Changing Spark Plugs
Technical Article Contributor
Joined: May 2004
Posts: 6,509
Likes: 6
From: Georgia on my mind...
Originally Posted by GIJoeCam
Well, in that case, I'll be sure and tell the engineers who spent months researching the problem and engineering the solution that they have no clue what they're talking about.... :rolleyes
Carbon build-up can be and is brown. The head's not rusting because it's Aluminum, and the spark plug ground electrode shows no signs of pitting after the brown material is removed... so what's the source of the rust??
Carbon build-up can be and is brown. The head's not rusting because it's Aluminum, and the spark plug ground electrode shows no signs of pitting after the brown material is removed... so what's the source of the rust??
Senior Member
Joined: Jan 2006
Posts: 346
Likes: 0
From: clarksville tn
Originally Posted by Stealth
This isn't carbon, and looks like rust to me.
This is the post the plug pics are from. https://www.f150online.com/forums/sh...3&postcount=46
Here's the thread. It's a bible, better pay attention. https://www.f150online.com/forums/sh...d.php?t=214810
This is the post the plug pics are from. https://www.f150online.com/forums/sh...3&postcount=46
Here's the thread. It's a bible, better pay attention. https://www.f150online.com/forums/sh...d.php?t=214810
i am not in any kind of rivalry discussion. i am a disinterested 3rd party. that is exactly the same buildup on the plugs i just replaced this morning. it is carbon. you will find it all over your chamber if you could look inside. on the aluminum and steel.
Senior Member
Joined: Nov 2005
Posts: 17,118
Likes: 7
From: Burleson, Texas
Funny how in the picture there isn't any "carbon" deposits where carbon deposits normally collect on a spark plug. You say potato................
Who cares what the makeup of the deposit is, it's there. It's a _ _ _ _ deposit. Insert your word, whatever you like. It's still there, even if the independent laboratory testing results pertaining to the chemical makeup of the deposits aren't yet in.
Who cares what the makeup of the deposit is, it's there. It's a _ _ _ _ deposit. Insert your word, whatever you like. It's still there, even if the independent laboratory testing results pertaining to the chemical makeup of the deposits aren't yet in.
Senior Member
Joined: Jan 2007
Posts: 113
Likes: 0
It's carbon, and the reason you don't see the build up where you think it normally would be is because of the heat of the combustion chamber burns it off. It builds up more the farther away from the heat source.
GIJoeCam do you work for Honeywell?
GIJoeCam do you work for Honeywell?
Senior Member
Joined: Nov 2005
Posts: 17,118
Likes: 7
From: Burleson, Texas
On my plugs that were taken out at 20,000 miles per TSB, well they had no discoloration (rust, carbon, whatever) on them at all. The tech showed them to me. Maybe fuel in the different regions of the country burn differently.
Senior Member
Joined: Oct 2004
Posts: 406
Likes: 0
From: The Internet
Originally Posted by Quintin
PZT-1F-F4.
Is there any upgrade in the design that addresses the spark plug issue, or is this just an example of how you mentioned that Ford likes to keep revising part numbers for spark plugs?
