5.9L 12V Performance Discussion of 12 Valve 5.9 Liter Dodge Cummins Diesels with P7100 Injection Pumps Related to Performance and Longevity

gsk question

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Old Sep 11, 2010 | 08:09 PM
  #1  
monster12valve's Avatar
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i have a 4k gsk that only spins 2600 rpm.. if i tighten the springs will that raise the rpm? thanks guys in advance
 
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Old Sep 11, 2010 | 11:17 PM
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2600 rpm free rev in park?
 
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Old Sep 12, 2010 | 01:24 AM
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lodal cummins's Avatar
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yes if you tighten them it should turn alot better for you. springs should be set at .045 to .050, make sure you measure them and set both sides, or sets the same.
 
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Old Sep 12, 2010 | 01:28 AM
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that is how it works. its centrifugal.
 
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Old Sep 12, 2010 | 02:26 AM
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Originally Posted by monster12valve
i have a 4k gsk that only spins 2600 rpm.. if i tighten the springs will that raise the rpm? thanks guys in advance
do you have valve springs?
 
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Old Sep 12, 2010 | 09:16 AM
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monster12valve's Avatar
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yes i have 60lb valve springs. i set them back to factory tightness. i counted the turns of the nut and matched it back with the new springs. havent tried to free rev it in park or neutral... i no i did it right.. but what happens if one is a click tighter? also my idle stayed the exact same. i thought it would need adjusting? thanks for the help guys
 
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Old Sep 12, 2010 | 10:14 AM
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yeah i think u need 2 tighten them more
 
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Old Sep 12, 2010 | 10:43 AM
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Try three clicks after the first soft click. If you watch, you can see and hear when it clicks. Also, be sure that you got ALL of the washers out before installing the new springs.
 
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Old Sep 12, 2010 | 12:01 PM
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yea i got the washers out... there was 2 on each spring set. i will give them another couple clicks 2maro. also for anybody thinking about doing there own gsk install....DO IT!! i was nervous at first but it is super easy! so glad i saved the 170$ the shop wanted to install the vs and gsk. Thanks again guys for the help.. i really appreciate it alot !

---AutoMerged DoublePost---

Also you talk about a night and day difference !
 

Last edited by monster12valve; Sep 12, 2010 at 12:01 PM. Reason: Automerged Doublepost
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