Member postings for David Kenyon 2

Thanks , I did not realise you could buy them that small . That said I think mine will need to be

a little smaller than 1/32 so I will get some wire.

Thanks for the offer Chris

I have been making some M3 castle nuts which will require split pins when fitted.

What is the preferred method to make tiny split pins

OK interesting thoughts, thanks I will have to have a think about it now although

its probably a bit bulky for my mill.

I will make some measurements tomorrow .

I bought this at Action a while back and don't seem to have any use for it so might sell.

Not sure what to advertise it as , it has a Parvalux geared motor so turns the chuck fairly slowly.

I am just starting the Rocker posts this morning , like you say it will give me an indication of

valve length when i fit them.

I sent Mike a private message through MEM but got no reply so i thought i would try here.

I have just made the valves for this engine and they appear to be too short.

I have checked the plans and the dimensions I used seem correct so maybe

the plans are at fault.

Just wandered if anybody can remember having an issue making this engine.

Well its taken a while but finally completed five cyl heads [ one spare]]

I found the best cut was made using a 'climb cut' I just tightened the jib strips slightly .

Also seemed to cut cleaner with a dry cut or very little fluid, less grab for some reason.

Not the most exciting job , just put some music on and got on with it .

Hi , will one saw be able to cut the fins in four cyl. heads without loosing its sharp edge.

thanks

I need to cut fins into an Aluminium cyl. head the same as the one below.

Which type of slitting saw would be best, number of teeth ect.

The Saw will be 1/32 thickness

Hi Howard , yes that's the sort of plug I was thinking, I don't think the oil pressure on

the little engine will be too high to pop a plug out.

Thanks for the replies, I do not think tapping and grub screws would be practical , I was hoping

there may be a soft plug I could use and press in.

Those Expansion plugs look good , I will read up on them.

I made the crankshaft below and cross drilled the oil ways which now need plugging. What is the preferred method of plugging these holes, they are 2mm and 3mm diameter.

OK Thanks , I will make them , just thought I would ask just in case.

I need to make some oil lines for my model like the ones below.

Can I buy them or do I need to make my own.

That's an idea , I might have a go at scraping it.

The problem with a re grind is the cost , I managed to pick up an excellent second hand bed much cheaper than a re grind

I replaced the bed on my Myford S7 a while back and the old bed has been sat under my bench ever since. Before I have my next tidy up and take it to the tip is there anything it might be useful for.

Thanks John, would be useful but I can probably work it out for myself if I need too so don't spend too much time looking.

Also does the crucible have to be made out of cast iron or can I use steel

I made some piston rings for my Gypsy engine and I want to heat treat them using a crucible [Trimble method I believe].

Reading on the internet I see reference to a formula which gives the dimensions of the crucible for a given ring size, does anyone one know were I can find this formula?