<VV> 67 Monza 110 PG - Initial carburetor idle adjustment screw setting ?

[Charles Lee]

Looks like my setting were on target, according to the manual - 1 1/2
turns out on the idle mixture screw.

However, the valves were initially 'cold adjusted' after
re-installation, with the engine off according to the manual, and I
believe that each rocker should now be backed out 'until it clatters'
and then turned back in 1/4 turn ?

I remember doing it this way, after a Chevy dealer adjusted them (a
different Corvair) and I had to do it again on my way home on the side
of the road. 

(I complained to the service manager that the valves didn't sound right,
and he said it had to warm up.  It did 'warm up' - and died - after the
dealer closed and went home.)

I'd also like them to be quieter, so that I can hear any other noises
that may be a problem ?

Lots of work still to do.

The body is solid, especially trunk and floors, and I'd like it to be
right (eventually) - not a show car, but fairly nice.

Time to start hitting swap meets !

Thanks everyone !
Charlie


-----Original Message-----
From: Bryan Blackwell [mailto:bryan at skiblack.com] 
Sent: Thursday, October 09, 2008 7:41 AM
To: Charles Lee
Cc: 'Virtual Vairs'
Subject: Re: <VV> 67 Monza 110 PG - Initial carburetor idle adjustment
screw setting ?


A few thoughts inline:

On Oct 8, 2008, at 8:04 PM, Charles Lee wrote:

> What is the initial setting for the carburetor idle adjustment screw,
> for an engine that has not run for about 7 years ?

Well, run 7 years or 7 days ago it's the same.
>
> The carbs are new, but I don't know if the settings are correct.
>
> I turned one (left side) in to close it (gently) and then turned the
> right side in until she tried to stall, then back out to run without 
> stalling.
>
> I then did the same for left side (without changing the right side).
>
> I think they are now both at minimum running fuel/air ratio, but I 
> can't find any settings in the GM manual.

Not bad, you want it lean as long as it will idle smoothly.  There  
are initial settings in the tune up section of the shop manual (I  
don't recall the exact page, sorry).
>
> I want to get this done quickly, since I'm getting asphyxiated with 
> the fumes.

Important to note - you will never get it like a new car.  EFI and  
catalytic converters really clean up the exhaust.  Any older car will  
always have some smell to the exhaust.
>
> Progress report :
>
> Brakes pumped up from being right to the floor, up to about 2" play,
> after about 40 pumps on the brakes, and replacing the fluid, which may

> need replacing. Shoes and drums next.
> The engine is a little noisy, so I guess a 'warm adjust' is on my  
> to-do
> list.

No!  Run it for at least 30 minutes - preferably drive it - before  
you touch those valves.  Corvair valves do not need adjusting in  
normal use.

--Bryan

Bryan Blackwell bryan at skiblack.com
http://autoxer.skiblack.com/
   Corvairs: '61 Lakewood, '64 Greenbrier, '65 Corsa, '66 Corsa
   '69 Road Runner, '97 Ford F-150, '99 Neon R/T
"Why do something if you're not going to obsess about it?"