Spark plugs backing out?
Thread Starter
|
Senior User
Joined: Apr 2011
Posts: 227
Likes: 1
From: Plymouth, MI
Spark plugs backing out?
Have any of you had problems with your 360 to where your spark plugs will back out on their own? I had one a while back that was lose and i tightened it and now i checked them again and two of them on the driver side are loose.. What could cause this? To much vibration? what?
thanks.
thanks.
Post Fiend
Joined: Apr 2008
Posts: 8,261
Likes: 15
From: Big Sky Country
I haven't used Autolites since they shipped production overseas 3-4yrs ago, they tried to be sneaky about it too, the plugs use to be stamped "made in usa", now the plugs are just left blank, but the packaging is marked "made in china" or "made in mexico".
Post Fiend
Joined: Apr 2008
Posts: 8,261
Likes: 15
From: Big Sky Country
I still have a couple dozen of the old "made in usa" Autolite 45's on the garage shelf, but when that supply is exhausted i'll probably just run Motorcraft BF42C's (assuming they're still made in usa).
Trending Topics
Fleet Owner
Joined: Jan 2004
Posts: 26,007
Likes: 575
From: Brentwood,CA
BINGO
Compare a new AP45 to an old USA made AP45 , well something got lost in translation as it seems from measure them they rounded down to the nearest decimal point when converting from standard to metric. The plugs are smaller and thats why you can install them by hand and they wiggle so bad until you tighten them. The threads are not making full contact with the threads in the head. The NGK plugs that cross to AP45 have a very nice fit and finish.
NGK: WR5VX
AC Delco: R83TS
Denso: MA20PR-U
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
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
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make
Brett Foote
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!
Michael S. Palmer
Ford's 2001 Explorer Sportsman Concept Looks For a New Home
Verdad Gallardo
10 Best Ford Truck Engines We Miss the Most!
Joe Kucinski
2026 Shelby F-150 Off-Road: Better Than a Raptor R?
Brett Foote
2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!
Michael S. Palmer
Posting Guru
Joined: Jan 2000
Posts: 2,281
Likes: 4
From: colbert washington
Hate to tell you this as you may be hartbroken but I just picked up some motorcraft plugs and they are made in Mexico my friend. Im going to install them in a month or two and if they are loose fitting I might just s can them and get another brand. Ill track this post down and let you know how they fit.
Post Fiend
Joined: Dec 2007
Posts: 8,521
Likes: 16
From: Lost
Hate to tell you this as you may be hartbroken but I just picked up some motorcraft plugs and they are made in Mexico my friend. Im going to install them in a month or two and if they are loose fitting I might just s can them and get another brand. Ill track this post down and let you know how they fit.
As for the "lost in translation" theory, I thought spark plugs always used metric threads? 14mm or 18mm.
Posting Guru
Joined: Jan 2000
Posts: 2,281
Likes: 4
From: colbert washington
Like a post I saw on another web site LMChinese.http://www.flickr.com/photos/vic-63-65/6812407627/http://www.flickr.com/photos/vic-63-65/6812407627/ by http://www.flickr.com/people/vic-63-65/, on Flickr
Post Fiend
Joined: Apr 2008
Posts: 8,261
Likes: 15
From: Big Sky Country
Were they BF42C's? a friend of mine just bought a lot of 48 BF42C's on ebay and they were marked "made in usa", maybe they were old stock, i dunno.
Laughing Gas
Joined: Aug 2008
Posts: 840
Likes: 8
I was a Champion plug guy for years, but no longer. Made in China....hmmmm....
I suppose they do have the technical drawings, but it seems Quality Control is the problem.
In this first picture, you can see how the wrong porcelin insulator was used in one of these plugs:
In this next picture, you can see the cross-threading of the plug...yep, right from the factory (not me doing it):
Might as well run these:
Anyway, regardless of where Autolite is made, I made the switch and no problems since.
I suppose they do have the technical drawings, but it seems Quality Control is the problem.
In this first picture, you can see how the wrong porcelin insulator was used in one of these plugs:
In this next picture, you can see the cross-threading of the plug...yep, right from the factory (not me doing it):
Might as well run these:
Anyway, regardless of where Autolite is made, I made the switch and no problems since.