SAAC Forum

The Cars => 1969-1970 Shelby GT350/500 => Topic started by: nightmist67 on November 07, 2023, 10:52:33 AM

Title: Autolite 4300 Carburetor Rebuilding
Post by: nightmist67 on November 07, 2023, 10:52:33 AM
Does anyone have recommendations for a reputable rebuilder for Autolite 4300 carburetors?  I had mine rebuilt recently and it came back a leaky mess.
Title: Re: Autolite 4300 Carburetor Rebuilding
Post by: CharlesTurner on November 07, 2023, 11:07:18 AM
Don't know of any good rebuilders, but just did a C8ZF-D myself and it was fairly simple.  What exactly is leaking?
Title: Re: Autolite 4300 Carburetor Rebuilding
Post by: Coralsnake on November 07, 2023, 11:21:17 AM
I had Tim Lancaster rebuild my 1969 carburetor and was very happy.

You can find his contact information here:

http://www.thecoralsnake.com/1969Carb.html

He ran the carb on an engine and I have no issues
Title: Re: Autolite 4300 Carburetor Rebuilding
Post by: shelbymann1970 on November 07, 2023, 02:00:12 PM
I've have had trouble more than once with the float sticking. They lleak because of the squirting design. My best answer to my carb woes was installing a 69 C9AF U CJ carb on my engnie 5 years ago. Zero issues now. Yeah ,it isn't concours correct but a bolt in swap other than a choke tube but an easy swap with that also. I can change out in 5 minutes if need be.
Thanks Pete for the heads up as my Autolite 4300 carb rebuilder was Mike R so after he passed my carb screwed up so it was replaced with a U rebuilt by Mike.  Mike explained why these 4300 carb were a POS design(cost savings).
Title: Re: Autolite 4300 Carburetor Rebuilding
Post by: shelbymann1970 on November 07, 2023, 02:01:08 PM
Quote from: CharlesTurner on November 07, 2023, 11:07:18 AM
Don't know of any good rebuilders, but just did a C8ZF-D myself and it was fairly simple.  What exactly is leaking?
Last time I went through my 4300 the kit was easily available but not sure it is now. It was 20 bucks.
Title: Re: Autolite 4300 Carburetor Rebuilding
Post by: CharlesTurner on November 07, 2023, 03:26:49 PM
Quote from: shelbymann1970 on November 07, 2023, 02:01:08 PM
Last time I went through my 4300 the kit was easily available but not sure it is now. It was 20 bucks.

Still available, with updated ethanol compatible parts.
Title: Re: Autolite 4300 Carburetor Rebuilding
Post by: shelbymann1970 on November 16, 2023, 12:18:32 PM
Quote from: CharlesTurner on November 07, 2023, 03:26:49 PM
Quote from: shelbymann1970 on November 07, 2023, 02:01:08 PM
Last time I went through my 4300 the kit was easily available but not sure it is now. It was 20 bucks.

Still available, with updated ethanol compatible parts.
Where do you get your kit from?
Title: Re: Autolite 4300 Carburetor Rebuilding
Post by: CharlesTurner on November 16, 2023, 10:39:18 PM
They can be found online or NPD has them.  It's a fairly simple kit, not much in them.
Title: Re: Autolite 4300 Carburetor Rebuilding
Post by: shelbymann1970 on November 17, 2023, 06:56:30 AM
Thanks. I've bought kits from local auto parts stores but not in a while. Back then they were not ethanol kits. I'll look up the NPD kits.