Search found 1398 matches

by Marty_Knox
Sat Oct 26, 2019 10:50 am
Forum: Live Steam
Topic: Bagley burner install
Replies: 37
Views: 2402

Re: Bagley burner install

The burner should be installed at the front of the firing pan. It should be aimed to hit the door sheet (back firebox sheet) below the fire door. This area should have firebrick or refractory cement. The firing pan should be covered for the front 2/3.
by Marty_Knox
Thu Oct 24, 2019 8:10 am
Forum: Live Steam
Topic: Which steam pump would you build?
Replies: 25
Views: 1948

Re: Which steam pump would you build?

The pump drawings Allen Models used to sell are the VanBrocklin pump.
They are now available from Friends Models.
by Marty_Knox
Mon Oct 14, 2019 7:23 am
Forum: Live Steam
Topic: Driver machining order
Replies: 17
Views: 2289

Re: Driver machining order

Before I do any machining on spoked wheels I paint them. You can get a good heavy coat on the spokes, then a nice thin coat on the machined surfaces after they are machined.
by Marty_Knox
Tue Oct 08, 2019 9:00 am
Forum: Live Steam
Topic: NJLS Fall Meet
Replies: 23
Views: 5093

Re: NJLS Fall Meet

Some pictures from the meet.
I didn't get this guy's name, but this sure looks like Ken Stemen's old Pacific.
IMG_4287.JPG
Andy Pullen, Paul Pickard, Dawnna Hudak, unknown, and my Atlantic.
IMG_4293.JPG
Glenn Papp and Liz Leggett
IMG_4296.JPG
by Marty_Knox
Wed Oct 02, 2019 5:42 pm
Forum: Live Steam
Topic: 730 Old Boiler Dissection
Replies: 75
Views: 11733

Re: 730 Old Boiler Dissection

As far as condemning limits, I seem to remember that a loss of 40% of the original thickness indicates that replacement is warranted. I suppose you’d need to consider the original factor of safety too. Maybe Marty can correct me on this? FRA regulation (CFR49:230.33) states: Wasted sheets shall not...
by Marty_Knox
Tue Oct 01, 2019 10:04 am
Forum: Live Steam
Topic: NJLS Fall Meet
Replies: 23
Views: 5093

Re: NJLS Fall Meet

Here's something you don't see very often, a steam/diesel tripleheader in 1.5" scale! That's Dan's Hudson triple heading with my F's on Saturday of the meet. And yes, the F's were being controlled from the cab of the Hudson, made possible by the R/C control system I recently installed on the F's. W...
by Marty_Knox
Sat Sep 28, 2019 7:05 pm
Forum: Live Steam
Topic: 730 Old Boiler Dissection
Replies: 75
Views: 11733

Re: 730 Old Boiler Dissection

Back when I was working at a certain railroad supply manufacturer, we would advise the users of steam generators in hard water areas to occasionally run a solution of sulfamic acid (H 3 NSO 3 ) and water through the coils. This procedure was generally quite effective in removing scale, and would no...
by Marty_Knox
Thu Sep 12, 2019 7:19 am
Forum: Live Steam
Topic: steel tires
Replies: 22
Views: 3742

Re: steel tires

Locomotive tires were available in 7 grades. 3 non-heat treated, and 4 heat-treated to different levels of hardness.
by Marty_Knox
Mon Sep 09, 2019 5:32 pm
Forum: Live Steam
Topic: NJLS Fall Meet
Replies: 23
Views: 5093

Re: NJLS Fall Meet

I am planning on being there. I have two boilers to deliver, and I'm bringing my 3 1/2" gauge Atlantic. I have some work to do so I can run it.
by Marty_Knox
Wed Aug 28, 2019 3:15 pm
Forum: Live Steam
Topic: 730 Gets a Boiler
Replies: 82
Views: 15455

Re: 730 Gets a Boiler

Full size we called them Ever Dribble blowdowns. They will seal under pressure, but if you open them when the engine is cold, with no pressure, they dribble.
by Marty_Knox
Tue Aug 13, 2019 7:25 pm
Forum: Live Steam
Topic: 730 Gets a Boiler
Replies: 82
Views: 15455

Re: 730 Gets a Boiler

Whatever the cause, the last three boilers that burned propane that I built replacement boilers for, it seemed that there was more corrosion on the fireside than on the waterside. That's why I said what I did. Granted, I did not conduct any tests. There is still a lot to learn about our little boile...
by Marty_Knox
Mon Aug 12, 2019 8:32 pm
Forum: Live Steam
Topic: 730 Gets a Boiler
Replies: 82
Views: 15455

Re: 730 Gets a Boiler

Carl, blowing out the firebox with compressed air is exactly what I am suggesting.
Probably best to wait until the boiler has cooled to ambient - maybe the next day.