<VV> moveable timing

[Harry Yarnell]

How do you measure 42°?
Are you using one of those 'variable' timing lights? Is it set to zero?

harry yarnell
perryman garage and orphanage
hyarnell1 at earthlink.net
----- Original Message ----- 
From: "pete" <pwilhelm2 at cogeco.ca>
To: "Virtual Vairs" <virtualvairs at corvair.org>
Sent: Thursday, November 16, 2006 5:20 PM
Subject: <VV> moveable timing


This summer I had a very difficult time maintaining the proper timing on my 
68/110/pg/. It was inconsistent and always pinging, regardless of octane and 
timing.During this period,I blew an exhaust valve[car missed convention,we 
didn't]
   Had the heads repaired,the carbs and distributor  rebuilt, and also 
installed a new Clark's harmonic balancer.This was a smog equipped engine. I 
removed the smog pump and replaced the exhausts.  The carbs and heads are 
the original ones[smog],although as I said they have been rebuilt.
     Once I reassembled the engine,I tried to set the timing and found it 
would not run properly at 12 or 14 degrees. Thinking my timing light to be 
faulty,I asked a fellow Corvair owner to come over to check his light 
against mine. My light was fine. We found that to get the car to run 
smoothly,it must be set to 36 to 42 degrees advance. In addition,the timing 
appears to change between engine start ups;i.e. from 36 degrees and 15 
minutes later it will 42 degrees.
   What could be the root cause? Is something slipping internally?
           Baffled!         Pete
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