URL: http://www.gowerlee.dircon.co.uk/DGAVtype.html
it is. Much more work to explain than do.

Essentially, you locate the jet holder and unscrew it (accessible from the outside of the carb), then blow through the very small openings (one or two in the sides, one down the centre axis) in the brass jet to clear it.

On a Weber 32/36, the idle jet holder is on the passenger side of the carb body and may be a plain brass style with a slot head (as #9 on above diagram), or could be an idle-cut solenoid which looks like a 1/2" diameter by 1.5" long aluminum cylinder with a spade terminal on the end. On the stock Solex 32/32, it will be a solenoid - also on the pass side (assuming you are not from England, Australia, New Zealand, India, or Japan, etc). The solenoids are sometimes only hand-tight but usually require a 10 to 13 mm wrench.

In both cases the jet itself might need to be removed from the holder to properly clear it out - usually, you can just pull them apart by hand but sometimes very careful use of pliers is needed. As long as you don't damage the tip or deform the body, a few scratches on the sides of the jet are not a problem. Do not use wire to poke around in the jet's centre orifice - that can damage the calibration.

The solenoid itself could be the issue - check the wire to it and make sure it has power when the ignition is on if first cleaning the jet does not solve the problem. Sometimes, they just die - it should click when power is applied. Repair is by replacement but you can also cut the end off the solenoid's plunger to get you going again in a pinch.

A Weber idle-cut solenoid is visible in the this pic, just below center and slightly to the left:

The Solex-style is slightly different.

Good luck.

regards,
Zenon

P.S. The fact that you can drive fine at higher rpms but the engine dies at idle indicates there is enough fuel reaching the carb (idle uses far less fuel), so it is very unlikely to be the fuel pump.

symptoms happened to me back in the later 1980's when I had a 1971 2002 ( 1 barrel Solex ) and it turned out to be the fuel pump. I put on a later style Pierburg mechanical fuel pump, with the correct pushrod for that pump and all was fine but I think cleaning the idle jet(s) is the place to start.

Tim
'69 2000

I had a problem like this as well...and it ended up being the gas tank not venting properly, and the pump having a hard time over coming the vacume in the tank. I vented through the bottom of the trunk and got a gas cap that actually seals and it fixed the problem. It would run fine with the cap off.

something simple to try...

jake

Wow! Thanks for the detailed instructions. They really helped me figure out where to start troubleshooting.

However, it appears that my carburettor, while a Weber 23/36, has an electric choke. Thus, there is no primary jet idler (or at least, it is not where it is shown in the diagram).

Any thoughts on how to proceed? Is it possible to manually inspect or check the fuel pump, or is that something that need to be done with a professional's equipment?

Thanks again for the suggestions!

all have the primary idle jet in the same spot, though the choke mechanism is different and may partly obscure it.

Look again carefully at the passenger side of your carb. You will either see an idle-cut solenoid as visible in the bottom picture, or a plain brass jet holder as in the diagram. Sorry I do not have clearer pictures.

regards,
Zenon

Cool, I'll check again tomorrow. Thanks again for the help, man.

to get an idea of whether the pump is moving an adequate amount of fuel is to splice a transparent fuel filter into the line between the pump and carb - even at idle, the pump should keep the filter at least half full. When the filter is empty, you should see fuel squirt into the filter with every stroke of the pump when the engine is cranking on the starter.

In my case, the problem turned out to be a porous diaphram in the pump - when the engine was cold (or warm and running at 2000 rpm or more), it worked well enough to move enough fuel to keep the engine running - when it was hot and some of the fuel had vaporized in the lines, it couldn't create enough vacuum to pull fuel from the tank.