Vais01

Filled up at 2.29 per gallon down here in the Houston area. It was 2.25 at another station I'd rather fuel up at but there wasn't enough time to head there and do what I needed to do.

Personally I'd like seeing lift pressure around 17 PSI at idle and above 14 at wide open throttle. The overflow valve opens at 14 PSI so anything less your fuel just sits at the VP44 and traps heat. If there is a way to adjust your fuel pressure I would definitely bump the pressure up.

The temp is measured in the pump where the VP electronics are. The fuel in the tank probably sits around 100 to 120 degrees max.

The fuel line isolators take 4 ft lb of torque. I would tighten them hand tight and then just give them a light bump with a finger. A drop of blue loctite will help seal the threads and keep everything together. I've pulled lines separately before you have to use alot of caution is all.

10-4 bud did this get rid of your skip? Just went through your build thread good stuff and good choice using QSB marine pistons.

Internal pump seals should be Viton also my fuel temps gets up to 160 degrees F with regularity and the hoses on my truck are cracked everywhere. These Eaton hoses are very poor quality.

Yes I have but the spec calls for 28 ft. lb. of torque and it has every bit of it that's why I'm thinking something is damaged. Chances are I'm going to have to remove and replace the individual line and loosen #6 injector hold down and reinstall the connector tube with a new o-ring just to be sure.

It's number 6 only. Fuel is seeping out of the head at the threads. I call it a low pressure leak because it is not full injection pressure which begins around 295 BAR.

Is it possible to pull the connector tube only and not have to pull the injector? I'm afraid I already know the answer to this.

Yes cam sensor will cause a no start condition to occur if it's totally shot but it would throw a CEL. Cycle the key from off to on 3 times leaving it on the last time. The odometer will display the codes related to the problem. Crank sensor will also cause this problem.

Guys I've got a small leak on #6 injector line area. It's a small trickle of fuel nothing spraying or pouring out just a steady drip. Has anyone experienced this on their truck and what fixed it? I had the injectors replaced around January and no leaks at the time at all. What are the chances that the fuel line ferrel is cracked and spraying high pressure fuel?

I get them at a local Grainger. It's about the same price online. These filters and Rotella T6 have allowed me to go 10,000 miles before an oil change. I used oil analysis to help get me that information.

Are you using an aftermarket lift pump? Scratch that I missed you have an Airdog 165. If you contact airdog they will say the hose is made specifically for them and the tube(part that touches the fuel) is made of Viton which is chemically resistant to biodiesel. Now after some research of my own I have found that the hose uses is an Eaton Boston series hose. Thus particular hose is not the best of quality and according to a few vendors is not capable of safely running bio blended fuels. B5 is as high as you want to see with these hoses. I myself will be replacing these hoses in the near future with some Parker Superflex 397 series hose. Just use caution when fueling up and avoid anything higher than B5 until you have better hoses.

So guys I've got an update the Baldwin BD7317 media holds 13.3 grams and the full flow is 20 micron the bypass portion is 5 micron. Local Cummins shop uses the Fleetguard version with regularity for on and off highway applications. I spoke with the Baldwin reps and an engineer and the Baldwin BD7317 has a greater flow capability than the Fleetguard filter. 20 micron 98.6% and 5 micron at 50%. My oil temps and pressure are the same as the LF16035 when using the Baldwin BD7317. When using the Fleetguard LF9028 my temps are 10 degrees higher on average.

I have gone through my books and several PDF files with no success of finding the mmaximum temp.

Yesterday I spoke with 3 Bosch qualified builders of VP44 pumps and the internal seals are all made up of viton and biodiesel has little to no effect on viton. Cummins reps said the VP44 on our trucks as long as it is a newer rebuild can safely handle up to B20 without issue but it's recommended to use B10 or lower.

Through my Quadzilla's data logger.

Several links I have seen state not required but I am looking into it more. I'm sure it's only a matter of time before some type of standardization is done.

I would think the temp is monitored within the VP44 within the electronics cooling section. Now as far as temps go I will check my book to see if the min-max values are listed.

On my rig I have seen fuel temps as high as 180* F. About 150* F is common. Just out if curiosity I'll keep tabs on the data logger and see what my fuel temps become after several short trips and possibly a long one.

Not to be rude but I have been saying this since much earlier in the thread. Up to 5% biodiesel or renewable diesel does not require labeling.

You can add PKR as a non compatible hose material also and I would say alot of folks here have lines on their truck with PKR tubes. If you are running Parker Push-Lock lines you have PKR. Nylon tube lines are recommended for running biodiesel blends up to and over B20. As far as have seen there are several variations of biodiesel from low cloud to high cloud. Low cloud non-distilled, Low cloud extruded, Low cloud distilled, Mid cloud, Mid high cloud and high cloud. Obviously low cloud would be best to use but has a higher cost associated with it. Instead what is done is using what's appropriate for the conditions expected. According to a few OEM charts there are 3 primary fuel blends. #2, winterized #2 and #1.

Yes, CSM I have only after you posted it. I have seen similar things also but it seems things like this are a rarity.

I am very aware what Cummins says about the use of Biodiesel blended fuels and I am also very well versed in the steps to take when the use of biodiesel is to be used. As a matter of fact the key thing from holding me up from utilizing higher fuel blends other than B5 is I do not know if there is anything within the VP44 that can handle biodiesel blends. Also food for thought go to a fuel station and if you do not see a posted tag on the pump stating the use of biodiesel blend it means that 5% or less is being used. The fuel companies do not have to post the percentage of biodiesel used if it is 5% o below. Now that you mention this Cummins posting also says they still have no word on using 5% biodiesel blends on engines older than 2002 aka VP44, P7100, VE, CAV injection pumps and Stanadyne injection pumps.

Oh yeah a whole lot of drag.