Joined
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701 Posts
Guys,
Changing the spark plugs back from the "wonder of sparkplugs Bosch Platinum +4" to the Motorcraft ones just solved all my engine ping problems.
My stang runs on "cheap gas again" !!!
See how the problem started:
http://www.allfordmustangs.com/forums/showthread.php?t=46809
[I totally agree with dollarbill]
The problem:
The way how those platinum +4 work is probably a very good design for a motor which has the spark plug located in the centre of the cylinder head (4 valves, hemi style).
How ever if you drop them in a 2V 4.6 L modular (spark plugs located on the side of the combustion chamber), they don’t work properly:
Out of those 4 prongs of the spark plug, at least two get way to hot, probably due to their location in the combustion chamber. Those two prongs were snow white which means that the temperature that has been created on the spark plug was so hot, that it burnt the carbon deposits 100%. This causes “hot spots” which can create pre ignition -> pinging.
How ever the other two prongs were brown / grey coloured, which means incomplete combustion or not enough temperature.
I do not recommend you to use those Platinum +4 plugs in your car. They can only create troubles but no real power gain.
But that's just my oppinion.
Changing the spark plugs back from the "wonder of sparkplugs Bosch Platinum +4" to the Motorcraft ones just solved all my engine ping problems.
My stang runs on "cheap gas again" !!!
See how the problem started:
http://www.allfordmustangs.com/forums/showthread.php?t=46809
[I totally agree with dollarbill]
The problem:
The way how those platinum +4 work is probably a very good design for a motor which has the spark plug located in the centre of the cylinder head (4 valves, hemi style).
How ever if you drop them in a 2V 4.6 L modular (spark plugs located on the side of the combustion chamber), they don’t work properly:
Out of those 4 prongs of the spark plug, at least two get way to hot, probably due to their location in the combustion chamber. Those two prongs were snow white which means that the temperature that has been created on the spark plug was so hot, that it burnt the carbon deposits 100%. This causes “hot spots” which can create pre ignition -> pinging.
How ever the other two prongs were brown / grey coloured, which means incomplete combustion or not enough temperature.
I do not recommend you to use those Platinum +4 plugs in your car. They can only create troubles but no real power gain.
But that's just my oppinion.