<VV> compression test

[Harry Yarnell]

Harder to find zero lash? If you can't find zero lash, you've got no
business adjusting valves.
He didn't mention replacement lifters, SO I assumed OEM lifters....and
adjusting valves on a Corvair running, is just plain sadistic.

I'm going back to the garage now and adjust a four cam Northstar...cold.


-----Original Message-----
From: Mark Durham [mailto:62vair at gmail.com] 
Sent: Saturday, October 15, 2011 1:39 PM
To: Harry Yarnell; Bruce Alexander; virtualvairs at corvair.org
Cc: judynrandy at comcast.net
Subject: RE: <VV> compression test

Harry, you may be expert at setting valves cold, but most don't have
the expertise to do so. I did my engine that way when building it up,
but its less accurate once the lifters have pumped up and seated,
because its harder to find that zero lash position. And, unless the
lifters are NOS 60's vintage setting the lash at one turn will do
exactly the problem Bruce had in the first place as newer lifters
should be adjusted no tighter than 1/2 turn. The newer lifters are
designed differently internally and have less to play with in
adjustment. Mark Durham

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