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Member postings for oscar blauman

Here is a list of all the postings oscar blauman has made in our forums. Click on a thread name to jump to the thread.

Thread: STEAM ENGINE VALVE LEAKS
19/05/2020 08:19:44

I have just completed a Stuart N1 engine which works well under compressed air.

It does leaks considerably when the valve position is such that I would not expect any air to come out from the exhaust. I did spend considerable time polishing both the cylinder wall and the valve bronze sliding part, they are almost mirror like now, without any measurable difference. I would like to know how good of a seal the valve should make to be considered good enough and if there is something else I should be looking at other than the good mating of the surfaces, thanks oscar.

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