Farm Boy

Nice work

Rod

Very nice, making a good job of that.

Paul.

Agree with above. Great work. The con rod looks the busness.

Steve.

Thank you everyone not a lot to show for today just odd bits and pieces that are not worth looking at. I am waiting for some more material to turn up.

Got a message that they would be here today, then another saying they would not manage today but "will be here next working day" followed by Oh we have not collected them from your supplier. Lets see what tomorrow brings

Took a break from the main components today and made a start on the main oiler for the engine as I had some test tubes arrive for some single flower pots I will be turning from wood, before I do them I needed a small length of one of them for the oiler.

Most of this is from brass the first photo is a part assembled oiler. There needs to be a control needle and a sprung piece to stop it turning as well as a nut and obviously the glass.



This photo is the parts made so far except those which need to be made as above.

I am enjoying working with brass. The two discs which form the top and bottom of the oiler are just over 3/4" diameter to give an idea of the size

I also prepared some bronze for the big end bearing no photos

Very nice work Dalboy. I made a swarf collector from some 28mm copper pipe, a stack of 25mm super magnets and some aluminium. Works a treat. Looks a little like a copper bicycle pump with an aluminium ring on it.

Been busy with the last part of the con rod and that is a bronze big end split bearing. The small dots are there to make sure that when it is taken apart to assemble the complete model they stay in the correct orientation

Then it is onto the crankshaft assembly, the plans show it mad from a single piece of steel but I have decided to make it up from two small pieces and some silver steel.

First was to make the two webs made easy by the use of a small home made stop which worked a treat.

Turning the raised sections as well as the curve on both ends I had to do this set up 4 times two for each piece

After the part being deburred I am pleased with the result

All the parts for the crank shaft assembly

A dry fit to check everything was in line. I have left the main shaft in one piece until it is finally fitted together. I will locktite them in and also drill for a tapered pin in each of the joins. The two pieces at the top of the photo are just machined to the correct width for the gap in the middle.

Still more to do to this once it is finally fitted together

What with gardening and cooking yesterday, I always cook a special meal on a Saturday for the wife to give her a day off. Nothing got done on the engine.

Today started a lot better so I took my time as there is a lot of work to restart the crankshaft if I mess up.
Drilled and pined the second conrod bearing and cleaned that up and as can be seen the pins disappeared

The main shaft was loctited in at the correct spacings before drilling and taper reaming for the tappered pins as I did with the first shaft once again cleaned up and no sign that they have been pinned. I don't want it coming apart

The job I was not looking forward to is machining two 1/8" keyways the longest one is 1/2" long This was done using a 3/32" slotting cutter so was very slow as too much pressure on that would snap it like a twig. This meant that I had to machine down the centre and then widen it with a cut down each side

Final job was to cut and machine away the main shaft that passed between the two crank webs. At least that is the crankshaft completed

What with making the crankshaft the next part was drilling and reaming for the main bearing, as well as making the bearings which was not so bad.

Anyway this job was done without any problems but I did spend a little time setting up to do this task.

All done and fitted just a little clean up now to get rid of some marks. I do need to ream the bearings again as the caps pinch it very slightly rather this than too loose.