carb percolation? - 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
Password
lost password?   |   register now

Reply
 
LinkBack Thread Tools
  #1 (permalink)  
Old 04-11-2005, 08:06 AM
New Member
 
Join Date: Apr 2005
Location: new york
Posts: 22
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
carb percolation?

I have a 55 chevy and am running a 400sbc, edelbrock 1405 carb(with heat insulator),edelbrock fuel pump, braided hose, etc.I drive about 2 miles and it starves and stalls. I open the hood wait about 5 minutes and it will start again. Any suggestions?

    Advertisement
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2 (permalink)  
Old 04-11-2005, 11:52 AM
Member
 
Last photo:
Join Date: Mar 2003
Location: Bakersfield, CA
Posts: 397
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Fuel pressure?
Is your fuel line too close to headers/exhaust?
Did you check your fuel filter?
Did you check your carb fuel filter?
Reply With Quote Quick reply to this message
  #3 (permalink)  
Old 04-11-2005, 02:44 PM
Rhansen's Avatar
Footbraker
 
Last photo:
Join Date: Jan 2004
Location: Davenport, Iowa
Age: 45
Posts: 585
Wiki Edits: 0

Thanks: 3
Thanked 5 Times in 5 Posts
My 1406 carb used to have heat sink problems, tried a heat diffuser with no luck. I ended up making a 4 hole spacer from some pine wood using one of the diffuser plates as a template - problem solved.
Definitely check the fuel line to see if it's picking up heat along the way since you already have an insulator.
Reply With Quote Quick reply to this message
  #4 (permalink)  
Old 04-11-2005, 03:16 PM
club327's Avatar
Member
 
Last photo:
Join Date: Nov 2003
Location: australia
Age: 50
Posts: 334
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Should'nt be through excessive heat after only 2 minutes driving. When it happens, see if any fuel pumps into the carb venturis when opening the throttle. You could have a sticking needle and seat. Also make sure your engine's crankcase is vented to the atmosphere, and not just fitted with a PCV on its own as this would create full crankcase vacuum, which would act on the fuel pump's diaphragm and stop it from pumping. Like the others, check your filters for garbage.
Reply With Quote Quick reply to this message
  #5 (permalink)  
Old 04-11-2005, 05:01 PM
New Member
 
Join Date: Apr 2005
Location: new york
Posts: 22
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Thanks Darom.R Hansen and Club327

Thanks
Darom,Rhansen,club327-I'll give them a try and let you know what happens.
I just got back into hot rodding after a thirrty year layoff and never encountered this.

Thanks again,
Bill cherry
New York
Reply With Quote Quick reply to this message
  #6 (permalink)  
Old 04-12-2005, 01:47 AM
bracketeer's Avatar
489 Lemans
 

Last journal entry: Street Legal
Last photo:
Join Date: Dec 2004
Location: Courtenay, BC, CehNehDeh
Age: 55
Posts: 2,139
Wiki Edits: 0

Thanks: 0
Thanked 1 Time in 1 Post
vacuum

You could be pulling a vacuum on your gas tank. Try running with the gas cap off. If it works. Buy a keyed gas cap. The keyhole acts as a vent.

If you are perculating the carb should be hot to the touch. You should also see gas dribbling down the carb from the shooters.
__________________
[URL]http://members.shaw.ca/g.body.building[/URL]
Reply With Quote Quick reply to this message
  #7 (permalink)  
Old 04-12-2005, 07:23 PM
New Member
 
Join Date: Apr 2005
Location: new york
Posts: 22
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Thanks

Bracketeer ,
thanks for the sdvice . I'll let you know what happens.
Bill C
Reply With Quote Quick reply to this message

Recent Engine posts with photos

Quick Reply
Message:
Options

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:
If you do not want to register, fill this field only and the name will be used as user name for your post.
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

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


Similar Threads
Thread Thread Starter Forum Replies Last Post
Holley 4777 carb. questions. TVR383 Engine 16 07-05-2009 02:23 PM
I'm going to make a bonfire out of my car blown69stang Engine 36 08-22-2005 03:36 PM
Broken ear (flange) on Holley carb ford302 Engine 12 01-04-2005 03:09 PM
Edelbrock Carb Chadman Engine 17 12-09-2003 01:10 PM
priming a new edelbrock carb crshrmn3 Engine 8 10-29-2002 05:04 PM


All times are GMT -6. The time now is 03:17 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0 PL2
Copyright Hotrodders.com 1999 - 2012. All Rights Reserved.