Search found 875 matches

by rkcarguy
Mon Nov 19, 2018 4:51 pm
Forum: Riding Scale Railroading
Topic: Train Mountain Track Building update
Replies: 18
Views: 809

Re: Train Mountain Track Building update

I caught that, the replaceable lower pilot plate. I'm surprised they don't have more derailments.
The description in the video states that some of the track sections date back to the Civil War era lol!
by rkcarguy
Mon Nov 19, 2018 3:00 pm
Forum: Riding Scale Railroading
Topic: Wheelset finishes?
Replies: 2
Views: 138

Wheelset finishes?

Got a fairly simple question for you guys. I'll be using steel wheels on steel flat bar "groovy track". Wheels and track are obviously going to rust and the shiny machined surfaces on the wheels are going to be short lived. Leave the wheel sets bare? Shot blast and paint with red oxide primer? I've ...
by rkcarguy
Mon Nov 19, 2018 2:52 pm
Forum: Build Log
Topic: D&RGW steel caboose in 1.5
Replies: 15
Views: 1037

Re: D&RGW steel caboose in 1.5

Several of us have been clicking on your links and are able to see the photo's, it's not a big deal for me.
by rkcarguy
Mon Nov 19, 2018 11:16 am
Forum: Riding Scale Railroading
Topic: Train Mountain Track Building update
Replies: 18
Views: 809

Re: Train Mountain Track Building update

You guys can just go "prototypical" and model after these guys. Problem solved.

https://www.youtube.com/watch?v=9X2A2f6E5DI
by rkcarguy
Fri Nov 16, 2018 1:21 pm
Forum: Live Steam
Topic: OMG, Kamikaze bugs!
Replies: 14
Views: 944

Re: OMG, Kamikaze bugs!

I've had a terrible time with some kind of small black beetle like bug that builds these little white fluffy nests in fuel vent lines(boat, truck, go kart, etc). Go to use said vehicle and it runs for a few minutes starves for fuel then dies, huge vacuum on fuel filler cap. I ended up cutting one en...
by rkcarguy
Fri Nov 16, 2018 11:43 am
Forum: Riding Scale Railroading
Topic: Train Mountain Track Building update
Replies: 18
Views: 809

Re: Train Mountain Track Building update

https://www.engineeringtoolbox.com/linear-thermal-expansion-d_1379.html This site has a good calculator on it. If I run 10' sections of *steel* from 0*-180*F I get a growth of .259". So that's an increase of 1/8" per end, or 1/4" per joint. In aluminum this doubles to .497", so about 1/2" gap per jo...
by rkcarguy
Thu Nov 15, 2018 9:17 pm
Forum: Build Log
Topic: Gunderson well car
Replies: 5
Views: 319

Re: Gunderson well car

I think working from a good model is a pretty good way to go myself:)
Only other options if you can't find drawings are to take a friend, tape measure, likely trespass on RR property, and start measuring?
by rkcarguy
Thu Nov 15, 2018 5:29 pm
Forum: Build Log
Topic: Gunderson well car
Replies: 5
Views: 319

Re: Gunderson well car

I've built several, in HO scale:) They are available in several types actually, the models I have are a string of three with two shared trucks. Then there are ones in pairs, and others with trucks on each end like normal rolling stock. On my models, the shared truck is attached to one half and the o...
by rkcarguy
Thu Nov 15, 2018 4:54 pm
Forum: Riding Scale Railroading
Topic: Train Mountain Track Building update
Replies: 18
Views: 809

Re: Train Mountain Track Building update

Aluminum has a much larger expansion rate, and I wouldn't doubt that the lumpiness shown is due to the track getting "tight" and having no where to go except up. When figuring expansion rates, heat in direct sunlight has to be considered, not just ambient temperature. Here in the northwest it's very...
by rkcarguy
Fri Nov 09, 2018 4:35 pm
Forum: Grand Scale Railroading
Topic: 12" working railroad
Replies: 359
Views: 40316

Re: 12" working railroad

I found some bushings that were pretty affordable, ~$1.50 each, 3/8 x 1/2 with a collar on one side. So I'll press these into the point rails at the pivots and where the tie bar attaches and use bolts through them. I figure anything I can do to reduce maintenance and prevent the points from rusting ...
by rkcarguy
Tue Nov 06, 2018 5:36 pm
Forum: Live Steam Marketplace
Topic: 4 Wheel parts for 2 1/2" scale Bobber Caboose or Gondola
Replies: 4
Views: 524

Re: 4 Wheel parts for 2 1/2" scale Bobber Caboose or Gondola

Those diameters relate to 36" wheels in 1.5/1.6" scale. Too small for me, got me all excited for a second there.
by rkcarguy
Tue Nov 06, 2018 5:33 pm
Forum: Live Steam
Topic: Easy 1/4" check valves?
Replies: 10
Views: 949

Re: Easy 1/4" check valves?

The difference you found here in this thread is due to pipe vs. tubing, two very different sizes. Tubing is measured by OD, pipe is measured by flow size through the pipe, typically plus a bit, and then pipe threads are far larger. When tapping a 1/4" NPT thread, it's drilled ~7/16". 1/4-40 thread, ...