Valve sealing?
I've got the cylinder head off on the bench (see previous thead). I've checked the valve seating by pouring petrol in through the ports to see if it leaks through. It does, but only a small amount. If you pour the petrol in, after about 5 seconds there is a slight wettening of the edge of the valve as seen from the combustion chamber side.
I'm sure it ought to be 100% fuel-tight, but this seems reasonable, or does it? I don't want to regrind the valves unless I have to, but now would be a good time if it was necessary.
Any thoughts or comments welcome.
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