[NoVa-Corvairs] NoVaCC Meeting Tomorrow Is ON!

[Darrin Hartzler]

Curt,

The car is running great...both problems solved!  Excellent pit crew 
work...thanks for staying a bit overtime.

As to the turbo head.  I am going to go ahead and CC the chambers and 
calculate the compression for each of those cylinders and then talk to the 
experts (you guys) about whether or not the difference in volume and 
compression will make a difference on the running engine.  One possibility 
is to remove the same amount of material from each of the chambers, but 
then I would have to remove the other head and do the same.  The total 
volume of material removed may be irrelevent.

 I did manage to replace the two damaged valve guides from that chamber 
and now have to get a tool to ream those guides just a bit (first time I 
have had an automobile head in our kitchen oven...another first!).  I 
heated the head and froze the guide and then drove it home with some moly 
grease applied to the guide.  The guide was .002 oversize so each guide 
took a very thin sliver of aluminum along with it...they should be good 
for a long time.   Once I ream the guides and get the valves in place, I 
will lap the valves/seats to a perfect seal (the seats look great and seal 
surfaces on the valves are excellent).  At that point I can go ahead and 
CC them to see what I have wrought.

Does that make sense?

In any case, this constitutes great fun for me as I have never replaced 
valve guides or valves before...much less calculated final compression 
ration, lapped valves, etc.   I guess the success on the Camaro (however 
fraught) has emboldened me a bit.

Darrin

-----------------------------------------
Darrin R. Hartzler
Senior Corporate Governance Officer
International Finance Corporation
Washington, DC
Phone: +1-202-473-0027
Fax: +1-202-522-1604
Office: F4K-144
e-mail: dhartzler at ifc.org



Curtis L Shimp <clshimp at juno.com> 
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11/21/2005 08:52 AM
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Darrin:

So, how stands the project?

By the way, I was thinking about the nicks in the turbo head.  Can you
get some one to heliarc a bead of aluminum over the nicks and then grind
the whole thing smooth?  Maybe it is not worth the time and money!

                                                                 Curt
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