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Elmer did a slide valve Uniflow engine, although he calls it a UnAflow. For the description, have a look at Elmers Engines Steam Engine Plans Scroll down and it's no.48 on the hymn sheet. Your latest curiosity looks interesting! Dave The Emerald Isle

I don't know the design, but the 'long tube' is known as a trunk guide for the crosshead. These normally have slots cut in the non-bearing surfaces (in the same plane as the crankshaft). This allows access to the crosshead for lubrication. The piece of flared copper pipe suggests this is a...

In case there are no other suggestions, have a look here: https://modelengineeringwebsite.com/USS_Monitor_engine.html Dave The Emerald Isle

Sounds like you need to adjust the valve timing, assuming the cam is correctly shaped. Try moving the cam first to close the valve later then if no success, move the cam in the other direction. I've seen it suggested that the valve needs to close no later than about 170 deg after TDC. Dave The...

Not much help in the present time, but there used to be Balerman selling plans in 3" and 6" scale for a Case type baler. Maybe someone has a set gathering dust in the attic. Try asking also on the Smokstak forum https://www.smokstak.com/forum/forums/scale-model-engineering.54/ Dave The Emerald...

I have a catalogue from Joe, dated 16 Jul 2007. This is a type written list with line drawings for each item. (Joe never used a computer!) The items listed therein: American Beauty (Economy) engine $149 No.4 Model Centrifugal Pump $21.75 DeLuxe kit $28.00 Water well...

Following on from Norm's posting, 2 well known suppliers of vfds in the UK are Newton Tesla (which I have used and am completely happy with) https://www.newton-tesla.co.uk/product-category/lathe-speed-controls/ and Transwave Transwave Converters There are 350 vfds for sale on eBay UK at the...

Instead of tapping the ball, another way is to glue a ball to a rod that has been centre drilled and twiddle the ball back and forward on the seat to burnish it. Just a few twiddles usually does the job. The rod should fit the top part of the valve to keep everything normal. Obviously a new...

It's been quite a long time since I stopped collecting hard drives, but from memory the bearings were a 'press' fit in the holders. I tried initially to bash them out but that of course didn't do the bearings much good! Using a steel ring that was a similar diameter to the race and hitting...

I saved the discs for an as yet (and probably never will be) unbuilt Tesla turbine. The hub spacers would be the spacers between the discs. The bearings have come in handy over the years for small models' crankshafts, etc. Put one of the magnets in a plastic bag and you can use that to pick up...

We wait with bated breath to see the progress you make once you get the drawings! If nobody offers you a set, you can get them from Stuart Models https://www.stuartmodels.com/products/spare-parts/stuart-triple 95145 Stuart Tripe Drawings (3 drawings) £41.50 Dave The Emerald Isle

Why not ask Roland Morrison, designer/supplier of the castings? http://morrisonandmarvin.com/contact.php Dave The Emerald Isle

Looks a bit like LBSC's Hiellan Lassie. Dave The Emerald Isle

I also used to work in the offshore oil industry. I liberated many pieces of scrap metal, mostly non ferrous, but also steel bits that would come in handy; anything that would fit in my bag. Worn bronze valve stems, bumper sub spline bushings were always good. The best I ever got was a BOP wear...

A small addition to Ian's reply. When you set up the flywheel in the chuck, get the inside of the rim running as true as possible. You can always take a slight cleanup cut on the side of the hub to minimise any eccentricity when you are tready to bore the shaft hole. (Only the outside needs...

Over on the Smokstak forum, there is a long thread on the trials and tribulations of the Chinese hit n miss engine https://www.smokstak.com/forum/threads/hit-miss-model-from-banggood.183893/ Dave The Emerald Isle

Maybe not the cheapest, and a UK supplier, but you can get some ideas from https://www.machine-dro.co.uk/dro-packages/dedicated-dro-lathe-kits/myford-lathes Dave The Emerald Isle

When I wound the coils on my dynamo, I Thought I had them wound like a horseshoe magnet as shown in Bluejets fig 1. There is only one layer of copper wire in the coils and the neo. magnets were to try and make up for the lack of coil layers. The magnets were placed in the bridge N down on...

If you want to run on glo plugs, also think about the electric power requirements for multiple plugs. This issue has been discussed in other topics (much) earlier on this forum. From memory it was concerning the use of Cox glo heads in multi cylinder applications. Dave The Emerald Isle

The original Unimat motor looked like a typical sewing machine motor. The later U3 lathes had motors double the power but were only rated at 50% duty (10 mins on, 10 mins off). So, if looking for a new motor for your SL, then consider getting a more powerful motor than original and one that has...