2000 Ford Focus Oil Consumption - rings or valves?

2000 FORD FOCUS
90,000 MILES • 4 CYL • 2WD • MANUAL
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PRIDDY
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Oil consumption on daughter's car is high - no leaks, no significant smoke (including after overrun). One spark plug badly fouled (see picture). Is there an easy way(s) to tell if it is a valve guide .v. rings? Head replacement may be worth the money but whole engine - hmmm?

Oil has probably plugged the cat-converter - which is being fixed now.
[img:ba8ae1ad60]http://www.2carpros.com/forum/automotive_pictures/391770_spark_plug2_1.jpg[/img:ba8ae1ad60]
Aug 4, 2009 at 4:01 AM
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MHPAUTOS
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Hi there,

For that amount of deposits to build up you would be looking at a ring problem, a leak down test will help determine the blow by and a wet comp test the general condition of the rings, fitting a head will only cause more oil consumption problems, i would be looking at a second hand or re co engine.

mark (mhpautos)
Aug 4, 2009 at 5:34 AM