Search found 791 matches

by Soot n' Cinders
Mon Oct 07, 2019 1:23 pm
Forum: Live Steam
Topic: 730 Old Boiler Dissection
Replies: 70
Views: 5420

Re: 730 Old Boiler Dissection

Carl, I use a diluted solution of NaOH (lye) to boost the pH. Used with care, it does work. Same here. I put about a tablespoon of washing soda, sodium carbonate, directly into the boiler to buffer my ph. The soda will dissolve and form lye in the water and the excess creates a buffer that holds my...
by Soot n' Cinders
Thu Oct 03, 2019 10:17 pm
Forum: Live Steam
Topic: 730 Old Boiler Dissection
Replies: 70
Views: 5420

Re: 730 Old Boiler Dissection

A neutral pH value would be 7. Ideally the boiler water should be a higher pH, in the basic range. If you google "sodium sulfite anhydrous" you will find several mail-order suppliers that sell a one-pound jar for less than $10. I use just a few ounces dissolved in a pint of boiling hot water, which...
by Soot n' Cinders
Wed Oct 02, 2019 6:30 pm
Forum: Live Steam
Topic: 730 Old Boiler Dissection
Replies: 70
Views: 5420

Re: 730 Old Boiler Dissection

With all this talk of issues from excessive aeration, would it be worthwhile for us to add oxygen scavenger to our boiler treatment regimens? I use LSB already but from what I understand, there is nothing for oxygen in there. Just a pH buffer and some chemicals to keep solids in suspension.
by Soot n' Cinders
Sat Sep 28, 2019 11:53 am
Forum: Live Steam
Topic: side rod lubricators?
Replies: 15
Views: 1478

Re: side rod lubricators?

American Model Engineering has grease cups like Jack has. I used them on the wrist pins and rod big ends on my shay, they do work really well. You can feel when the bearing is full as the caps get tight and hard to turn. I run the caps down till tight after each 2mi round trip on our railroad, doing...
by Soot n' Cinders
Fri Aug 23, 2019 12:06 pm
Forum: Build Log
Topic: Building the 2.5" Scale Shay
Replies: 811
Views: 158820

Re: Building the 2.5" Scale Shay

Any idea how many of these Shays are operating right now? There is of course John's, and your's. Anybody else? Just wondering. Seems like a neat engine. Greg Glos at midsouth has one operating too. There’s several others that are close as well. Another year or two and there will be a whole gaggle o...
by Soot n' Cinders
Wed Aug 21, 2019 12:50 pm
Forum: Live Steam
Topic: Walschaert Eccentric Key
Replies: 9
Views: 1790

Re: Walschaert Eccentric Key

I would. I’ve seen the main pin work loose and begin rotating on a friends LE Atlantic
by Soot n' Cinders
Wed Aug 21, 2019 11:22 am
Forum: Build Log
Topic: Building the 2.5" Scale Shay
Replies: 811
Views: 158820

Re: Building the 2.5" Scale Shay

Correct. I did 2 layers so there’s 1/4in of insulation under the jacket. 1/8in May be more appropriate for a 3/4in scale locomotive, but I bet it would make quite a difference on a copper boiler
by Soot n' Cinders
Wed Aug 21, 2019 10:00 am
Forum: Build Log
Topic: Building the 2.5" Scale Shay
Replies: 811
Views: 158820

Re: Building the 2.5" Scale Shay

James, the insulation has made an amazing difference! I use noticeably less coal while running, and the biggest change is how long it takes to cool down now. Used to only take 2-3 hours, now it’s closer to 6-7 hours. I definitely recommend the insulation I used
by Soot n' Cinders
Wed Jul 10, 2019 10:15 pm
Forum: Live Steam
Topic: Air Compressor control
Replies: 11
Views: 2542

Re: Air Compressor control

One idea I've had is a safety valve on the tank plumbed to a pneumatic valve on the steam line. The safety would be plumbed to the pneumatic valve so the valve would close when the safety opens. A small leak between the safety and valve would allow the valve to open again when the safety resets. Thi...
by Soot n' Cinders
Fri Jul 05, 2019 4:00 pm
Forum: Build Log
Topic: Building My 2.5" 20 Ton Shay
Replies: 33
Views: 17573

Re: Building My 2.5" 20 Ton Shay

The way I have mine set is full release is almost the far end of the guided from the cylinder. That leaves plenty of wear allowance. Plus the breaks really shouldnt have that much travel, I think my pistons move maybe 1/2in between full release and full application.
by Soot n' Cinders
Wed Jul 03, 2019 5:47 pm
Forum: Live Steam
Topic: Fitting/Bushing/Boiler Question
Replies: 4
Views: 1232

Re: Fitting/Bushing/Boiler Question

PM Research will have the fittings you need. To me, it looks like all you need is a 1/8in NPT to 1/4in MTP reducer bushing and a 1/4in MTP close nipple
by Soot n' Cinders
Wed Jul 03, 2019 11:42 am
Forum: Build Log
Topic: Building the 2.5" Scale Shay
Replies: 811
Views: 158820

Re: Building the 2.5" Scale Shay

Lagging and jacket are done for now! Got a few spots to touch up on the jacket paint from reassembly but nothing major or in a very noticeable spot. Now I’m working on ganging the cylinder cocks together. Hopefully can get out and run some soon but with our weather being in the low 90s everyday, it’...