Member postings for Simon Clark

Hi Alan,

This is perfectly normal. These engines are made up from an aluminium piston, brass liner which is chrome plated and this is known as 'ABC'. The ringless piston is usually made from a high silicon content ally which has a low thermal expansion rate. The cylinder liner is very slightly tapered with it being narrower at the top such that when it gets up to running temperature, the hotter top end of the cylinder expands more and the piston / liner clearance is perfect all the way down. When new, piston / liner fit can be very tight indeed but after running in, it will free up a bit but even then, some engines will still have a very tight top end when cold.

Simon

Hi,

I have just replied to an advert. I have not received any confirmation that the email has been sent and there is nothing in any sent items folders.

Is there a way of saving a copy of sent responses to adverts? On other forums, there is usually an option to save a copy of any message sent.

Thanks

Thanks David and Michael. I am in no hurry to change anything but I know that it is coming! I used Bridgeports in my apprenticeship at Rolls-Royce and I would love to have one, but I have absolutely no need for anything that big and nothing like the space (or money). My actual needs are usually for very small and lightweight parts and I only need quite small machines, although larger ones would make most jobs a bit simpler and quicker. I also have a finite space and I have to balance the space used by machinery against that left for benches and general building. Some model aircraft can get quite big and use up a lot of space.

Simon

Hello,

I have been playing around with lathes and milling machines for a few decades now, primarily to make small things for R/C model aircraft (and cars a long time ago) I have only got some small machines but I am looking to upgrade so I have joined this forum for help and advice

Simon