PROBLEMS WITH MODEL BOILER FITTINGS - IN THE WORKSHOP
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- Опубликовано: 15 окт 2024
- Problems With Model Boiler Fittings - In The Workshop. In this video I show the way to rebuild an old "Check Valve" or "Clack Valve as they are known. They were called "Clack Valves" because on the full sized version, when in steam, there is an audible "Clack" as the ball slams back down onto the seat inside the valve body after pumping water into the boiler. I also mention the universal problem of lime scale and Cathodic Corrosion when using dissimilar metals ie: Aluminium washers on brass fittings. IF YOU WOULD LIKE TO BECOME A PATRON OF MY RUclips CHANNEL, OR MAKE A SMALL DONATION VIA 'PAYPAL" TO HELP ME MAKE EVEN MORE OF THESE MODEL STEAM TUTORIAL VIDEOS, PLEASE GO TO: / keithappleton
or ..... www.paypal.me/k...
There are links to many more of my videos from the MainSteam Website: www.mainsteam.c...
Your steaming along Keith thanks for sharing your many skills
Love all your videos... I have a long commute to and from work and sometimes i listen to the videos instead of the radio...at least im learning something. I do have a question though and maybe you have a video but i need to replace a top bushing on one of my boilers; i believe a Cheddar... The existing bushing is stripped and now the plug just spins. I found the bushings on PM Research but was looking for a video on the actual replacement. Thanks again for the videos.....by the way..i did find them useful!!!..lol
There is this video that I made when I was working on an old Stuart 500 boiler, but bear in mind that this type of boiler is brazed (which has a higher melting point) so it didn't fall apart when I silver soldered the new bush in. I would leave boiler repairs to a professional if I were you. ruclips.net/video/oYE8BnUULAY/видео.html
Good idea to do boiler problems Keith as this is a bit of a dark art to a lot of people, I have always pulled peoples legs about " Metric" adjustable spanners and here you are with one to compliment your Bahco one.
The metric system is no laughing matter. One day you're joking about metric adjustable spanners, but the next day you're keeping metric and imperial pencil sharpeners in the same drawer and all hell breaks loose.
Wow...you replied, i was thinking another viewer might reply but Wow!...love your videos sir and thank you very much for the reply and advice. If i do move to having this done by a professional i will need to buy the bushings myself as i am sure a local welder will not have a hobby steam sized boiler bushings on hand. With that said, can you tell me what size the bushings are on a standard cheddar boiler? I had some 1/4 40 mtp and ust bushings on hand but the original plug would not fit it. I see that Clevedon Steam has them but really dont want to order the wrong thing. Thanks again!
Cheddar Models boiler Bushes were usually 1/4 x 32 threads per inch
Hi there great work as always were do you source your copper shim washes thanks mark
As always: www.blackgates.co.uk they are friends of mine and we go back a long way ......
@@keithappleton thanks for fast reply keep up the good work I really enjoy you video's keep safe. Mark
Thank you Mark {:-)))
Hi Keith, I love your videos; thanks for making them. I'm confused in this one, about the placement of the siphon and gauge: with the siphon horizontal as shown, how does it trap water to protect the gauge? I thought the loop had to face down? I'm new to this, so I may not know what I'm talking about.
It traps water because initially the pipe is cooler so the steam in the boiler fills the pipe and immediately condenses to water. The position is relatively unimportant. This boiler is designed for an Open Steam Launch and it is positioned like this so that you can see the pressure gauge clearly as the boat sails past.
Keith Appleton OK, thanks! I had assumed that the loop had to be down so gravity would trap the water (like a sink trap), but thinking about it, the pipe is so narrow it would stay in place like water in a closed off soda straw. Learn something new every day - thanks again!
Hi Keith, hope you don't mind answering my questions, - I was wondering do those stuart boilers have gallow tubes or is the main fire tube clear?
It is a Cross Water Tube Boiler ....... a good surface area to heat.
Seeing you clean the inside of the check valve a thought occurred to me - have you ever tried an ultrasonic cleaner? They can be bought very inexpensively. And if you used lacquer thinner in one I bet it would clean up greasy or painted parts very well.
I have seen them too, but the cheap ones are a bit small .....
We got ourselves an ultrasonic cleaner intended for jewelry for very little money. It is shaped a bit like a frier, and we use it to clean car injectors and other parts. I think it would big enough for most of the fittings and valves you use in steam engines.
Save money on a cheap ultrasonic cleaner by putting the item that needs cleaning in a bowl of water, and shouting at it. It has much the same effect as the ultrasonic cleaner. If anyone is interested, I have a cheap ultrasonic cleaner to dispose of.
:-)))))
Have you any experience with loctite 567? It seems its similar to 542 but for higher heat
No, only 542 ....
If scale build up is a problem, instead of buying distilled or de-ionised water, you can buy reverse omosis filters which are most often sold for cleaning water for use in fish tanks.
You can get a 50gpd filter for about £30-40 on ebay, and you have to factor in the cost of replacement filters and the waste-water (if you're on a meter), but might be worthwhile if you have very hard tap water.
The filtered water is also useful for other things, like ironing clothes, washing windows, and home-brewing.
I usually use tap water, but if you have a dehumidifier it is a free source of distilled water.
Or, collect the output from your dehumidifier and run it through a coffee filter to remove the dust. Not quite pure water (there will probably be dissolved gases in it) but not far off and best of all it a "free" byproduct.
I would be slightly concerned about maybe getting "Legionnaire's Disease" ......... }:-))) I do use a water filter jug sometimes though .......
How about a ceramic ball bearing for the clack valve? Or would that be utterly pointless?
I don't know - stainless steel clack balls seem work OK
Some people use a nitrite ball instead of a stainless steel one, but I always use a stainless one.
Most people assume my balls are brass, but in fact they too are stainless.
Looks like you give the ball a fairly robust tap when seating it. At 4:37
This is why you should use m.t.p. threaded fittings, they have a tapered pipe thread, and seal up nicely, instead of using straight threads and aluminum spacers
In this very small size "ME" threads are the standard.
A gallon of distilled water is under £3 from my local motor factors.