3/4" Scale J1e

Where users can chronicle their builds. Start one thread and continue to add on to it.

Moderator: Harold_V

User avatar
JBodenmann
Posts: 3855
Joined: Sun Oct 26, 2003 1:37 pm
Location: Tehachapi, California

Re: 3/4" Scale J1e

Post by JBodenmann »

Hello My Friends
Here are the pedestal liners fitted to the tender truck side frames.
Jbox57.jpeg
And with the journal boxes in place.
Attachments
Jbox58.jpeg
Steam Engine Dan
Posts: 660
Joined: Thu Nov 18, 2010 5:08 pm

Re: 3/4" Scale J1e

Post by Steam Engine Dan »

JBodenmann wrote: Tue Oct 25, 2022 10:41 am Hello My Friends
Here are the pedestal liners fitted to the tender truck side frames.
Jbox57.jpeg
And with the journal boxes in place.
holy moly
Attachments
15192753_10154095650293317_1943417567202931837_n.jpg
15192753_10154095650293317_1943417567202931837_n.jpg (8.41 KiB) Viewed 2749 times
User avatar
JBodenmann
Posts: 3855
Joined: Sun Oct 26, 2003 1:37 pm
Location: Tehachapi, California

Re: 3/4" Scale J1e

Post by JBodenmann »

Hello My Friends
It's been some time since anything was posted concerning the J1e. I have been working on Jim's Berk. So nothing has been happening on the little Hudson. I have the copper sheet for the one piece formed bottom sheet for the tender. Also the brass sheet for the sides and coal space. The axle boxes for the tender trucks are finished. But something came in the mail the other day that you might find interesting. Some beautiful cross compound air compressor castings from our friend Anthony. Ahh, these will fill that empty spot behind the compressor shields on the pilot. Once Jim's Nickel Plate Berkshire is gone I plan on spending several months just working on the Hudson, and some other little projects of mine. Too much fun! :D
Jack
Cross.Comp.jpeg
User avatar
NP317
Posts: 4557
Joined: Tue Jun 24, 2014 2:57 pm
Location: Northern Oregon, USA

Re: 3/4" Scale J1e

Post by NP317 »

Beautiful castings!
RussN
Odyknuck
Posts: 815
Joined: Mon Aug 08, 2022 4:21 pm
Location: Chardon, Ohio

Re: 3/4" Scale J1e

Post by Odyknuck »

Jack, are you going to make the pump operational?
User avatar
Bill Shields
Posts: 10460
Joined: Fri Dec 21, 2007 4:57 am
Location: 39.367, -75.765
Contact:

Re: 3/4" Scale J1e

Post by Bill Shields »

:shock:
Too many things going on to bother listing them.
User avatar
JBodenmann
Posts: 3855
Joined: Sun Oct 26, 2003 1:37 pm
Location: Tehachapi, California

Re: 3/4" Scale J1e

Post by JBodenmann »

Hello My Friends
The pumps will not be operational. They will just be for looks. I have known brilliant people to tear their hair out fiddling with steam powered pumps. LBSC had success with pumps, but they were not prototypical looking. The main objective with this engine is to be a close model of the prototype, but basically simple in operation. That means no actual power reverse, no steam powered pumps, two injectors and no axle pump. I plan on a battery powered compressor on the riding car for the brakes. These pumps are enough of a fiddle just to put together as dummies. I hope to actually finish the engine. :D
Jack
Berkman
Posts: 679
Joined: Wed Aug 16, 2017 7:55 pm

Re: 3/4" Scale J1e

Post by Berkman »

Wasn't Brian Keim developing working compound pumps?

Any steam water pump of his I've seen, has always worked great and reliably.

Agree on keeping it simple when it comes to functioning equipment, but it is neat watching a water pump slowly tick over.
User avatar
Bill Shields
Posts: 10460
Joined: Fri Dec 21, 2007 4:57 am
Location: 39.367, -75.765
Contact:

Re: 3/4" Scale J1e

Post by Bill Shields »

And they are not compound....

Compounding in small scale brings with it and untold number of problems.
Too many things going on to bother listing them.
SteveM
Posts: 7763
Joined: Mon Jun 27, 2005 6:18 pm
Location: Wisconsin

Re: 3/4" Scale J1e

Post by SteveM »

Bill Shields wrote: Fri Dec 02, 2022 12:26 pm Compounding in small scale brings with it and untold number of problems.
The problems just "compound", eh? :-)

Steve
User avatar
Bill Shields
Posts: 10460
Joined: Fri Dec 21, 2007 4:57 am
Location: 39.367, -75.765
Contact:

Re: 3/4" Scale J1e

Post by Bill Shields »

Actually they go up with the square of the reduction factor.

I call it the finicky factor.

There are precious few compound pumps running reliably in 1.5" scale.
Too many things going on to bother listing them.
User avatar
JBodenmann
Posts: 3855
Joined: Sun Oct 26, 2003 1:37 pm
Location: Tehachapi, California

Re: 3/4" Scale J1e

Post by JBodenmann »

Hello My Friends
Here is more concerning the plug valve. Before assembling valves, both plug and globe it's a good policy to butter things up with some sort of lube. Here Dow Corning #112 high temp silicone is being used. This is good stuff. I put it on the threads, stem, and packing on globe valves. Also anything with O rings.
PlugValve12.jpeg
Here is the valve put together. It's much smaller than a commercial plug valve, which was needed here as it has to fit in the small space between the rear frame extension and the stoker engine. As I touched on earlier in this thread little specialized fittings like this must often be made for our models.
Piping is a prominent feature of steam locomotives and neat and tidy work here really pays off. A model is only as good as its weakest point.
Jack
Attachments
Plug Valve14.jpeg
Post Reply