The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > 47 - Current classic GM Trucks > The 1967 - 1972 Chevrolet & GMC Pickups Message Board

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 10-03-2016, 09:03 PM   #1
Mrturner1
Registered User
 
Join Date: Nov 2015
Location: Colfax California
Posts: 1,644
Holley fuel leak

I think I found another contributor to my carb issues lately. It's a brand new 750 dp so I don't know why it would be leaking but it is. It's leaking from the very front, where that little arm is that presses on the carb to shoot more fuel, by the red spring. Sorry it's my first Holley I have no idea what it's called lol
Mrturner1 is offline   Reply With Quote
Old 10-03-2016, 09:05 PM   #2
Mrturner1
Registered User
 
Join Date: Nov 2015
Location: Colfax California
Posts: 1,644
Re: Holley fuel leak

Here's where it's coming from
Attached Images
 
Mrturner1 is offline   Reply With Quote
Old 10-03-2016, 09:06 PM   #3
Mrturner1
Registered User
 
Join Date: Nov 2015
Location: Colfax California
Posts: 1,644
Re: Holley fuel leak

Under this corner
Attached Images
 
Mrturner1 is offline   Reply With Quote
Old 10-03-2016, 09:11 PM   #4
firedemon
Registered User
 
Join Date: Jun 2015
Location: @
Posts: 890
Re: Holley fuel leak

the accelerator pump try and tighten the screws if not need new pump
firedemon is offline   Reply With Quote
Old 10-03-2016, 09:20 PM   #5
GASoline71
"I ain't nobody, dork."
 
GASoline71's Avatar
 
Join Date: Sep 2007
Location: Whidbey Island, Washington
Posts: 8,948
Re: Holley fuel leak

The diaphragm itself seals the pump as it is sandwiched between the pump housing and the fuel bowl.

Just check to see if the screws are a tad loose. Don't get crazy and over tighten them. You strip out a hole and you're in for a new fuel bowl.

Gary
__________________
'cuz chicks dig scars...

My 1972 GMC 1500 Super Custom (Creeping Death) "long term" build thread.

The Rebuild of Creeping Death after the wreck

Quote:
Originally Posted by LONGHAIR View Post
I would never rebuild a 305.
Quote:
Originally Posted by prostreetC-10 View Post
I love using vacuum gauges as part of the carb tuning process. I hook the gauge to the inside of my garbage can and leave it there.
Quote:
Originally Posted by Marv D View Post
Remember Murphys 2nd law of mechanical relationships... "OPPOSING COMPONENTS ATTEMPTING TO OCCUPY THE SAME SPACE, AT THE SAME TIME, GENERALLY END UP OCCUPYING ADJOINING SPACE AT THE BOTTOM OF THE OIL PAN"
Quote:
Originally Posted by cableguy0 View Post
Its cheaper to listen to advice given when you ask for help than it is to ignore everyone and wait for carnage.
GASoline71 is offline   Reply With Quote
Old 10-03-2016, 09:31 PM   #6
Mrturner1
Registered User
 
Join Date: Nov 2015
Location: Colfax California
Posts: 1,644
Re: Holley fuel leak

Quote:
Originally Posted by firedemon View Post
the accelerator pump try and tighten the screws if not need new pump
Quote:
Originally Posted by GASoline71 View Post
The diaphragm itself seals the pump as it is sandwiched between the pump housing and the fuel bowl.

Just check to see if the screws are a tad loose. Don't get crazy and over tighten them. You strip out a hole and you're in for a new fuel bowl.

Gary
Cool thanks you guys I'll check it out and report back.
Mrturner1 is offline   Reply With Quote
Old 10-04-2016, 11:32 AM   #7
davepl
Registered User
 
davepl's Avatar
 
Join Date: Aug 2006
Location: Redmond, WA
Posts: 6,332
Re: Holley fuel leak

Check the gasket if it still leaks after tightening, could be folded or torn. If the gasket is fine and it still leaks, likely the diaphragm as a guess.
__________________
1970 GMC Sierra Grande Custom Camper - Built, not Bought
1969 Pontiac 2+2 427/390 4-speed Coupe
1969 Pontiac 2+2 427/390 4-speed Convertible
davepl is offline   Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 09:45 AM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright 1997-2022 67-72chevytrucks.com