Woops ... OT

Well , I borked this one up . When cleaning and "rebuilding" my carb , I
turned a screw that I shoodna ... well , getting that spring in the wrong
hole didn't help either .
The patient :
Rochester Quadrajet , attached to a 305 ci GM V8 .
The problem :
Right next to the power valve (primary barrels) is an "adjustment screw" .
Took it out to clean out some of the debris ... and discovered in the
instructions "do not turn the adjustment screw next to the power valve "...
Anybody familiar enough with these to give me a ballpark setting for that
adjustment ? From the location I think it must control the power valve and
metering needles . (Which is where the misplaced spring shoulda went ...)
Another round , hope my plastic lasts !
--
Snag
'90 Ultra "Strider"
'39 WLDD "Popcycle"
Buncha cars and a truck

Terry Coombs wrote:
> Well , I borked this one up . When cleaning and "rebuilding" my carb
> , I turned a screw that I shoodna ... well , getting that spring in
> the wrong hole didn't help either .
> The patient :
> Rochester Quadrajet , attached to a 305 ci GM V8 .
> The problem :
> Right next to the power valve (primary barrels) is an "adjustment
> screw" . Took it out to clean out some of the debris ... and
> discovered in the instructions "do not turn the adjustment screw next
> to the power valve "... Anybody familiar enough with these to give
> me a ballpark setting for that adjustment ? From the location I think
> it must control the power valve and metering needles . (Which is
> where the misplaced spring shoulda went ...) Another round , hope my
> plastic lasts !

OK , now that I'm done panicking ... turns out it's called a part throttle
mixture adjustment , and it can be tuned . And it controls the metering
needles at ... wait for it ... part throttle !
And I learned a lot more about tuning the carb as a whole while looking
that tidbit up on the internet .
Shirley , more drinks !
--
Snag
'90 Ultra "Strider"
'39 WLDD "Popcycle"
Buncha cars and a truck