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  View original topic: a carb question...
dansan1988 Sat Nov 07, 2009 8:45 am

i have a 1971 super with a solex pict 34 4 carb in it? what engine should that be out of? also i replaced the dist. yesterday, i have an 009 now, but the one i took out wasnt a stock one, it was kinda weird, it didnt really have points like a normal one, but it had like a rotating disc with little magnets and a sensor underneath that. anyone know what kind that is? i think it had 049 on the back...

Rob Timmons Sat Nov 07, 2009 5:14 pm

I believe the 1600's had the 34 pict's on them. The other distibutor had been changed to electronic ignition. This eliminates the need for points.

keifernet Sat Nov 07, 2009 6:25 pm

34 pict - 4 is a California only emissions carb.

borninabus Sat Nov 07, 2009 7:07 pm

keifernet wrote: 34 pict - 4 is a California only emissions carb.
with a tiny main jet

gevmage Sat Nov 07, 2009 9:01 pm

borninabus wrote:
with a tiny main jet

There's a chart of original jet sizes on Bentley page 20. Looking through the 34pict series, the only one that has a substantially smaller main than the others is the 34pict-3 for California 1972-1973, which has 112.5, the rest are either 127.5 or 130. It lists the 34pict-4 as the California carb for 1974 (which makes it a one-year part, I guess, since they all went to FI in 1975, right?) and lists the default main jet as 127.5.

The main difference between the 34pict-4 and the much more common (then and now) 34pict-3 is is the accelerator pump. The accelerator pump parts are different, and there's a key additional part. The 34pict-4 has a thermostatic valve that INCREASES the accelerator pump volume when the carb body is below a certain temperature. That gives more gas through the accelerator pump when the carb is cold, less when it's warm.

glutamodo Sat Nov 07, 2009 11:22 pm

That chart in the Bentley is not very accurate. Try this one I put together instead, it's MS Word doc file:

http://members.trainorders.com/android/temp/CarbBaseFlangeNumbersA.doc

dansan1988 Sun Nov 08, 2009 9:10 am

so does that mean mine is a california beetle? or that they just stuck a different carb on there? because mine is a 71 super. sorry, just a little confused. and in the service manual i got, it was serviced a couple times in south carolina haha. a long ways away.

borninabus Sun Nov 08, 2009 12:15 pm

thanks for setting me straight, gevmage. i was just looking @ that chart & memory served me wrong.

and special thanks to glutamodo. that chart is awsome. archived.



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