long thread head question
Thread Starter
|
Junior User
Joined: Dec 2004
Posts: 61
Likes: 0
From: NJ
long thread head question
i recently had a spark plug problem, one loosened up and left the head... i got it back in and tq'd everything seems fine. my question is if my truck came with the full thread plugs (which is what i removed and then put new ones in) like this
on the right.
does that mean my 2002 v10 has the long thread heads from the factory ? i'm just trying to think logically here
on the right.
does that mean my 2002 v10 has the long thread heads from the factory ? i'm just trying to think logically here
FTE Leadership Emeritus
Joined: Jul 2002
Posts: 42,561
Likes: 423
From: Long Island USA
What is the exact manufacture date of your truck (from the door sticker) ???
Late model-year 2002, long thread heads.
Where did the short-thread plug come from?
Any replacement plugs are now "long thread"...
Late model-year 2002, long thread heads.
Where did the short-thread plug come from?
Any replacement plugs are now "long thread"...
Thread Starter
|
Junior User
Joined: Dec 2004
Posts: 61
Likes: 0
From: NJ
i'll look when i goto lunch for the manufacture date of my truck. IIRC it was late 2001. i guess it could be possible the heads were changed under warranty (this truck had extended warranty until june 2007 or 83000 miles)
i was searching on the forum and found that pic and posted it again. i just posted it for reference sake. i bought the truck @ 62k miles and am 99% sure the plugs are original. a few plugs were nice and rusted and crudded up.
i was searching on the forum and found that pic and posted it again. i just posted it for reference sake. i bought the truck @ 62k miles and am 99% sure the plugs are original. a few plugs were nice and rusted and crudded up.
Tuned
Joined: Sep 2002
Posts: 408
Likes: 11
From: saline USA
The long plug means nothing about how many threads there are in the head. They used the short plug until 2000 and then went to the longer plug, but the taper is still in the same position on the plug and they just left the space between the taper and the five threads in the head empty with no threads. Great engineering if you want to go broke.
I don't believe that it was until the end of 2002 that they put more threads in the head. I have a 2002 April V10 and it has short threads.
No one has varified the longer threads and neither will Ford.
Keep them torqued to more than 14lbs for sure, or check them every 30k for loose ones.
If your plug blew out there is a good chance it will do it again. Timesert is the way to go and have had great success with their insert. No helicoils, they will mess it up. Timesert insert is the way to go.
Andrew.
I don't believe that it was until the end of 2002 that they put more threads in the head. I have a 2002 April V10 and it has short threads.
No one has varified the longer threads and neither will Ford.
Keep them torqued to more than 14lbs for sure, or check them every 30k for loose ones.
If your plug blew out there is a good chance it will do it again. Timesert is the way to go and have had great success with their insert. No helicoils, they will mess it up. Timesert insert is the way to go.
Andrew.
Thread Starter
|
Junior User
Joined: Dec 2004
Posts: 61
Likes: 0
From: NJ
if the plug comes out again. i will have no choice but to do the sert thing. for now i will see if the plug holds. drove the truck 20 miles with no problem besides CEL from driving the truck on 9cyl before. as of now its running better than ever....
Thread Starter
|
Junior User
Joined: Dec 2004
Posts: 61
Likes: 0
From: NJ
i plan on just changing the plugs every year, cheap insurance. this truck is for towing my race car and 75% of the miles i put on it have been towing 6000lbs+
Trending Topics
Thread Starter
|
Junior User
Joined: Dec 2004
Posts: 61
Likes: 0
From: NJ
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
3 Best / 3 Worst Parts of Modern Ford Ownership
Brett Foote
10 Amazing Upgrades That Solve Common Ford Truck Owner Headaches
Pouria Savadkouei
Every 2026 Ford Engine Explained
Brett Foote
10 Ugly Ford Trucks That We Still Kinda Love
Joe Kucinski
10 Things Every Truck Owner NEEDS (2026 Edition)
Michael S. Palmer
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath
Verdad Gallardo
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer
Joe Kucinski
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)
Brett Foote
Top 10 Ford Truck Tragedies
Joe Kucinski
New User
Joined: Jul 2007
Posts: 13
Likes: 0
After the research I did on torque I settled in on 20 ft pounds (240 inch pounds) with anti seize. There are a lot of opinions and the lower Ford torque spec seems to be part of the problem and not part of the solution. Also, the platinum plugs may be good for 100,000 miles but it is a big mistake to let them corode that long without antiseize. Best advice I think I got was to pull them every 25,000 miles for inspection.
New User
Joined: Sep 2007
Posts: 8
Likes: 0
Originally Posted by Vosko
if the plug comes out again. i will have no choice but to do the sert thing. for now i will see if the plug holds. drove the truck 20 miles with no problem besides CEL from driving the truck on 9cyl before. as of now its running better than ever....
Thread
Thread Starter
Forum
Replies
Last Post
sandroost
2007 - 2014 Expedition & Navigator
5
Mar 21, 2015 11:18 PM
MWH615
1999 - 2016 Super Duty
27
Mar 2, 2010 11:32 AM
