THE TROUBLE WITH OLD STEAM LOCOMOTIVES - PART #2

[@94XJ]

Looking at that top bolt of the water gauge made me think of my grandpa - "If brute force doesnt work, you're not using enough!"

[@engineerskalinera]

Loving this series.

[@mervynprice7009]

Thank you for your lovely short videos. I really do like watching them. Your methods are yours & nothing is wrong with that. To many people forget that all engineering is developed to suit the required end product & the machinery at hand. The great pleasure about model engineering is the need to overcome many engineering problems with hands & eyes plus a little amount of machinery. You rightly point out that for many of us time is not an issue. Thank you for these kind words. May I add that for you, clearly you do this for the love of model engineering & thank you. But you time constraints, very similar to a lot of younger people. So your methods do show how to make more efficient use of your time than most other model engineers videos do. So again thank you. Mervyn Price

[@keithappleton]

Thank you for your comment Mervyn {:-)))

[@mervynprice7009]

@@keithappleton Thank you. As a retired design engineer I was always part of a team & we all believed that none of us knew that much that we could be dictatorial. Instead, we watched & listened. Surprising how much you learn when you open your mind up. When it comes to model engineering I am a complete beginner. So you can imagine just how much I am enjoying watching your videos. My Father spent hours on this hobby & loved it. He was an exceptional Engineer & far better than I, or any of the really great engineers I have worked with. His position in Industry proved it.

[@jacksnorth4074]

Just discovered your channel, and already love it, the detail and logic is explained extremely well, all in a voice that is so relaxing! 🤩👌

[@someguy2741]

Does this sort of wear happen with a huge amount of usage? How long does a reasonably made steam engine run before wear requires major repairs like this? An associated question... do they measure the usage of steam engines at all (in kms run or hours run for instance)?

[@henrybn14ar]

The couple rod problem is interesting. You can understand why single wheel drivers like the Stirling 4-2-2 persisted for so long.

[@antonylawrence7266]

You have to have a boiler certificate ! Honestly, that never occurred to me. Is it from the same body that tests the full size jobs ?

[@keithappleton]

No, it is the official body for miniature pressure vessels as far as I am aware. In my case in the UK it is usually the "Northern Federation" but you can use licensed individuals to do the job . . . .

[@antonylawrence7266]

@@keithappleton things you never knew you never knewed ! Your channel is better than Netflix

[@keithappleton]

Thank you, I am pleased that you find it useful }:-)))

[@jeeptrail08]

great video thank you for the upload

[@joohop]

Oversized Long Lost Love's , I've Had A Few Great Video Earthling Bless Up

[@bigliftm]

qestion @ Keith : why dont the use ball bearings on the main axels ? iam not a steam guy so sorry if this a silly qestion. ( more into model airplanes / playing saxophone and ham radio )

[@keithappleton]

I do, but the majority of model steam locomotives have plai axle boxes.

[@henrybn14ar]

Same with prototypes. Roller bearing were used experimentally on the last of the class 5 4-6-0s built around 1950 and then in many of the BR standards. I understand that the locomotive has to be set up more accurately. This was an issue with Tornado.

[@commonroadjunction4047]

What’s the difference between coupling rods and connecting rods ?

[@keithappleton]

Coupling Rods Connect the wheels, Connecting Rods connect the piston to the crankpin via the crosshead.

[@commonroadjunction4047]

Keith Appleton so dose that mean the connecting rods provide the motor power from the pistons to the wheels ?

[@keithappleton]

yes

[@commonroadjunction4047]

Keith Appleton thank you

[@kiwitrainguy]

Simple way to remember - Coupling rods between the wheels, hence the term Coupled Wheels.

[@warrenlehmkuhleii8472]

Oh he uses Imperial Units. I like him.

[@kiwitrainguy]

Entirely appropriate with steam locomotives.

[@lucastrain1015]

I'm building a polly would you say they are reliable there is someone at the train club I go to that say they are but I want to now by professional

[@keithappleton]

I have never owned one, but from what I have seen of them they are OK. I think the wheels are a bit small though, when I have seen them passenger hauling at speed the wheels are a blur and I would be concerned about the wear rate if run excessively for long periods like I used to do with my engines......

[@steamboatmodel]

The more I look at Locomotive the more I am glad I build steamboats.

[@godfreypoon5148]

Did this video get demonetized? I noticed you used the word "quartered "... KZbin would probably be upset by that.

[@dbaider9467]

Fascinating and very interesting. How old are these engines?

[@keithappleton]

Probably around 20 years . . .

[@VT29steamtrain]

Hackworth Valve gear! Like our loco! But its the modified version same as ours.

[@steamandsmoke97]

It's Marshall Valve Gear, not Hackworth. Hackworth entails a dieblock and a guide that oscillates to reverse the timing of the engine. Marshall does this with a series of linkages as seen here so there are no sliding parts, only pivoting parts which from a maintenance point of view is desirable because the biggest wear points are replaceable bronze bushings. Same thing when you compare Walschaerts and Baker gear despite being entirely different valve gears, they were both common on later steam engines. Walschaerts has a dieblock that slides within the reversing or expansion link, and Baker only has bushings and pins that the Bell Cranks pivot on. Dieblocks and reversing links are specific to each class of engine while bushings can be made to standardized sizes for streamlined repair, which is why many engines built in the late Steam Era including the vast majority of "Lima Superpower" had Baker Gear. Having as many "COTS" (common off the shelf) parts on a locomotive as possible helped to significantly reduce downtime and increase the route availability so the engine can keep producing ton-miles and making money for the railroad.

[@Graulas]

I have a 50-70 year old marks model lumber engine

[@barryphillips7327]

Clearly the loco has had amateur repairs from it,s owner, probably would have better leaving it as it was and seeking proper advise from people who know what they are doing!

[@rubi4646]

to short ....

[@keithappleton]

www.patreon.com/keithappleton