Hello John So I made seals in my apprenticeship for turbochargers and exhaust systems, the copper beautifully soft anneal, which works very well . Thumbs up :-)
Hi Jtreg :-) thank you, good luck on your R80RT very similar but on their side, plenty of cleaning after you have finished lapping to get rid of all the paste.
One cheapy way of doing that when your "sucker" isn't holding is to put a bit of hose on the end of the valve stem and hook a drill to it and run it with your drill. It will go much faster than by hand though so you need to be very careful but it will work. ua-cam.com/video/TrKINFBsQD8/v-deo.html
Hi Otis :-) I have used tube on the valve stem before, but still did it by hand. Trouble with using a drill is the motion is in one direction which is bad for lapping valves and will leave scores around the valve and seat due to the paste gathering up in the same scores making them deeper the more you go. You can get valve lap tools that fit in a drill that have the very important back and forth movement.
Love your videos, I can watch them for hours they give me ideas and remind me of things i have forgotten. Thank you
Hi James :-) thank you glad you enjoy em.
Hello John
So I made seals in my apprenticeship for turbochargers and exhaust systems, the copper beautifully soft anneal, which works very well . Thumbs up :-)
Hi Schraubnix :-)
It's amazing how soft copper becomes when annealed, and it goes nice colours :-D
Nice one mate, I my do my r80rt 1983 valves
Hi Jtreg :-) thank you, good luck on your R80RT very similar but on their side, plenty of cleaning after you have finished lapping to get rid of all the paste.
One cheapy way of doing that when your "sucker" isn't holding is to put a bit of hose on the end of the valve stem and hook a drill to it and run it with your drill. It will go much faster than by hand though so you need to be very careful but it will work. ua-cam.com/video/TrKINFBsQD8/v-deo.html
Hi Otis :-)
I have used tube on the valve stem before, but still did it by hand.
Trouble with using a drill is the motion is in one direction which is bad for lapping valves and will leave scores around the valve and seat due to the paste gathering up in the same scores making them deeper the more you go.
You can get valve lap tools that fit in a drill that have the very important back and forth movement.
or you can just flip the switch and turn it one way a bit then back the other :P
wounder if he did the petrol test
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