Member postings for vintage engineer

It machines fine with tip tools but I'm not sure if it is suitable for exhaust valves.

You need a longer tool.

Try lapping them in.

You could white metal the nut, this will remove the back lash and will last long enough to make a new nut.

Use Rocol cutting oil and this helps a lot.

I had a Honda CRV that had done 250k and failed it's MOT on emissions but was still totally reliable and rust free.

Mercedes are absolute junk! Fortunately for me I profit from their poor quality. Heater plugs regularly cease and then snap off! Timing chain sprockets are made from cheap sintered crap and fall apart at about 50k stuffing the engine!

Making steel sprockets and removing heater plugs should pay for my holidays for the foreseeable future!

I make my own using old tankards and lead pipes.

As a rough guide you need the hole .001" per inch undersize. So you need to make the holes .0005" under the size of the silver steel. So measure the silver steel first then set your reamer to cut as above. I would make a test hole first.

Try here. **LINK**

You make one! I own several lathes and one of them is a Galileo 330 x 2000 with hydraulic drive.

Never understood why people have problems with parting off. Now we have insert parting tools it's a doddle, as they are made for power feed parting off. I usually set the lathe speed to about 500rpm to 800rpm and a medium speed feed and let it go.

I have happily parted off 10" round bar with no problems.