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Contour and Focus
SVT Focus
2004 CO SVT Focus with a Blown Head
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<blockquote data-quote="mavisky" data-source="post: 14396172" data-attributes="member: 139858"><p>In my time with DSM's which are also interference engines the belts usually let go under acceleration in gear. This led to the valve getting bent and usually the cylinder coming back to say hello a couple more times before everything shut down and the car was in neutral. Those precious tenths of a second when the car is still in gear keep the bottom end of the motor turning even if the cams are sitting still. For your sake I hope everything in the bottom end is good, but I'd be cautious. The car may run fine even with a new head and a "ding" in the piston, but that ding will have an edge, and that edge will creat a hot spot, and that hot spot will lead to detonation under hard driving. So even if it's not a BIG issue today, it could develop into one. </p><p></p><p>Just make sure you do your research, if the bottom end is dinged, re-negotiate and you may end up with a great performer with a built bottom end for a great price.</p></blockquote><p></p>
[QUOTE="mavisky, post: 14396172, member: 139858"] In my time with DSM's which are also interference engines the belts usually let go under acceleration in gear. This led to the valve getting bent and usually the cylinder coming back to say hello a couple more times before everything shut down and the car was in neutral. Those precious tenths of a second when the car is still in gear keep the bottom end of the motor turning even if the cams are sitting still. For your sake I hope everything in the bottom end is good, but I'd be cautious. The car may run fine even with a new head and a "ding" in the piston, but that ding will have an edge, and that edge will creat a hot spot, and that hot spot will lead to detonation under hard driving. So even if it's not a BIG issue today, it could develop into one. Just make sure you do your research, if the bottom end is dinged, re-negotiate and you may end up with a great performer with a built bottom end for a great price. [/QUOTE]
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Contour and Focus
SVT Focus
2004 CO SVT Focus with a Blown Head
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