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Lovely job on those copper intake runners.---Brian
I've been hearing that "fill your tubes with sand" song for 73 years. It never worked for me. I think that is an urban myth.
Pete,I just thought I'd throw this out there. When I made my Upshur single I modified the valve guide so compression pressure couldn't push it out. That made it shorter and harder to center in the bore. I used a sharpie to see if the guide was in line with the valve. Put the marker on the head at the valve face, spin the valve in the guide, you can at least tell, the shiny spot is where the valve is in contact with the head, the broader the more the valve is in contact. In my case I had to tap the guide into position, I doubt yours is so complicated. A quick and easy way to see how much of the valve is seating.Art
I should have made clear, that I'm not sure my fathers result would have been considered a success for our use here - sorry ....
2019-09-05 04:08 China, Shenzhen, Departure from country of origin. Your item is in transit to New Zealand