<VV> RE: misaligned enrichment needle

[BobHelt at aol.com]

OK, Guys, 
I located this bulletin Padgett is referring to. And here are the details.

Apparently some early 1965 carburetors did have a problem with the enrichment 
needle sticking in its bore.

You can identify these carburetors by removing the venturi cluster and 
enrichment needle. Then look down the bore of its cylinder. If at the bottom of the 
cylinder, the transition to the small hole is a sloping ramp (they call it a 
funnel), all is well and yours is a revised model carb. But, if that transition 
is essentially a 90 degree step, then you do have a questionable carb as 
referenced.

Chev narrowed the bore and added the funnel for a correction.

Regards,
Bob Helt

In a message dated 9/6/05 6:27:49 PM US Mountain Standard Time, 
gyoungwolf at earthlink.net writes:

> I can confirm that the enrichment needle does not actually get misaligned,
> as it is a tight fit (less than .001" clearance). 

>I can't imagine how that could happen. How can it misalign?
>The needle is captive in its cylindrical chamber and can only go up or 
>down to those limits.

Reference was to Chevrolet Service Bulletin # 3 dated March 18, 1965 and 
signed by R. G. Jordan, Zone Service Manager. entitled "Excessive Fuel 
Consumption - 1965 Corvair with Rochester HV carburetor" and refers to page 
6M-4 fig 8 of the 65 shop manual. It also says that carbs produced after 
"L" had a correction applied.