Can anyway explain to me why my spark plugs keep backing themselves out? - Focus Fanatics
Ford Focus Forum
HomeContact UsAbout UsGalleryDiscussion ForumsMarketplace



Go Back   Focus Fanatics > Ford Focus Tech Discussions > General Technical Chat

General Technical Chat This section is for technical discussions relating to general maintenance, electrical issues, engine trouble, and recalls.

Search This Forum | Image Search | Advanced Search    
FocusFest Ford Focus Tire & Wheels FocusFanatics Merchandise

Reply
 
Thread Tools Display Modes
Old 01-27-2013, 03:07 PM   #1
badazz2010focus
Focus Fanatic
 
Join Date: Aug 2010
Fan#: 78166
Location: jupiter, FL
What I Drive: 2010 ingot silver 2 dr 5 speed

Posts: 3,988
FF Reputation: 7 badazz2010focus Good Standing Member
Buy-Sell-Trade Rating: (0)
Can anyway explain to me why my spark plugs keep backing themselves out?

This is twice now I've had to pull the coils off and tighten them down with no explained reason why


badazz2010focus is online now  
    Reply With Quote
Sponsored Links
Advertisement
 
Old 01-27-2013, 05:34 PM   #2
focusonthefocus19
Focus Enthusiast
 
Join Date: Sep 2012
Fan#: 104272
Location: willis, TX
What I Drive: 2002 yellow focus zx3

Posts: 68
FF Reputation: 1 focusonthefocus19 Good Standing Member
Buy-Sell-Trade Rating: (0)
Please explain what your problem is.
focusonthefocus19 is offline  
    Reply With Quote
Old 01-27-2013, 05:56 PM   #3
badazz2010focus
Focus Fanatic
 
Join Date: Aug 2010
Fan#: 78166
Location: jupiter, FL
What I Drive: 2010 ingot silver 2 dr 5 speed

Posts: 3,988
FF Reputation: 7 badazz2010focus Good Standing Member
Buy-Sell-Trade Rating: (0)
They keep on backing themselves out for some reason and yes I tighten them down this would be twice that they have loosened themselves up
badazz2010focus is online now  
    Reply With Quote
Old 01-27-2013, 05:56 PM   #4
whynotthinkwhynot
Captain TMI
 
whynotthinkwhynot's Avatar
 
Join Date: Jan 2005
Fan#: 18416
Location: the armpit of TN, Memphis, TN
What I Drive: 05 ZXW; 02 Windstar; 13 C-Max SEL

Posts: 20,064
FF Reputation: 270 whynotthinkwhynot Outstanding Standing Memberwhynotthinkwhynot Outstanding Standing Memberwhynotthinkwhynot Outstanding Standing Member
Buy-Sell-Trade Rating: (1)
The threads are loose. This is a common problem with older cars- especially high mileage where plugs have been changed frequently.

Do you use anti-seize?
__________________
Be eclectic.
---The Complete How-To Archive--

Moderating everything now, let me know if I can help.

Quote:
Originally Posted by the user formerly known as ZX3_Chick View Post
You're special aren't you.
whynotthinkwhynot is offline  
    Reply With Quote
Old 01-27-2013, 06:24 PM   #5
badazz2010focus
Focus Fanatic
 
Join Date: Aug 2010
Fan#: 78166
Location: jupiter, FL
What I Drive: 2010 ingot silver 2 dr 5 speed

Posts: 3,988
FF Reputation: 7 badazz2010focus Good Standing Member
Buy-Sell-Trade Rating: (0)
Nope
badazz2010focus is online now  
    Reply With Quote
Old 01-27-2013, 06:59 PM   #6
whynotthinkwhynot
Captain TMI
 
whynotthinkwhynot's Avatar
 
Join Date: Jan 2005
Fan#: 18416
Location: the armpit of TN, Memphis, TN
What I Drive: 05 ZXW; 02 Windstar; 13 C-Max SEL

Posts: 20,064
FF Reputation: 270 whynotthinkwhynot Outstanding Standing Memberwhynotthinkwhynot Outstanding Standing Memberwhynotthinkwhynot Outstanding Standing Member
Buy-Sell-Trade Rating: (1)
I'm not sure if that has something to do with it or not, but when spark plugs keep backing out- the problem is that the threads are too loose, or you're not tightening the plugs down enough. I'm assuming it's not the second one since you probably increased torque since the plugs loosened.

Get you some nickel anti-seize, the last time I looked here it was $7 for a big grey container of it that you'll get years of use out of. It also comes in little one time use packets for $1, but I see those as a waste. It's much better to have anti-seize laying around- it's very handy. I put some on where my axles fit into the hub so those won't seize up like the factory parts did. There are some places where using it might not be the wisest thing- like pinch bolts. But spark plugs in aluminum heads is a definite must-have.

It's messy. Just use a little on the top threads, and tighten down to 20-25 ft-lbs carefully. If you have been tightening to 20, and that wasn't working, you shouldn't cause any damage by going up to 25- now 45 might be a big deal, so don't go too far on your own.
__________________
Be eclectic.
---The Complete How-To Archive--

Moderating everything now, let me know if I can help.

Quote:
Originally Posted by the user formerly known as ZX3_Chick View Post
You're special aren't you.
whynotthinkwhynot is offline  
    Reply With Quote
Old 01-27-2013, 07:06 PM   #7
whynotthinkwhynot
Captain TMI
 
whynotthinkwhynot's Avatar
 
Join Date: Jan 2005
Fan#: 18416
Location: the armpit of TN, Memphis, TN
What I Drive: 05 ZXW; 02 Windstar; 13 C-Max SEL

Posts: 20,064
FF Reputation: 270 whynotthinkwhynot Outstanding Standing Memberwhynotthinkwhynot Outstanding Standing Memberwhynotthinkwhynot Outstanding Standing Member
Buy-Sell-Trade Rating: (1)
OH, something I didn't think about, may be part of a problem in your car or not. On older cars crud would build up around the spark plug on high mileage heads. When you remove a plug, and then put another plug back in- the crud would get between the new plug and block screwing up your torque. I used to have to take a 1/2 extension, wrap a shop towel around it, and shove it in the spark plug socket and twist it around until I cleaned all the crud out from around the plug socket.

I don't know if that's your problem, but it might not hurt to either try cleaning, or shine a flashlight around in there to see if you have crud buildup.
__________________
Be eclectic.
---The Complete How-To Archive--

Moderating everything now, let me know if I can help.

Quote:
Originally Posted by the user formerly known as ZX3_Chick View Post
You're special aren't you.
whynotthinkwhynot is offline  
    Reply With Quote
Old 01-27-2013, 07:30 PM   #8
focusonthefocus19
Focus Enthusiast
 
Join Date: Sep 2012
Fan#: 104272
Location: willis, TX
What I Drive: 2002 yellow focus zx3

Posts: 68
FF Reputation: 1 focusonthefocus19 Good Standing Member
Buy-Sell-Trade Rating: (0)
I agree with whynot. A nice little tip is to make sure they will stay tight is snug them in when the head is warm. As the head cools it will clench on the threads, and hold them in nicely. The threads on your head might be loose which is common on higher mileage cars.
focusonthefocus19 is offline  
    Reply With Quote
Old 01-27-2013, 08:35 PM   #9
badazz2010focus
Focus Fanatic
 
Join Date: Aug 2010
Fan#: 78166
Location: jupiter, FL
What I Drive: 2010 ingot silver 2 dr 5 speed

Posts: 3,988
FF Reputation: 7 badazz2010focus Good Standing Member
Buy-Sell-Trade Rating: (0)
I thought that anti sieze was only to prevent them from freezing into the head?
badazz2010focus is online now  
    Reply With Quote
Old 01-27-2013, 08:36 PM   #10
badazz2010focus
Focus Fanatic
 
Join Date: Aug 2010
Fan#: 78166
Location: jupiter, FL
What I Drive: 2010 ingot silver 2 dr 5 speed

Posts: 3,988
FF Reputation: 7 badazz2010focus Good Standing Member
Buy-Sell-Trade Rating: (0)
She's got 83100 on the clock I can usually tell when they've come loose because my cylinder head temp sensor grommet pops off and won't stay on

Last edited by badazz2010focus; 01-27-2013 at 08:40 PM. Reason: Mistake
badazz2010focus is online now  
    Reply With Quote
Reply

Bookmarks & Social Networks

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 -5. The time now is 12:33 PM.


Copyright 2002-2014 FocusFanatics.com. All Rights Reserved : Terms of Use : Privacy Policy : Advertise Information : Site Map

Focus Fanatics Ford Focus Forum offers many fun ways for you to engage with other Ford Focus Owners from across the world. Whether it be about the aftermarket performance modifications, technical how-to's, European tuned suspension or awesome fuel economy similar to the Acura TLX or Fiesta ST. You can find all Ford Focus and Focus ST related information here. Join our Ford Focus discussion forums and chat with local Focus enthusiasts in your area.