Spark Plugs - Hot Rod Forum : Hotrodders Bulletin Board -- Hot Rod Forum

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

LinkBack Thread Tools
  #1 (permalink)  
Old 09-09-2008, 10:32 AM
Registered User
Last photo:
Join Date: Nov 2005
Location: Seattle, WA
Posts: 127
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Spark Plugs

Ive had this happen twice now where my brand new spark plugs get fuel fouled (fairly heavy wet fuel fouled) and then wont fire. I cant get the engine to start or the plugs fire erratically and the engine runs like its running on 4 cylinders instead of 8. After I fix the carburetor/fuel issues and replace the plugs with brand new ones the engine starts fine and runs fine. Ive tried to clean the fuel fouled plugs (wipe with rag and let air dry) and reinstall them but that helps only a little. I just read a little bit of the NGK website and its says that if plugs get fuel fouled then to replace doesnt even say to try and clean them. My question how does the fuel affect the spark plug in such a way that it prevents (or hinders) it from firing? Why does this happen even if the wet fuel is wiped or dried away?

Reply With Quote Quick reply to this message
Sponsored Links
  #2 (permalink)  
Old 09-09-2008, 06:45 PM
Last photo:
Join Date: Jul 2005
Location: Dayton,Oh
Posts: 294
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Excess Carbs

Tell me about your carburetor? How old? When was it rebuilt? Have you tried adjusting the mixture screws lately?

If the mixture isn't pretty close many engines won't start or run right. You are obviously running way too rich for some reason.

What kind of choke is on there? Manual? Electric? ?? If your choke stays on very long after running this will give you a rich condition and foul plugs.

Reply With Quote Quick reply to this message

Recent Electrical 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

Similar Threads
Thread Thread Starter Forum Replies Last Post
Blower Motor - Timing - Spark Plugs: Need Clarification Please 41willys Engine 19 08-31-2008 10:01 AM
Expensive Spark Plugs Worth It? Kampr Engine 19 12-10-2007 12:02 AM
Chevy 454 Spark Plugs Selection Help leejoy Engine 12 10-02-2006 12:05 AM
motor wont start spark plugs have oil on them 54chevy22 Engine 13 08-10-2006 09:28 AM
Spark plugs sparking to the side mar10 Electrical 3 07-25-2002 05:51 PM

All times are GMT -6. The time now is 05:32 PM.

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 1999 - 2012. All Rights Reserved.