Search found 644 matches

by Mike Walsh
Sat Dec 07, 2019 8:53 am
Forum: Build Log
Topic: Des Peres Valley #4 - Baldwin 0-6-0 using Allen Models parts.
Replies: 20
Views: 1570

Re: Des Peres Valley #4 - Baldwin 0-6-0 using Allen Models parts.

One of the issues is that the prints don't show the reversing lever stand..

If the radius of the reversing lever quadrant is known, we can approximate the distance of the pivot point very closely (within 1/32" perhaps) and get pretty darn close.
by Mike Walsh
Fri Nov 22, 2019 1:31 pm
Forum: General Discussion
Topic: Need to broach a square hole...
Replies: 8
Views: 816

Re: Need to broach a square hole...

Thanks for the advice guys. Got it squared way (ba-dum-*tss*).

I will post photos of the finished workpiece when I am done :)
by Mike Walsh
Fri Nov 22, 2019 8:39 am
Forum: Live Steam
Topic: Do wheels have to be cast iron?
Replies: 15
Views: 1154

Re: Do wheels have to be cast iron?

Bill Shields wrote:
Fri Nov 22, 2019 7:55 am
steel tires maybe....wheel (centers) can be anything
Paper was used as a material between the wheel center (that presses on to the axle) and the tire... :)
by Mike Walsh
Fri Nov 22, 2019 6:12 am
Forum: Live Steam
Topic: Do wheels have to be cast iron?
Replies: 15
Views: 1154

Re: Do wheels have to be cast iron?

This is a cast iron wheel. This is a cast iron wheel that runs on steel rail, pulling a fair amount of tonnage in MOW service, and on rare occasions when needed in a pinch, a full trainset (50-60 adults). I machined new axles for this locomotive in 2009, and the wheels were fine then. YMMV. I believ...
by Mike Walsh
Wed Nov 20, 2019 12:42 pm
Forum: Live Steam
Topic: Low water mark
Replies: 16
Views: 1377

Re: Low water mark

You mentioned that the atomizer line keeps filling with water when firing. This is likely due to condensate of steam in your atomizer line. I started the practice at the WF&P of cracking our steam-up blower hookup valve (which is at the lowest point of the cab piping) on our #534, to allow condensat...
by Mike Walsh
Fri Nov 08, 2019 7:39 am
Forum: General Discussion
Topic: Need to broach a square hole...
Replies: 8
Views: 816

Need to broach a square hole...

Hi all, I'm working on a electro-pneumatic semaphore signal for a railroad. I've been asked to machine new bushings for the shaft. My issue is the shaft is a 3/4" square shaft. I am trying to determine the best way to broach this opening. The bearing will be 1-3/8" in length, which is a pretty subst...
by Mike Walsh
Thu Nov 07, 2019 7:38 am
Forum: Live Steam
Topic: Alcalde & Coalfield High Line
Replies: 186
Views: 78110

Re: Alcalde & Coalfield High Line

Beautiful, Jack. Motivation for me to keep going on my projects. Would like to visit your track one day.
by Mike Walsh
Sat Oct 19, 2019 7:59 am
Forum: Build Log
Topic: 3/4" Scale J1e
Replies: 267
Views: 68128

Re: 3/4" Scale J1e

NP317 wrote:
Fri Oct 18, 2019 10:20 pm
Fingers, no doubt.
RN
Ba-dum *TSSS*
by Mike Walsh
Sun Oct 06, 2019 9:30 pm
Forum: Live Steam
Topic: Alcalde & Coalfield High Line
Replies: 186
Views: 78110

Re: Alcalde & Coalfield High Line

Jack,

If you are willing to divulge, how much would you say it costs per Pylon to build?

Mike
by Mike Walsh
Wed Oct 02, 2019 5:12 am
Forum: Live Steam
Topic: Oil firing question
Replies: 38
Views: 7265

Re: Oil firing question

I do not think that your fuel is viscous enough to require pressurizing the tank. Simply having your tank sitting on top of your water tank on your tender should be sufficient. Gravity feed is your friend. It is also safest. We gravity feed at the WF&P. It does just fine. We do have the occasional i...
by Mike Walsh
Sun Sep 29, 2019 2:25 pm
Forum: Live Steam
Topic: Oil firing question
Replies: 38
Views: 7265

Re: Oil firing question

I think it is safe to say that once you have seen it happen, or you have done it, it is a lesson learned. Earlier this year - I watched a gentleman who is getting up there in age, try to hostle an engine over to its train. Snuffed the fire right out. He got out of the engine, went to get his oil wic...
by Mike Walsh
Tue Sep 24, 2019 5:46 am
Forum: Live Steam
Topic: Modified D-valve dimensions from print
Replies: 16
Views: 3688

Re: Modified D-valve dimensions from print

Yes - but I wanted to make sure I understand correctly. The notes say to modify 'C' to suit, while maintaining 1/8" Lap. With the amount of core fins that is present, I think I will be over the 0.250" port dimension when I clean up. Also, the notes call for a 3/8" distance between the cavity inside ...