[Shotimes] adjusting valve lash by machining valve stems

[Ian Fisher]

I wanted to get the list's opinion on shimming valve
clearances by actually machining down the valve stem
instead of replacing shims. This was provided to me as
an alternative method today. It sounded horrific at
first but now that I think about it it doesn't seem
like a bad idea. The clearances can be adjusted more
accurately without the need to purchase any shims. The
valve would still open and close normally...

My only issue is that I am installing +20's into my
soon to be rebuilt heads. If I have the valves
adjusted for those, I wouldn't be able to swap back to
stock or +40's without using shims. Hopefully the
shims could make up the difference.

I'm also installing bronze valve guides. The shop is
going to machine the valve seats as well to make sure
they are as good as they can get. They said that
machining the seat will also tighten up my valve
clearances. Interesting..

comments? 

Ian



		
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