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ST/RS Fords
Focus ST
Buying a new Focus...
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<blockquote data-quote="Snake Plissken" data-source="post: 15081633" data-attributes="member: 81849"><p>I was talking with someone up on the Terminator forum and we were discussing the problem of valve stem build-up on these Ecoboost motors. Direct injection seems to be the main culprit. The stems don't get 'washed' with fuel to help them stay clean. Plus, if oil vapor gets into your air intake that may 'cling' to the stems causing build-up. So, the first mod on the list is now an oil separator. </p><p></p><p>If you don't have an oil separator, I would install one.</p></blockquote><p></p>
[QUOTE="Snake Plissken, post: 15081633, member: 81849"] I was talking with someone up on the Terminator forum and we were discussing the problem of valve stem build-up on these Ecoboost motors. Direct injection seems to be the main culprit. The stems don't get 'washed' with fuel to help them stay clean. Plus, if oil vapor gets into your air intake that may 'cling' to the stems causing build-up. So, the first mod on the list is now an oil separator. If you don't have an oil separator, I would install one. [/QUOTE]
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