DFEV to DFAV, easily done

[wetminkey]

Guess I should post this here,...
32/36 DFEV with water choke,...

So,...DFEV to DFAV, properly.
All I had to do was to superglue the end of an automotive glass fuse onto the end of the spring of a Weber water choke module. It will slip over the DFEV's choke shaft that normally meshes with the DFEV's electric choke module,...

Piece of cake,...

[Rigger178]

That’s very sneaky, I like it. I’ve read a bit about the water chokes on these carbs, and it seems that a lot of folks prefer electric choke even though I would think the water one would more accurately represent the engine temp.
I haven’t chosen the carb I’m going with yet and was wondering if I should stay away from the water choke for any reason,or maybe some pros and cons of either in your experience.

[wetminkey]

Electric choke simply begins with 12V+, and is essentially 'timed' to dis-engage as the element warms (via 12V+),...in a manner unrelated to engine temp, and usually too early. Most new carbs come with them because they DON'T LEAK (unlike a neglected water choke) and are really inexpensive (mostly a piece of plastic).
A manual choke is a much better option, but it MUST be attended to, and neglect can cause an overly rich mixture (or lean, if forgotten), and the engine problems related to those conditions,...also requires a cable into the car, and a mounting for that.
The water choke is probably the best, in my opinion, because the choke remains active as the engine temp changes. And it will do that no matter how much attention the driver is paying to engine performance. Once adjusted properly, it will not engage too much, or too little, throughout the temp range. Nobody likes the extra coolant hoses,...but I doubt that most enjoy blocking off the heater-pipe outlet or the manifold outlet (or both) for the e-choke, or manual choke.
Armed with these facts, you can make a good decision for your new carb's choke.
Have fun driving! Todd.

[Rigger178]

Thanks for the reply. Very informative. It seems for my application a water choke would be best. I’ve got a 34dmsa that is manual choke and it appears that I can’t adapt a water choke to it unless a small miracle happens, so I’ll opt for one of the others.
Thanks again.

[manoa matt]

Do you think that superglue is going to stick to smooth stainless steel, and hold during repeated heating and cooling cycles? I would take a small cut off wheel on a dremel and cut a slot in the end of the choke shaft to interface with the coil spring.

[wetminkey]

The stuff that I used is called "Zap-A-Gap" and I doubt that it will fail, considering the temps involved.
Idiot, me,...the PROBLEM is, that the DFEV and ADHA chokes travel in exact opposite directions, and the choke springs do too!
A minor setback. Used a small screwdriver to tap into the slot of the aluminum 'clamp' that secures the center of the water choke spring,...each side, a little at a time, until the spring was loose. Lifted it out and reversed it - used some pliers to squeeze the aluminum 'clamp' closed. Works perfectly, and adjusts constantly to engine temperature.