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  #16  
Old 05-15-2018, 10:16 PM
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Quote:
Originally Posted by crownvic97 View Post
Yes, I took it as an opportunity to upgrade however. You could pull just the driver side head and have the valve/valve seat repaired on 8 (assuming That’s the issue which is likely).

I bought some 9 thread heads, had a valve job and some porting done to them, and basically replaced everything other than the shortblock. Still not done!
Yeah I'm afraid this could snow ball into a big project lol
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  #17  
Old 05-16-2018, 07:03 AM
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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.
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2003 Mercury Marauder- Stock with 223k miles.

2000 Crown Victoria P73. Deep Wedge Wood Blue.
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  #18  
Old 05-16-2018, 10:17 AM
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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
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  #19  
Old 05-16-2018, 10:30 AM
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The valve seat dropped.
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  #20  
Old 05-16-2018, 11:41 AM
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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!
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