Member
Spark Plug Gap ?
Good evening to all; the east coast is due for a much needed thaw this weekend and I think im gonna go ahead and change the spark plugs and coils in 03 Marauder. What is a good plug gap for N/A stock 4V 4.6 and should I spray PB Blaster in the heads a couple hrs before attempting to break the old plugs loose. I have heard that Ford did not put anti seize on the plugs @ the factory during assembly. Any good advice is greatly appreciated and Happy Holidays to all.
Black Thunder
My $0.02. All I know is I've heard the spark plug threads are very short so be careful. Not sure if you need to change the coils. How many miles are on it?
2012 Jeep Grand Cherokee Laredo-White
2012 Jeep Grand Cherokee Laredo-Silver
2011 Ford Fusion SE
Retired 2003 Mercury Marauder/Trilogy 054
Retired 2004. 13.00 on Nitrous safely tuned by Alt Auto.
Member
She is about to hit the ole 100,000 mile mark. My better half bought me a set Accel Coils for Christmas. Is that a .054 gap? Thanks for the advice
Super Touring
Originally Posted by Black Machine
Yes on gap. Coils are good. I have a set installed. Very smooth after install.
Take compressed air and blow out any junk in the plug wells, before removal.
Dielectric grease on the connections. use a torque wrench (tight but not too tight) thread in new ones by hand to make sure you are threaded, then use wrench/spanner.
I change plugs every year. I hope they come out after 100K!
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03 300A - Number 1727 - Super Touring - 10k in the best upgrades - 13.8@99 N/A - SOLD- STAP was so much fun, loved meeting you all and racing.
S/C 20" MINI TUBBED WHEEL GUY!
when i changed my plugs i used a dab of anti seize on each plug, i would hate to have one seize in the aluminum head.
04 MERCURY MARAUDER build date:02/11/04ITS ALIVE !!!!!!!!
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Hey thanks for the info guys, much appreciated.
73 is the best number.
Fixed it for you.
The Blackbird
Trilogy #61
Driveway Queen
The Spruce Goose
2004 Grand Marquis LS Limited Edition
Daily Driver
Member
I was able to change all of the plugs and coils today with no problem; thanks again for the technical advice guys.
Junior Member
Now that you changed the cops installed new plugs does the car run any better ?
2004 marauder black purchased new. Sold 9/16 at 297,000 miles. Still ran strong didn't burn a drop of oil.
2003 marauder black 28,000 miles all stock. Garage Queen.
2004 marauder red daily driver.
Regulate Racing
Anti seize is a must and a cold engine also, when it comes to this aluminum heads.
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