sparkplug repair inserts,
I have saved customer's (or myself) thousands of dollars (depends who you argue with) installing alloy steel repair inserts on some Ford aluminum 4.6 and 5.4 engines and always wonder if the path of heat transfer for the plug now has been made longer, and if a choice of a slightly cooler heat range of spark plug should be given consideration, since adding a steel insert to the equation might be in theory making the plug run hotter
.
I have saved customer's (or myself) thousands of dollars (depends who you argue with) installing alloy steel repair inserts on some Ford aluminum 4.6 and 5.4 engines and always wonder if the path of heat transfer for the plug now has been made longer, and if a choice of a slightly cooler heat range of spark plug should be given consideration, since adding a steel insert to the equation might be in theory making the plug run hotter
.

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