Cliff's Quadrajet Parts and Rebuild Kits

Quadrajet Problem Solving => Diagnose a Quadrajet carburetor problem => Topic started by: Gio_84 on March 11, 2022, 01:50:25 PM

Title: Choke play
Post by: Gio_84 on March 11, 2022, 01:50:25 PM

Hi guys
please look at this video and please tell me if this could be a problem or it is a common situation.

https://youtu.be/1b3lnGMXF-c

tanks
Gio

Title: Re: Choke play
Post by: quadrajam on March 11, 2022, 06:08:10 PM

Seems odd but it's normal.

Title: Re: Choke play
Post by: Kenth on March 12, 2022, 12:30:25 AM

Use a 1/8" pin gauge:

Title: Re: Choke play
Post by: Gio_84 on March 12, 2022, 01:35:02 PM

I already have followed the choke setting procedure. when engaged, with engine cold, the flap is firmly in place and completely closed.
the play is due to the holes that are larger than the rod. is this because of the wear?
was like this also when it was new?
Thanks

Title: Re: Choke play
Post by: quadrajam on March 12, 2022, 06:16:41 PM

It was made like that. After the engine cranks the choke pull-off
takes a little bit of choke off. The slot allows the choke blade to
crack open  a little more commensurate with engine air flow.
It's kind of a balance. Very clever design.

Title: Re: Choke play
Post by: Kenth on March 13, 2022, 10:30:23 AM

Quote from: Gio_84 on March 12, 2022, 01:35:02 PM

I already have followed the choke setting procedure. when engaged, with engine cold, the flap is firmly in place and completely closed.
the play is due to the holes that are larger than the rod. is this because of the wear?
was like this also when it was new?
Thanks

Your video shows you´ll have to bend the rod some to keep the chokeblade fully closed when choke is fully engaged.

FWIW

Title: Re: Choke play
Post by: Gio_84 on March 14, 2022, 03:11:27 PM

thnks for your reply

https://youtu.be/vaBGuQ1nFKg

as you can see here, when engaged the flap is blocked.

the play come when the flap is open.

Title: Re: Choke play
Post by: 77cruiser on March 14, 2022, 04:20:40 PM

What's it look like when hot?

Title: Re: Choke play
Post by: quadrajam on March 14, 2022, 07:03:10 PM

Push that counterweight/lever down and hold it. Don't let up.
That will simulate the bimetallic coil opening force when
totally warmed up Then there will still be a little bit of choke
flap looseness.The choke flap doesn't hard open it will always
rattle just a bit.

Title: Re: Choke play
Post by: Kenth on March 15, 2022, 07:02:56 AM

QUADRAJAM is correct, not a problem, it is part of the design.

Title: Re: Choke play
Post by: Gio_84 on March 15, 2022, 03:02:19 PM

Quote from: QUADRAJAM on March 14, 2022, 07:03:10 PM

Push that counterweight/lever down and hold it. Don't let up.
That will simulate the bimetallic coil opening force when
totally warmed up Then there will still be a little bit of choke
flap looseness.The choke flap doesn't hard open it will always
rattle just a bit.

here we are

https://youtu.be/Kqi5zkHld4I

Title: Re: Choke play
Post by: Kenth on March 21, 2022, 01:39:29 AM

Quote from: 77cruiser on March 14, 2022, 04:20:40 PM

What's it look like when hot?

That´s what i would like to see, too.

Title: Re: Choke play
Post by: Gio_84 on April 16, 2022, 01:58:05 PM

Hi guys

https://youtu.be/V6QmhGfOFHw

here you can see the engne warm up

sorry for the audio quality but it was very windy this afternoon..