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Autolite 4300 Carburetor Rebuilding

Started by nightmist67, November 07, 2023, 10:52:33 AM

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nightmist67

Does anyone have recommendations for a reputable rebuilder for Autolite 4300 carburetors?  I had mine rebuilt recently and it came back a leaky mess.

CharlesTurner

Don't know of any good rebuilders, but just did a C8ZF-D myself and it was fairly simple.  What exactly is leaking?
Charles Turner
MCA/SAAC Judge

Coralsnake

#2
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
The original Influencer, check out www.thecoralsnake.com

shelbymann1970

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).
Shelby owner since 1984
SAAC member since 1990
1970 GT350 4 speed(owned since 1985).
  MCA gold 2003(not anymore)
1969 Mach1 428SCJ 4 speed R-code (owned since 2013)

shelbymann1970

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.
Shelby owner since 1984
SAAC member since 1990
1970 GT350 4 speed(owned since 1985).
  MCA gold 2003(not anymore)
1969 Mach1 428SCJ 4 speed R-code (owned since 2013)

CharlesTurner

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.
Charles Turner
MCA/SAAC Judge

shelbymann1970

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?
Shelby owner since 1984
SAAC member since 1990
1970 GT350 4 speed(owned since 1985).
  MCA gold 2003(not anymore)
1969 Mach1 428SCJ 4 speed R-code (owned since 2013)

CharlesTurner

They can be found online or NPD has them.  It's a fairly simple kit, not much in them.
Charles Turner
MCA/SAAC Judge

shelbymann1970

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.
Shelby owner since 1984
SAAC member since 1990
1970 GT350 4 speed(owned since 1985).
  MCA gold 2003(not anymore)
1969 Mach1 428SCJ 4 speed R-code (owned since 2013)