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

Valve Spring Install

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Old May 30, 2010 | 09:49 PM
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Default Valve Spring Install

While I have the head off I'd like to install my 60lb valve springs, intake and exhaust. How do I go about doing this install?
 
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Old May 30, 2010 | 09:57 PM
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you will need a valve spring compressor, compress the old spring, remove the reatiners, decompress spring, remove old spring, install new spring, compress it, install reatiners, decompress it, then move on to the next one.
 
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Old May 31, 2010 | 01:35 PM
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Thanks! And one more question? How do I get the retainers off?
 
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Old May 31, 2010 | 01:53 PM
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small magnet is the best way, or with the head off needle nose plyers will work just fine.
 
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Old Jun 2, 2010 | 11:12 AM
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u don't need to take the head off do you?
 
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Old Jun 2, 2010 | 11:25 AM
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no you can do it with the head on you will just have to pressurize the cylinder with air through the injector hole it will hold the valve up
 
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Old Jun 2, 2010 | 11:27 AM
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Originally Posted by ztk7220
u don't need to take the head off do you?
you can do it with the head on but its takes a good while

Originally Posted by 12vcummins96
no you can do it with the head on you will just have to pressurize the cylinder with air through the injector hole it will hold the valve up
you don't have to do that, I did mine by rolling the motor arround until the cyl I was working on was at TDC. The valve will rest on the top of the piston after you take the spring off.
 
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Old Jun 2, 2010 | 12:21 PM
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Originally Posted by 94 12valve



you don't have to do that, I did mine by rolling the motor arround until the cyl I was working on was at TDC. The valve will rest on the top of the piston after you take the spring off.
thats another way but its a pain when the valve wont stay up when trying to put the keepers in
 
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Old Jun 2, 2010 | 12:22 PM
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I need to do mine as well but also need to replace the seals while im in there.. How hard is it to get to the ones at the back with the spring compressor?
 
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Old Jun 2, 2010 | 01:01 PM
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Originally Posted by jumpnjed
I need to do mine as well but also need to replace the seals while im in there.. How hard is it to get to the ones at the back with the spring compressor?
depends on what spring compressor you have. I made my own that worked well out of a peice of plate.
 
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