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#1
05-08-2016, 01:20 PM
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solex type 32 air correction jet # 65a
I am reconditioning the carburetors on a newly acquired '59 220S. The air correction jet # 65a (see diagram) appears to be broken off (see picture). The other carb is still on the car and looks the same way. The car was running but the carbs were leaking fuel from the accelerator pumps which is what prompted the rebuild. Should I just leave this jet alone?
John 
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#2
05-08-2016, 03:46 PM
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The brass piece in the middle of the discharge tube appears to be the emulsion tube, rather than the air correction jet. The top of the discharge tube, into which the air jet was screwed, appears to have been broken off, and with it the jet. The jet would look like 65b, visible to the right of the venturi.
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#3
05-11-2016, 03:32 PM
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Same design on old '50s VW Solex carbs. I've seen a bunch of them broken in the same manner. Looks like the air correction tube, the broken piece the emulsion tube and jet go into, is a separate piece on those carbs. I wonder if you could source fresh tubes to install into your carbs. Might have to source some good carbs or some good carb main castings to swap all your parts onto. Not sure how you could make a good repair to what you have.
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#5
05-12-2016, 10:24 AM
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How was the car running before you got into the carbs? Had you noticed any performance issues that could be related to them?
Air correction jets provide a leaning effect to the main mixture from mid to high RPMs, and are used for fine tuning the carbs after you've figured out what main jets to use. With them missing you'll be running pretty lean in the mid to high RPMs, and fine tuning is out the window. I suppose you could install larger main jets to "compensate", but it won't be ideal. With the AC jets missing you really cannot tune the carbs properly at all, at least not for power. I still recommend fixing/replacing your carbs for best results, but you can just clean and put them back on and go with what you got. Dunno, perhaps another member has an idea for how to modify/fix your problem without needing new parts or replacement carbs.
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#6
05-12-2016, 10:57 AM
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Not sure if they fit your carbs:
Emulsion Tube Holder - ************, Classic Parts for Air Cooled Porsche® Google "solex emulsion tube holder benz", and you will find several things worth considering.
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#7
05-12-2016, 12:59 PM
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If the A/C size were known, the top of the emulsion tube could be soldered and then drilled to size.
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#8
05-19-2016, 04:58 PM
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The car had been sitting for quite a while (~3yrs) and was leaking fuel pretty bad from the accelerator pumps and fuel pump. I rebuild the carbs to stop the leaks and found the jets broken off. I found another carb in a 'bucket of parts' that came with the car. Some parts are missing off of it but it does have a jet on it. I could make a 'jet' with the same size opening and bond it to the top of the emulsion tube.
Any thoughts on that plan?? Is there a way to remove/replace the 'holder' that the tube sits in or is it part of the carb body? Thanks for all your help.
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#9
05-19-2016, 06:21 PM
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Quote:
Quote:
The emulsion tube holder appears to be a component of the choke (aka, venturi), #61a in the drawing above. Although it may have been made as a separate piece, once installed in the choke casting it would be considered to be an integral part of the choke.
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