BB mod on 6.0L PS
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I don't believe the 6.0 has the reg in the filter base anymore .
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TDG has a tech write up about the mod. It's a cheap way to get the fuel pressure up.
Found it. Thanks. Looks like the BB adds about .17" shim assuming that a .177 BB slightly nests up into the spring coil. Gets you a pressure increase of about 10-15 psi. It was described that it helps the injection spray pattern. I thought the oil driven intensifier creates the high pressure. It would be the oil pressure behind intensifier that affects the spray pattern. No? Even if it's an additive association it does not make sense that 2000-3000 psi vs. an increase to 2010-3010 psi is going to significantly affect spray pattern.
Anyway I have a BB ready and as soon as a new o-ring/gasket kit arrives, the BB goes in. If this just keeps the fuel pressure higher to prevent injectors from getting an inadequate amount of fuel lubrication, I'm all for it.
Anyway I have a BB ready and as soon as a new o-ring/gasket kit arrives, the BB goes in. If this just keeps the fuel pressure higher to prevent injectors from getting an inadequate amount of fuel lubrication, I'm all for it.
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Just did this a couple days ago. I never heard anything regarding the increased fuel pressure affecting the spray pattern.
The reason I did it was to keep fuel pressures well above 45psi at WOT, because I had been getting close to that with my foot into a hot tune. Pressures at or lower than 45psi are said to be hard on injectors.
My idle pressure went from 53-54 to 62-63. 60mph they went from 50-51 to 60-61.
Have not yet checked the WOT pressures with a hot tune installed.
Keep in mind that folks say pressures higher than 70psi are hard on the injector o-rings. So I wouldn't recommend this mod if you don't have a way to monitor fuel pressure..
The reason I did it was to keep fuel pressures well above 45psi at WOT, because I had been getting close to that with my foot into a hot tune. Pressures at or lower than 45psi are said to be hard on injectors.
My idle pressure went from 53-54 to 62-63. 60mph they went from 50-51 to 60-61.
Have not yet checked the WOT pressures with a hot tune installed.
Keep in mind that folks say pressures higher than 70psi are hard on the injector o-rings. So I wouldn't recommend this mod if you don't have a way to monitor fuel pressure..
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It's for filtering coolant.... 
Casting sand is a concern for these engines. For some reason many blocks were put into service with casting sand left in the coolant passages, which clogs the oil cooler and EGR cooler and causes them to fail. That's the theory anyway. So you install a coolant filter to clean it out of the system and (hopefully) increase the life of your EGR and oil coolers.
Even if this isn't true, they certainly can't do any harm. There are hundreds of thousands of heavy duty diesel engines on the road that have a coolant filtration system installed from the factory.
Casting sand is a concern for these engines. For some reason many blocks were put into service with casting sand left in the coolant passages, which clogs the oil cooler and EGR cooler and causes them to fail. That's the theory anyway. So you install a coolant filter to clean it out of the system and (hopefully) increase the life of your EGR and oil coolers.
Even if this isn't true, they certainly can't do any harm. There are hundreds of thousands of heavy duty diesel engines on the road that have a coolant filtration system installed from the factory.
Is there any signature wear on the EGR that can be identified as wear from sand?
It's easy to pull the EGR and look for some type of wear associated with sand entrained in the coolant and then make a decision on adding a filter if that wear is present.
It's easy to pull the EGR and look for some type of wear associated with sand entrained in the coolant and then make a decision on adding a filter if that wear is present.
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My understanding is that sand plugs the oil cooler first because it is upstream of the EGR cooler. This slows the coolant flow through both coolers, so much so that the lack of heat removal from the EGR cooler causes the internal soldered fins to fail.
So if you want to look for abrasion from sand particles, or coolant passage blockages, the oil cooler would be the place to do it.
The best way to monitor whether or not this is happening is to monitor an oil temp gauge and a water temp gauge. If ever the water and oil temp differ by more than 25 degrees (can't remember the exact figure, but this is close), then the oil cooler should be replaced.
I figure the coolant filter is still a good piece of equipment to have, since nothing in the system appreciates sand and other deposits (such as deposits from tap water or anythings else being introduced into the system).
So if you want to look for abrasion from sand particles, or coolant passage blockages, the oil cooler would be the place to do it.
The best way to monitor whether or not this is happening is to monitor an oil temp gauge and a water temp gauge. If ever the water and oil temp differ by more than 25 degrees (can't remember the exact figure, but this is close), then the oil cooler should be replaced.
I figure the coolant filter is still a good piece of equipment to have, since nothing in the system appreciates sand and other deposits (such as deposits from tap water or anythings else being introduced into the system).
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