Hi guys, merry christmas for alls! Not idle on holley 1920, but if i close the idle air bleed the idle comeback. This problem is not permanent.

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Aspen 79 Holley 1920 HEI
Aspen 80 Super Six

Carburetor operation and repair manuals and links to training movies and carb repair/modification threads are posted here for free download.

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一期一会
Too many people who were born on third base actually believe they've hit a triple.

Thanks Dan. The carburetor was a rebuild, but the idle system not working. This carburetor it´s very easy to rebuild, i dont understand the problem. The problem is not permanent and the main metering system works very well..

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Aspen 79 Holley 1920 HEI
Aspen 80 Super Six

Any idea, please

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Aspen 79 Holley 1920 HEI
Aspen 80 Super Six

Transient problems like this suggest there's dirt or corrosion in some of the very small idle passages in your carb. You may want to try using a spray can of carburetor cleaner to backflush the two idle air bleeds (one small and one tiny) that face the sky; you can see them on the front wall of the carb throat once you remove the air cleaner.

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一期一会
Too many people who were born on third base actually believe they've hit a triple.

Thanks Dan. The idle system has a idle well (i saw in the pdf and in the carburetor) and in my carburetor he moves to top and bottom. is normal ?? Sorry for my inglish

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Aspen 79 Holley 1920 HEI
Aspen 80 Super Six

I'm not sure what part you mean by "idle well". Can you show us in one of the pictures?

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一期一会
Too many people who were born on third base actually believe they've hit a triple.

Dan the part is a brass tube on the galosine pass to the main jet to idle system.

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Aspen 79 Holley 1920 HEI
Aspen 80 Super Six

SL6 CHILE,

On page 13 of the 1920 manual, figure 6 shows a picture of the idle well. You can pull the screws holding the economizer body (see figure 8a) in place and clean out the passage way with a piece of 10 to 12 pound nylon fishing line and blow it out with carb cleaner. If that doesn't work and you hit a some blockage use a guitar string. That should clear up your problem.

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Aggressive Ted

http://cid-32f1e50ddb40a03c.photos.live ... %20Swinger


74 Swinger, 9.5 comp 254/.435 lift cam, 904, ram air, electric fans, 2.5" HP2 & FM70 ex, 1920 Holley#56jet, 2.76 8 3/4 Sure-Grip, 26" tires, 25+MPG

That brass tube should not move. It should be solidly fixed in place.

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一期一会
Too many people who were born on third base actually believe they've hit a triple.

Hi guys, good news! I clean the economizer body and the slant works perfect. Thanks for your help. Greetings from Chile

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Aspen 79 Holley 1920 HEI
Aspen 80 Super Six