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    Seal in Cat

    And a ball handle for engaging the thread dial indicator! Alan, that is classy.
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    Does anyone else write out your machining steps ahead of time? ML Midge Cylinder Head

    Simple jobs, generally no. With a complicated part yes. Castings often need considerable care in finding a finished part inside them, sometimes involving compromises. After a careful survey, I may take initial light cuts just sufficient to create datum surfaces. These allow measurements to be...
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    1/3 Scale Ford 289 Hi-Po

    Terry, not sure about the arrangement of your crankshaft that caused problems with the installation of the oil seal, but going back it looks as though you had to get it over a shoulder. If that is correct, and in the unlikely event that you had not thought of it, could you have used a temporary...
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    Mini Tube bender.

    I can back up what George and Ian say. I made a small one with wiper dies, though I did not know that was what they are called. It works well. One surprise was just how tight the bearing clamp bolt needs to be
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    First and Third Projection Symbols

    Nice to have one still working. I think the one I had was a 33E. I reluctantly gave up on it after it had to be sent back several times for a faulty power slide switch. I found a good landing involved free fall until the last possible moment and then full retro.
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    How to cut internal gear?

    I'm impressed.
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    Threading and the compound angle.

    I prefer the angle method, but if for some reason I need to use the parallel method, I advance the top slide by half of the radial cut depth. This is equivalent to setting the topslide at 26.5° so it is close for 55° threads, and helps with 60° ones.
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    First and Third Projection Symbols

    I use 3rd angle because I grew up with it. 1st angle does have a slight advantage in sheet layout. Three orthogonal views are often necessary and sufficient. With 1st angle, the plan goes below the side elevation, and if a view of the left hand end (so drawn to the right of the side elevation)...
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    First and Third Projection Symbols

    Er, are you sure? Historically 1st angle may have been prevalent in the UK but throughout my engineering career, since tech drawing class in first year uni in the early '70s, the convention has been 3rd angle. I have a Stuart Turner drawing in front of me from 1958 that says it is in 3rd angle.
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    Building a twin cylinder inline i.c. engine.

    You can put the camshaft wherever you like if you introduce an idler gear. This was E T Westbury's usual arrangement. It also allows smaller gears to be used which improves the appearance of the timing case. Big gears are not nessary to drive the camshaft.
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    Seeking plans for twin cylinder inline i.c. engine

    Brian, you have commented (about 2 years ago, over on the MEM forum) on the video of my Seagull running, and my website which you have probably seen: Seagull Engine Construction Diary goes in to a lot of detail about building the standard water-cooled one from castings. Building one from bar...
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    Seeking plans for twin cylinder inline i.c. engine

    https://modelengineeringwebsite.com/Seagull_revisited.html Plans (and castings) from Hemingway Kits
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    Help requested with casting

    If I can take the thread down a side alley for a moment, does anyone know where I can get small quantities of the high-build paint used by patternmakers?
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    Cutting oils What do you use?

    Morris' Cora B neat cutting oil, diluted 1:1 with paraffin (kerosene) for most steel and aluminium. Rocol RTD for reaming, tapping and drilling, and I have also used it successfully on soft, gummy aluminium castings. The old A J Reeves sold a neat cutting oil called 'Cutmax' which was good...
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    Sleeve questions

    I like the base. Is it Padauk?
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    Sleeve questions

    For running on air grey iron or mild steel would be fine. For steam I would prefer iron. If you are using an aluminium piston with an o-ring seal then the bore needs a suitably fine finish. Also avoid the ring crossing any sharp port edges. In this application it is common practice to use much...
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    Stuart 5a stationay build

    To save money, but not time, a reverse, or better, double sided, spotfacing cutter is not difficult to make from silver steel (drill rod).
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    A 7" Scale Fowler Steam Lorry

    A very impressive job.
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    Aladdin's cave of machines to dispose of - help needed

    That needed doing.
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