OEM Lincoln Town Car Spark Plug

Lincoln Town Car Spark Plug Parts and Q&A

• Spark Plug
  AGSF-22F-M1X
  Q: How to inspect a spark plug for issues such as bridged gaps, deposit build-up, oil fouling, carbon fouling, normal burning, pre-ignition, overheating, and fused deposits on Lincoln Town Car?

  A:

  An inspection of the spark plug must reveal a bridged gap and inspect if deposit buildup has sealed the electrodes gap resulting from oil or carbon fouling. Check and cleanse the spark plug if necessitated. Check for oil fouling through analysis of wet black solidifications found on the spark plug parts since this condition develops when engine oil flows into the chamber due to flawed rings and broken Piston rings and valve guide gaps and worn-out bearings so address all potential leak scenarios before buying another spark plug. A diagnostic method to check for carbon fouling requires inspecting black dry fluffy carbon deposits on spark plug insulator tips along with exposed shell surfaces and electrodes; an incorrect heat range can produce these deposits along with a dirty air cleaner or rich fuel mixture or prolonged idling; cleaning the fouled spark plug is necessary. Normal burn inspection shows light tan or gray residue on the firing tip of the spark plug. A new spark plug becomes necessary when pre-ignition occurs because it damages the insulator and causes electrode melting and releases metallic deposits from incorrect ignition timing or unauthorized hell-coil insert installation or using the wrong fuel type. Check for overheating signs through electrode white or light gray spotting alongside bluish-burnt appearance resulting from engine overheating, incorrect fuel type or loose spark plugs, inappropriate spark plug heat ranges, insufficient fuel pressure or incorrect ignition timing timing. An evaluation for fused deposits should be performed due to their melted or spotty nature which looks like bubbles or blisters from sudden acceleration instances but these can be cleaned off a spark plug.
• Spark Plug
  AGSF-32N-X
  Q: How to service spark plugs on Lincoln Town Car?

  A:

  The service of spark plugs begins by removing ignition coil-on-plugs from their position. Hand tools exclusively should be used when working with the cylinder head and spark plugs because any other tools can cause damage to these components. It is necessary to employ compressed air when clearing foreign debris from each spark plug well before starting the removal process. Thorough inspection of the spark plugs should be performed after removal. Always tighten the spark plugs to 18 Nm (13 lb-ft) when reinstallation takes place. To install spark plugs properly into gasoline engines, users must set the gap between 1.32-1.42 mm (0.052-0.056 in) while flexible fuel engines require 1.04-1.19 mm (0.041-0.047 in). Finish the installation step by doing the reverse order of removal operations.