Replacing head gasket 6.0 diesel 2003 - Diesel Forum - TheDieselStop.com
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Upgrades and Aftermarket - 6.0L Engine Upgrading or adding OEM or aftermarket equipment to your 2003-Up Super Duty or Excursion with 6.0L Power Stroke diesel engine. Please confine discussion of topics in this forum to those items that are specific to the 6.0L Power Stroke engine.

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Old 05-15-2011, 09:26 PM   #1 (permalink)
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Replacing head gasket 6.0 diesel 2003

I am replacing the head gaskets on my 2003 F350 with the 6.0 diesel and need some help in finding out how to remove the high pressure oil line that passes down into the head from the oil rail. How do I remove it and do I need a special tool to do it? I can see a nut at the base of the line just above the head but there is not enough room to get a wrench in. Also does anyone know if the new ford head bolts any better then the original ones or should I go with the APR ones? The APR ones are very expensive!
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Old 05-20-2011, 09:27 AM   #2 (permalink)
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I am replacing the head gaskets on my 2003 F350 with the 6.0 diesel and need some help in finding out how to remove the high pressure oil line that passes down into the head from the oil rail. How do I remove it and do I need a special tool to do it? I can see a nut at the base of the line just above the head but there is not enough room to get a wrench in. Also does anyone know if the new ford head bolts any better then the original ones or should I go with the APR ones? The APR ones are very expensive!
I had the new ford ones done under warranty, they stretched in 2 weeks.
So unless you want to do this again, get the ARPs. Also make sure you send the heads to a machine shops, they are known to crack around the valve seats and be warped. This is a huge job, you don't want to do again.
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Old 05-20-2011, 12:24 PM   #3 (permalink)
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ARP head studs, $400
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Old 05-20-2011, 12:41 PM   #4 (permalink)
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Originally Posted by back yard mechanic View Post
I am replacing the head gaskets on my 2003 F350 with the 6.0 diesel and need some help in finding out how to remove the high pressure oil line that passes down into the head from the oil rail. How do I remove it and do I need a special tool to do it? I can see a nut at the base of the line just above the head but there is not enough room to get a wrench in. Also does anyone know if the new ford head bolts any better then the original ones or should I go with the APR ones? The APR ones are very expensive!
That oil line has a quick connect fitting and it does require a special tool to remove however it is not difficult to release the connector using an improvised tool that will push the black ring into the connector to release the spring clip. The connector has a tendency to stick and requires a little force to separate it. I use a prybar to do so.

You can get a look at the tool (or buy) it HERE but it is a little pricey if you are going to use it once. Looking at it might help you fabricate something.

To complete a head gasket repair you need to correct the cause of the excessive combustion chamber pressures. Check your turbocharger as it may be causing an over boost condition and have your PCM updated to a current level calibration which will mitigate over boosting.
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Old 05-20-2011, 04:09 PM   #5 (permalink)
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I would put a new oil cooler in and save the factory bolts for something less important than a engine. They might make good scrap or a paper weight. As stated before the arps are about $400 shipped and not to hard to find for that price. Also make sure you have a clean flat mating surface and good heads. Do you still have a functioning egr system? Might also want to address that while ur there by welding up the cooler and making a delete out of it.
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Old 05-25-2011, 12:58 AM   #6 (permalink)
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