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View Full Version : weber 32/34 twin choke throttle linkage pics ?



mark69
06-01-10, 11:52 AM
i bought a carb off ebay few months ago but it didnt come with the throttle linkage, so i had to bodge the one off a pierburg 2e and now thats shafted!

can someone show me pics how the standard one it fit etc.......

cheers,:thumb: mark

craig green
06-01-10, 12:02 PM
Why not call up Webcon & buy a proper linkage?

mark69
06-01-10, 12:19 PM
Why not call up Webcon & buy a proper linkage?
im a poor poor man ha
got my dad on with it now :thumb:
hees good at bodges haha
il buy a new one when i get paid.

cheers tho

Southie
06-01-10, 12:22 PM
Is this any good for you? CLICKY (http://images.google.co.uk/imgres?imgurl=http://i271.photobucket.com/albums/jj152/DannyLee_bucket/DMTR/carbfront.jpg&imgrefurl=http://www.clubpolo.co.uk/forum/lofiversion/index.php/t126734.html&usg=__VJkKsszgEIe8UaxnsB3r1TdZzNY=&h=683&w=1024&sz=646&hl=en&start=11&um=1&tbnid=tF6gIREE6-TvnM:&tbnh=100&tbnw=150&prev=/images%3Fq%3Dweber%2B32/34%2Btwin%2Bchoke%2Bthrottle%2Blinkage%26hl%3Den%2 6client%3Dfirefox-a%26rls%3Dorg.mozilla:en-US:official%26sa%3DG%26um%3D1) :thumb:

The Carburettor used in these pictures is a 32/34 DMTR, not a DMTL.

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http://i271.photobucket.com/albums/jj152/DannyLee_bucket/DMTR/carbfront.jpg

Looking at the 'front' of the carburettor;

Fuel Inlet - This is the fuel pipe union through which fuel enters the carburettor.

Fuel Outlet (Blocked Off) - This is the fuel pipe union through which excess fuel leaves the carburettor and drains back to the tank - or this is what I WOULD be saying if this particular carburettor did not have a bung in place of a union. This means that fuel has no circulation out of the carb and this will require a swirl pot to be added to the fuel system, which will be explained. If you DO have a union here, this means that fuel will exit as well as enter the carb, and you will not necessarily need a swirl pot. Why is it blocked off? God knows.

Vacuum Diaphragm - This is a unit which operates by vacuum, which is carried by the pipe which bends 180 from the body of the carb into the external 'saucer'. To be honest, I can't remember exactly what it does, but it'll do you no favours if it isn't working properly. You can do an easy little test to see if it is working properly, explained later.

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http://i271.photobucket.com/albums/jj152/DannyLee_bucket/DMTR/carboffside.jpg

Looking at the 'offside' of the carburettor;

Throttle Cable Holster - This is the throttle cable bracket which I used for my setup. As some adaptor kits to fit weber carbs to standard inlet manifolds do NOT include a bracket to suit, I customised mine in a way which I'll show later.

Manual Choke Linkage - This is a lever which relies on a manual choke cable in order to operate. When the choke is pulled out, this level falls anti-clockwise which not only further closes the choke flap, but also slightly acts upon the 1st stage throttle butterfly by way of the 'cam' on the bottom edge of it, as you can kinda see in the picture.

Throttle Quadrant - Is attached to the 1st stage throttle spindle and is a pretty busy linkage component. This particular quadrant is once again a customised job by way of combining two throttle quadrants into one through some chopping and fitting, but more on that later. The nib on the end of the throttle cable hooks onto the right side, approaching from the left. The screw attached to the top is part of the choke mechanism. This is what contacts the choke cam on the choke linkage, and is adjustable for more or less act on the throttle when you use the choke. If that makes sense.

Airbox Vacuum Stub - This stub comes out from the front of the carb and hooks up to your hot/cold air selector - IF you use one. If you don't (when running a bolt on filter or aftermarket item), then this is blocked off. When connected, the carb will operate the hot/cold air selector to help prevent carb icing.

Vacuum Diaphragm - This is the rest of the vacuum unit mentioned at the front, as seen from the side. The vacuum operates a lever, that's about all I know about it to be honest.

craig green
06-01-10, 12:30 PM
You can just 'T' the return back into the supply pipe. That solves a lot of running problems when people blank off the return as you say.

mark69
06-01-10, 02:37 PM
cheers southie, im guna make one of the pink things haha
and my return is blocked off, was like that when i got it....