05-20-2011, 03:41 PM
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CC Member
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Join Date: Jun 2005
Cobra Make, Engine:
Posts: 3,077
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Not Ranked
This was not a lifter failure!!!!! How could it be? The root of this problem is what allowed the circlip to popout of the lifter allowing it to come apart. #1 the valve lash was set to close to zero and there was slop between the pushrod and lifter cup causing excessive vibration causing the circlip to pop or break. #2 You bent a pushrod or a bent one was installed. #3 you floated the valves.
Ford racing lifters are perfectly fine, they live in millions of 5.0L for 200K miles. Nobody can match that track record.
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