Scott flame licker build

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cfellows:

--- Quote from: bogstandard on February 24, 2011, 04:34:19 PM ---Thanks gents, slowly but surely, it is getting there.

Ralph, you don't want retirement, it is not all it is made out to be.

As for getting in the shop, do what I do, a couple of hours each day if possible, make one good part at a time, and eventually you end up with what you want. In my younger days this engine would have been finished in a week, but I am getting a lot more enjoyment out of it now that I am taking a lot longer over things.

John

--- End quote ---

I've got to agree with you John, taking more time and doing it right, the first time is definitely better. I've discovered that I tend to get in a hurry and wind up having to do it over, sometimes 3 or 4 times. I'm also learning to take more time with set ups and think about tooling that will ensure more accuracy. These used to be distractions that I dreaded, but invariably I would spend more time than if I had just slowed down and done it right the first time.

Chuck

Bogstandard:
Too true Chuck.

I went in the shop this morning with the intention of sorting out the flywheel for this engine. So because I needed to use my smaller 4 jaw self centring chuck (8 spoke flywheel) I started to prepare the lathe for converting over to a Myford nose to use the smaller chuck, then realised I could do with one of those ball race straightening up tools, so I dropped everything to do with the engine and started on that instead.

The engine isn't going to get up and run away, it will still be there to carry on with after this bit of tooling is made.

It makes being in the shop a lot more interesting and relaxing, rather than forcing yourself to get things finished.

It was the same this evening, Stew called and asked if he could come visiting. So instead of me trying to get a late evening session in, he dropped in and we had a bit of a chinwag about how his new engine is going on, and he had a look at the bits and pieces I had made.

There is a lot more to this engineering thing to enjoy than you realise.

John

Dean W:
It's shaping up well, John. You do up good instructive text and explain the benefits of your steps well, too.
That grinder sure made a good job of the head. I like that!

Divided he ad:

--- Quote ---Ralph, you don't want retirement, it is not all it is made out to be.
--- End quote ---

Hence the little provisions... "I'd be happy if it came early with no complicating factors and lots of spare cash!"

But I know what you are on about :thumbup:

Still, definitely inspired :dremel:

Ralph.

Bogstandard:
I will try to give you a bit of inspiration when you call tomorrow Ralph, how to sweep out a workshop in one easy lesson.

That is what my instructor used to say if ever he caught anyone doing nothing. 'There is always something to do, even if it is only sweeping up'.

Now back onto the matter in hand, the flywheel.

I have a bit of a compulsion about flywheels. Usually they are the most noticeable item on an engine, and if they run out even a tiny amount on the rim and sides, they can spoil the look of an engine completely. So I will go to great lengths to achieve, if possible, a flywheel with no runout at all on the rim area. As far as I am concerned the spokes and hub, even though a little out don't detract from anything if the rim is spot on.

Unlike a bulky cast iron flywheel, where the rough casting adds character, my personal view with this one is that the more it is cleaned up, the better it will look. It has a very elegant shape, especially the tapered in rim sides and the eliptical cross section tapered spokes. Some might agree, lots won't. But to me a casting is just a means to an end, a finished correctly shaped component, if it needs every surface machining, then it gets it, if it doesn't, then the cast finish is left as is.

The casting for this flywheel, on first inspection looked fairly good, just loads of flash around the spokes to clean up. But on closer inpection, there was a fair amount of mismatch between the two halves as they were cast, as you can see on the rim mounted in the chuck.

So the first thing I did was to get it onto my RT and clean up the inner hub area, for somewhere for my chuck to hold onto with some semblance of precision.

I needed to use a smaller range of chucks for this job, so my lathe was converted over to a Myford nose, and because there were 8 spokes, I used my small 4 jaw self centring chuck.

Using the newly made nudger, the rim edge was brought to run true.

I soon had the outer rim, the rim face, hub and centre hole all finished at the same settings, so no matter what, this side of the wheel will look spot on. It was then flipped over and pushed backed with the machined rim edge right on the jaw faces. The second rim edge and hub was machined up. I now had a flywheel with the major edges running perfectly true.
After this stage, the flywheel was put back on the RT to have the inner rims that were machined before, gently trimmed to run perfect with the outer rim.

The flywheel again was mounted back onto the lathe chuck and the angle for the funny shaped sides found, 8°. Once that was done, those areas were cleaned up by using the topslide set over to do the cuts.

So this is the almost finished flywheel, just requiring a little bit of filework to blend the spokes into the rim and get the spokes straightened up down their tapers.

Not one single bit of wobble detected. :ddb: :ddb: :ddb:

It is such a shame that most of it will be covered in paint.

So that is all the major pieces done except for a few clean up bits, I can now get onto the small easy to make stuff.

Bogs

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