Holley 950 Double Pumper Corb - Hot Rod Forum : Hotrodders Bulletin Board
Hotrodders.com -- Hot Rod Forum

Register FAQ Search Today's Posts Unanswered Posts Auto Escrow Insurance Auto Loans
Hot Rod Forum : Hotrodders Bulletin Board > Tech Help> Engine
User Name
lost password?   |   register now

LinkBack Thread Tools
  #1 (permalink)  
Old 04-19-2004, 03:34 PM
rayfox's Avatar
Registered User
Join Date: Jul 2003
Location: Atlanta
Age: 75
Posts: 1
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Holley 950 Double Pumper Corb

Have a S-10, 350, 202 heads, 289 cam with 950 carb. Elect fuel pump went out, replaced W/Holley Black, reg set at 7 psi. Old pump was a Holley Red. Black will pump more Volume. Turned on started and ran fine. Few days later, turned on switch and went to carb to check preasure, went back and would not start. Looked back at carb and mucho fuel, coming out of back top of front bowl. Result, hydro lock, turned out to be #5 cyl full of trapped fuel. Pulled plug and reinstalled. Started right up and ran fine. Is pump volume too much? Did a valve in carb fail? Is this too long and you fell asleep reading? Any suggestions, Thanks rayfox

Reply With Quote Quick reply to this message
Sponsored Links
  #2 (permalink)  
Old 04-19-2004, 03:45 PM
camaroman7d's Avatar
Last photo:
Join Date: Dec 2003
Location: Vacaville, California
Age: 49
Posts: 2,246
Wiki Edits: 0

Thanks: 3
Thanked 10 Times in 10 Posts
You might want to try a slightly lower pressure with the added volume. If you do not have a return line this might have something to do with it.

One other thing to check is your float level, when changing pumps/pressure/volume this can effect your float level.

Trash on the needle will also cause the symptoms you saw. It only takes a tiny piece and since you just replaced your pump, if you have rubber line and a barbed fitting there is a VERY good chance a small piece of rubber from inside the hose made it's way to the carb (needle and seat is where you would find it).

Reply With Quote Quick reply to this message
  #3 (permalink)  
Old 04-19-2004, 07:45 PM
1BAD80's Avatar
The Smell of Nitro in the morn
Last wiki edit: How to adjust valves Last photo:
Join Date: Jun 2001
Location: Mich
Posts: 2,423
Wiki Edits: 2

Thanks: 0
Thanked 3 Times in 2 Posts
I agree with Royce.
Luv the smell of NITRO in the morning.
Reply With Quote Quick reply to this message

Recent Engine posts with photos

Quick Reply

Register Now

In order to be able to post messages on the Hot Rod Forum : Hotrodders Bulletin Board forums, you must first register.
Please enter your desired user name (usually not your first and last name), your email address and other required details in the form below.
User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:
Please select your insurance company (Optional)


Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools

Posting Rules
You may post new threads
You may 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
Trackbacks are On
Pingbacks are On
Refbacks are On

All times are GMT -6. The time now is 06:36 AM.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0 PL2
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Copyright Hotrodders.com 1999 - 2012. All Rights Reserved.