ruby coal conversion kits, after diamondhead I really want a coal burner, wouldnt mind making one myself (but I would be starting from scratch without much knowledge on making one aside from a few diagrams)

- Andrew
 

·
Premium Member
Joined
·
161 Posts
Discussion Starter #18
Thanks Andrew, and good luck with your future venture.  I tried coal firing a Ruby as my first boiler with less than stellar results.  I know it can be done, but to me its just too small to be practical.

Lasts nights progress was great, and certainly put tonights progress to shame.  Nice score on the blower too, know if there's any more?

Found out my axle pump won't work the way I want it to tonight so there will be a re-design on that.  Also had the suprise that non of the mulititude of Accucraft valve spindles I have will work in the manifold I have.  Ryan, if you're still reading, any chance you can pull a GS4 valvre and measure it for me so I can turn a couple up?

Did get the smokebox plumbing complete though, awful crowded in that tiny amount of room


Stuffed everything in place to make sure everything fit as well.  Even made the firedoor tonight.




And an unnoficial builders photo.  I really like that you can hardly tell any work was done to itt.
 

·
Premium Member
Joined
·
749 Posts
Accually,

I do think making a mogul is a better coal burner due to the more space to add an axel pump etc etc etc (ruby was due to cost/ first project - start small blah blah)


I am learning how to build a boiler form your post though, do you know any other places that could help me, I still have a few ?? lololike
1. Like I see that you have 2 connections going into the steam chest, one from the line that goes to the oil displacer and the other that feeds through the main boiler and into the the superheater you built.

2. the sides of the boiler have these rivit looking protrousions, are they cosmetic or accually hold the boiler together.

3. I also never seen how the bottom of a coal burner (the grating/ashpan area) is setup. I do understand there needs to be a blower(left pipe/ left vavle from the turrent) im guessing is for this purpose.


Any web links on any of this would help, start my long planning process. Keep the pictures coming.

- Andrew
 

·
Premium Member
Joined
·
684 Posts
Justin,

I'll do you one better. I'll bring my spare spindle set up (assume you need both to run ;) and you can make all the copies you want (thread is m4x0.8), just be sure to make me a set. Can't wait to see this in person, bringing the K-4, so we'll be smoking the place up for sure.
 
1 - 20 of 30 Posts
Top