Go to their website. They should have an owners manual you can download for your specific car. It'll tell you.
is 54 gap for a spark plug mercury mountanier 2002 4.6
On a 1997 to 2001 Mercury Mountaineer : Check the Vehicle Emissions Control Information ( VECI ) decal located in the front of your engine compartment . It shows what type of spark plug to use and the spark plug gap
A 2004 Mercury Mountaineer does not have the Coil On Plug ( C.O.P. ) ignition system with ( 8 ) individual coils . It has the Electronic Distributorless Ignition System ( EDIS ) with ( 2 coil packs ) and ( 8 ) spark plug wires
blown head or cracked block
spark plug gap for 5.0 liter engine is 0.054 inches
The 1999 model, 90 hp Mercury outboard requires an NGK BUHW-2 spark plug, standard plug wires are acceptable.
The number 1 spark plug is left side.If you were looking at the engine from the front to the back and is the first one on the left.
1.3 to 1.4 mm ( .052 to .056 inch )
Check the Vehicle Emission Control Information ( VECI ) decal in the front of your engine compartment . It will show what type of spark plug to use and the spark plug gap
Screwed into the engine. Follow the spark plug wires.
Check the Vehicle Emission Control Information ( VECI ) decal located in the engine compartment ( it will show what type of spark plugs to use and the spark plug gap )
.052 to .056 inch ( 1.3 to 1.4 mm )