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HP 500 losing RPMS

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Old 07-09-2012, 06:55 PM
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Thanks, I'll check it this week. Hope thats all it is
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Old 08-20-2012, 08:09 PM
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Default 500 hp low rpm

Hello, ya better check the valve springs, the inner coils break, triple springs & the crane roller lifter thru pins can come loose and the lifter can get jacked in the block and break and start eating the cam up
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Old 08-20-2012, 09:25 PM
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Check the little things first, and the coil would be a good place to start they can do funny things when they get warm-hot
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Old 09-02-2012, 07:10 PM
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Thanks for all the help, it was the coil causing the problem.
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