engine and drivetrain Weber 40 Sidedraft question

[bigfoot]

I have a set of weber 40's on my car, the problem is the chokes, or starting circut. I disassembled them to put in a rebuild kit they are working fine except the chokes.

When I pull the choke it stalls the motor immediatly, unlike before when I pulled the choke it nicely increased the rpm. I'm wondering if anyone has any idea what I did wrong and where I should begin to solve this problem.

Thanks

[TobyB]

I have to admit, I've never messed with them except to make sure they aren't leaking.  Bekuz racekarr....

 

"immediately dies" sounds like they're either dumping a ton of fuel, or leaking a ton of air.

As long as the pistons are synchronized, there's not a ton that can go wrong with them if

they're moving up and down with the linkage.  The linkage inside the carb's a bit

low- quality- is it possible you bent something, or got one of the lifting fingers on the wrong groove in the piston?

 

t

 

[zob2002]

Hello,

You don't need chokes on 40 or 45 DCOE's. They start so easy that I never used the chokes. Even in cold weather conditions they tend to give too much fuel and are just not needed...

I built about 3 DCOE engines for myself and friends and never put a cable at the choke. 

Best regards,

Tom

[TobyB]

Spoken like a true Californian...

 

If a 40/45 is tuned right, in colder climates the choke circuit makes life a lot easier on a street car.

 

t

 

[bigfoot]

Cold or warm weather if the car has not run for a couple days it requires lots of peddle pumping to get it started. Before I messed with it it just fired right up

with a bit of choke. Thanks for the input when get around to it I'll try a few things out hopefully it's a simple fix.

Cheers Erich

[Hans]

I find using the chokes makes starting much easier than whanging away on the gas peddle. A few turns, it fires cleanly. I had to run a universal choke cable around the front to get the arms pulling in the right direction. California might be a different situation.