That fitting connects to the tube on the exhaust manifold. It doesn't
really connect to the exhaust gas, it passes straight through the manifold
and as the engine warms up it heats the air inside the tube. This in turn
heats the BI-Metal spring inside your choke housing which then opens the
butterfly automatically. I don't ever remember seeing this set-up on a I6,
but do know they are this way on the V8's.
Hope this makes sense....
Mike Boteler
'56 4400 Stake
'56 6400 Stake
'56 8400 Wrecker
'56 9200 Tractor w/Powermatic
'57 10500 Fire Truck
Hughesville, MD
----- Original Message -----
From: "Antonio R. Tijerino" <antonio@tijerino.net>
To: "Oletrucks@Autox.Team.Net" <oletrucks@autox.team.net>
Sent: Saturday, April 12, 2003 11:30 AM
Subject: [oletrucks] Rochester carb info
> I have a 235 '55 car engine in my '53 Chevy truck. I am pretty much ready
to
> start the engine after while. When I got the engine, it came with a
> Rochester carb that has built-in auto choke, now the question that I have
> is: I noticed that right below the area where the choke mechanism (mix
> adjustment dial) is located (6 o'clock) there is like treaded pipe nipple
> sticking out. This is not for vacuum, does anyone know what this is for?
>
> Thanks,
>
> Antonio
> oletrucks is devoted to Chevy and GM trucks built between 1941 and 1959
oletrucks is devoted to Chevy and GM trucks built between 1941 and 1959
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