Holley Question

Reply Subscribe

Thread Tools

Search this Thread

May 13, 2009 | 09:28 PM

VetteRed1965

Thread Starter

Drifting

Joined: Oct 2008

Posts: 1,901

Likes: 10

From: Woodstock GA

Holley Question

Heres a picture of my Holley.How can I tell what Holley it is?
The secondaries are not opening and I believe that the diaphram for the secondaries needes replacing.

Any help appreciated

Mark

May 13, 2009 | 10:01 PM

Grey Ghost

Le Mans Master

Joined: Jul 2000

Posts: 8,506

Likes: 3

From: Calhoun, GA_______ Let It Rock

Check the numbers on the air horn and post them back.

May 13, 2009 | 10:10 PM

VetteRed1965

Thread Starter

Drifting

Joined: Oct 2008

Posts: 1,901

Likes: 10

From: Woodstock GA

Quote:

Originally Posted by Grey Ghost

Check the numbers on the air horn and post them back.

Am I a newbie...The air horn ?

Thx

May 13, 2009 | 10:22 PM

ricks327

Race Director

Joined: Sep 2005

Posts: 13,860

Likes: 1,870

From: Birmingham Mi

Here is a photo of what Grey Ghost (Jerry) is talking about, sometimes a photo is better than words.
Rick

May 13, 2009 | 10:24 PM

VetteRed1965

Thread Starter

Drifting

Joined: Oct 2008

Posts: 1,901

Likes: 10

From: Woodstock GA

Quote:

Originally Posted by ricks327

Here is a photo of what Grey Ghost (Jerry) is talking about, sometimes a photo is better than words.
Rick

You make it simple.

Thanks, Mark

May 13, 2009 | 10:38 PM

Mike Geary

Melting Slicks

Joined: Nov 2004

Posts: 2,311

Likes: 223

From: Temecula CA

Don't be fooled

the secondaries won't usually open just by revving the engine in the garage. You can test for secondary operation by putting a piece of clay on the intake under the rod, so that movement will leave an imprint. Then take it out for a test drive.

There are different springs available to adjust when the secondaries will come in. They come in a kit of about 6.

May 13, 2009 | 11:58 PM

landshark 454

Pro

Joined: Jul 2008

Posts: 622

Likes: 24

From: Clermont Florida

To test secondaries, with engine shut off, or carb on bench, open throttle wide, and blow compressed air down the right front barrel. This will cause secondaries to open, if they are working.

May 14, 2009 | 02:25 PM

bluester

Instructor

Joined: Apr 2006

Posts: 150

Likes: 2

From: Taylor MI

Holley secondary springs

The Diaphragms don't go bad very often. The carb you have, since it has electric choke and is pretty clean probably isn't real old, it just may have a stiff spring. The springs are color coded for reference, usually the plain silver or purple spring will work fine in a mild street car.