My 2003 Had a Ruff Idle. After Changing the plugs and Coils, Which were the Factory originals from 2003 BTW, There was no change. Got a Compression Test and it was #8.
2003 Mercury Marauder- Stock with 223k miles.
2000 Crown Victoria P73. Deep Wedge Wood Blue.
SW longtube headers and high flow cats, magnaflow mufflers, 3.55 gears w/track lock, 70mm Aviator TB, PnP factory plenum, ADTR intake tube, 87 octaine tune by MO. Bilstein HD shocks, Mecto Rear control arms w/ watts link, Addco custom order 1.5 inch front sway bar (38mm), 1.25 inch rear bar 31.75mm (only 11 made).
Ran compression test today. Test was done with engine cold and each cylinder was cranked same amount of times. Sadly have an issue on #8. Numbers were
#1-220
#2-225
#3-215
#4-225
#5-200
#6-205
#7-185
#8-85
2004 SB
4.10's and a tune
More to come
The valve seat dropped.
Dont buy other heads, get yours freshened and have them install 8 time zert fittings to get the same advantage the 9 thread heads have.
8 time zerts installed is wayyyy cheaper than buying some other heads.
Other than the labor involved, this is a common repair.
Good luck!
The twins2.3 whipple/aluminatorVortech V-2 lots of goodies
Current marauders
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