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Old 08-01-2007, 12:38 AM   #11
dcrusupra
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Quote:
Originally Posted by abhattan
I have the same problem, but my cap is good. I did a compression test and got 110psi on #1 cylinder, the rest was at 150psi +/-4psi. What could it be?
You need a rebuild bud. It shouldn't go below 120 psi nor should it be above a 15 psi difference among the 6 cylinders.
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Old 08-02-2007, 09:58 PM   #12
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It sucks when you know what's wrong, but don't want to believe it.
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Old 08-02-2007, 11:13 PM   #13
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I kno the feeling. If you have the cash, rebuild it. A chance to install forged internals.
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Old 08-03-2007, 01:10 PM   #14
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abhattan
did you do any prep to that engine as in "metal head gasket " before you added all that extra boost ?
i'm just curious
i can't imagine you're only getting 10 lbs are you guessing ?
do you have a real boost gauge ?
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Old 08-04-2007, 01:17 PM   #15
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I installed a mechanical boost gauge and then shimmed the wastegate until I got 9-10lbs. No head gasket done yet. Thinking about doing it in a about a month or so. But could a bad head gasket cause low compression in #1 cylinder and not have any serious leaks?
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Old 08-06-2007, 12:41 PM   #16
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a BHG usually hits #6 or #1
welcome to the club
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