[alfa] Grinding valve stems

[Michael Findlay <michael@xxxxxxxxxxxxxxxxxx>]

A couple of questions regarding grinding Alfa valve stems to achieve 
clearance after a valve job. I have my 1750 head at a reputable engine 
shop in Dunedin, New Zealand. They suggest that it is okay to shorten 
the valve stem. I passed on the standard warning about sodium-filled 
valves and there was a bit of head scratching. They have never heard of 
a valve blowing up and I would guess that there is a reasonable amount 
of material at the top of the stem so that they will not breach the 
internals. However, is this good practice? Does it affect the hardening 
of the valve stem? How much can be removed?

Michael Findlay
1971 1750 GTV 
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