12 Valve 2nd Gen Dodge Cummins 94-98 Discussion of 12 Valve 5.9 Liter Dodge Cummins Diesels with P7100 Injection Pumps

wierd boost question

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Old Feb 25, 2010 | 12:29 AM
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Default wierd boost question

so i did my head gasket and put gauges in. before i did my head gasket i would blow lots of smoke and my turbo would bark often when i let off. now my turo spools right up and i blow a lot less smoke and it never barks. my thoughts are i had a boost leak somewhere and wasnt pushin full boost so it smoked. but if i wasnt pushin as much boost then why would it have barked then and not now?
 
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Old Feb 25, 2010 | 09:45 AM
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what does your boost gauge read now
 
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Old Feb 26, 2010 | 12:09 AM
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highest i can get is about 38.
 
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Old Feb 26, 2010 | 12:20 AM
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could be your wastegate sticking does it sound like, air coming back thru? choo choo sound
 
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Old Feb 26, 2010 | 12:42 AM
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now it sounds normal. before it was barking.
 
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Old Feb 26, 2010 | 01:07 AM
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Originally Posted by jrad989
so i did my head gasket and put gauges in. before i did my head gasket i would blow lots of smoke and my turbo would bark often when i let off. now my turo spools right up and i blow a lot less smoke and it never barks. my thoughts are i had a boost leak somewhere and wasnt pushin full boost so it smoked. but if i wasnt pushin as much boost then why would it have barked then and not now?
have seen the nut on the compressor wheel spinn off barking
 
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