SAAC Forum

The Cars => 1968 Shelby GT350/500/500KR => Topic started by: ridgeter on November 17, 2024, 10:54:58 PM

Title: 68 GT500/leaking Holley from secondary bowl
Post by: ridgeter on November 17, 2024, 10:54:58 PM
My 68 GT500 Holley carb developed small leak at bottom of secondary bowl area passenger side - surprise!  It drips right on top of intake where engineering part number is for about fifteen minutes after I turn off engine - about 1/2 oz. The car starts right up, idles smooth and engine strong but strong gas smell after shut off.

Carb was fully rebuilt by reputable shop few years ago but car sat awhile.

What is different? recently had carb tuned and transported from Texas to California. I found small screw sitting on the intake but I'm not seeing any screws missing. 

Wonder if it's simple fix.

Title: Re: 68 GT500/leaking Holley from secondary bowl
Post by: 65cobra on December 19, 2024, 02:22:03 PM
I am guessing you did tighten the screws :)  mine gasket had several cracks in it but I am thinking it was the original gasket from 69 :)
Title: Re: 68 GT500/leaking Holley from secondary bowl
Post by: Coralsnake on December 19, 2024, 03:59:59 PM
There are four small screws on the accelerator pump. They facd the intake manifold.

The gaskets dry out and the bowls leak if not sealed properly
Title: Re: 68 GT500/leaking Holley from secondary bowl
Post by: pbf777 on December 19, 2024, 04:15:54 PM
Quote from: Coralsnake on December 19, 2024, 03:59:59 PMThere are four small screws....................

    Double-Pumper?  :-\

    Scott.
Title: Re: 68 GT500/leaking Holley from secondary bowl
Post by: Coralsnake on December 19, 2024, 05:11:01 PM
Isnt that what the small lever on the bottom of the front bowl called???
Title: Re: 68 GT500/leaking Holley from secondary bowl
Post by: pbf777 on December 19, 2024, 05:13:31 PM
     Yeah, but I thought he said: "a small leak at bottom of secondary bowl"?   :-\

     Scott.
Title: Re: 68 GT500/leaking Holley from secondary bowl
Post by: Coralsnake on December 19, 2024, 05:27:43 PM
You are correct

Never mind 🤪
Title: Re: 68 GT500/leaking Holley from secondary bowl
Post by: FL SAAC on December 19, 2024, 08:27:04 PM
Three words for all your needs

Air
Fuel
Spark

Title: Re: 68 GT500/leaking Holley from secondary bowl
Post by: Special Ed on December 19, 2024, 10:55:58 PM
Acellerator pump gaskets ( front bottom drivers side) usually are the problem with the new fuel unless u use the new(not black) gaskets but try tightening the 8 long fuel bowl screws first.
Title: Re: 68 GT500/leaking Holley from secondary bowl
Post by: ridgeter on December 25, 2024, 04:15:39 PM
Thanks all - leak got worse so letting the pros handle it.
Title: Re: 68 GT500/leaking Holley from secondary bowl
Post by: JohnSlack on December 25, 2024, 06:50:27 PM
Quote from: ridgeter on December 25, 2024, 04:15:39 PMThanks all - leak got worse so letting the pros handle it.

Send it to Drew.
Title: Re: 68 GT500/leaking Holley from secondary bowl
Post by: vtgt500 on December 29, 2024, 05:39:13 PM
Is this what it's come to?  Shipping a Holley carb to fix a flip'n leaky gasket?  No wonder there's so many God-like, automotive reality shows.
Title: Re: 68 GT500/leaking Holley from secondary bowl
Post by: Lincoln tech on December 29, 2024, 05:46:52 PM
Quote from: vtgt500 on December 29, 2024, 05:39:13 PMIs this what it's come to?  Shipping a Holley carb to fix a flip'n leaky gasket?  No wonder there's so many God-like, automotive reality shows.
Somehow I'm Not surprised  :)
Title: Re: 68 GT500/leaking Holley from secondary bowl
Post by: 6s855 on December 30, 2024, 03:29:24 PM
Couldn't get my bowls to stop leaking using various online speed-shop gaskets.  Got a set of gaskets from Drew . . . no more leaks.  Use the man's parts.  Save yourself the aggravation.
Title: Re: 68 GT500/leaking Holley from secondary bowl
Post by: FL SAAC on December 30, 2024, 03:36:03 PM
Quote from: FL SAAC Team Leader on December 19, 2024, 08:27:04 PMThree words for all your needs

Air
Fuel
Spark



That's what this guy said....

Very glad you resolved your issue

Merry Christmas and have a Happy New Year !