That is why the pressure tests are in the troubleshooting section of the shop manual. It is hard to follow your diagnosis steps and I am assuming by "processor "you mean fuel filter. You can speculate forever, and ask as many questions you desire from. My light did illuminate before the sight glass was full last year, even though the PDF says it can fill to the top before a change and drain is needed. Needless to say one does not want to tighten these too much. Has anyone heard what has happened to Sean and his fuel and overheating problems? DAVCO Announces New Fuel Pro Options for North American Commercial Truck Market. Davcophaelia: [ N. dav-koe-fal-I-ah] A fetish for ownership of Davco fuel filters. Sean why dont you just junk your bus seems to have a lot of problems. I'm not sure how to test this particular hypothesis, though (suggestions welcome). Tell me more | Cookie Preferences. So my fingers are crossed that our problems are behind us.
Rather than a pinhole leak causing your filters to drain and stopping your bus, you have a site where you can see drops of fuel and repair the line at that point -- with the obvious differenc that your bus doesn't lose prime and stop on the side of the road. Like one said, check your sight glass on that 382. That said, the Davco Fuel Pro emptied out again on today's drive, and the coach, subjectively, feels a bit "sluggish" (although definitely not the level of problem we were having in Santa Fe). However, I am looking for some fittings so that I can bypass it if this turns out not to be the case. Push-On: Most filters will feature small protruding tubes that slide into the fuel line hoses, sometimes secured by clamps. It was suggested by another owner, I might drain some fuel from the bottom of the tank, but I have not had an opportunity to do that yet, but I think I could purchase a pan and some containers and do that if the petcock is willing to be opened. And, if this thing turns out to be leaking, I will likely take your (and John's) advice and go back to a spin-on primary. I would first remove the fuel filter and make 100% sure the orange flap valve is there, this is the anti-drain back valve. I think you have a restriction in the line.... Has the tank ever been cleaned or checked for dirt, esp at the pickup in the tank? And it seems to me that if Sean had a positive flow of fuel from the tank through his high-tech filters, he'd have much less problem tracing down the problem that he has. I used them in my old airplane hydraulic fittings which were 1200psi plus, both in hydraulic components and the brake system. 5 Ways To Deal With Davco Fuel Filter Not Staying Full. It saves hours of guess work on fuel delivery problems. We were working on a Kubota diesel generator 2 weeks ago.
The frustrating part of suction side leaks is there is no fuel leaking because air is entering, nothing is leaking out. Davco fuel filter not staying full version. A situation like dry filters or fuel starvation after the filters would indicate clogged or dirty filters or a clog somewhere between the gauge and the filters. If you unscrew the black knob it will pop out (with some help from you) and you can pump diesel fuel from your tank directly into the Devco 382 filter. I bought a fuel filter at Flying J but when I look it up it's a 25 micron and my engine calls for a 10 micron.
DAVCO products are designed for tough commercial applications including On and Off-Highway, Industrial, Gen Set, Construction, Military and Marine. Your continued use of the Service after we post any modifications to the Privacy Policy on this page will constitute your acknowledgment of the modifications and your consent to abide and be bound by the modified Privacy Policy. It's the easiest, most cost effective, and most visual way to go about it. Tomorrow I will take the thing apart again and double-check for cracks or bad O-rings. If you can do this all from engine compartment, it is easier for communication. The fuel filter is not staying full. Davco fuel filter not staying full on new. Gus, I think the obstruction occurred during the rebuild, even before I left PEDCO. NOTE: is not affiliated, nor endorses any of the google ads that are displayed on this website. Sounds positive at this point. When we put it in, the problem got WORSE. Again, this might not be useful on all N American built buses (or indeed any N American buses), but it sure is a big help in increasing the reliability of buses that I'm familiar with.
I check all the lights on my dash and I do not have any light with a label that seems appropriate for that function. Mount the Fuel Pro keeping the following points in. Should I be concerned, or does the level sometimes go below where you can see if shortly after a filter change? Start the truck and see if you are having the same issue. Dependent on the engine model year. I am going to spray some energy release or penetrating oil on the bottom tightener tomorrow, and get it off and replace that gasket. That's why I was thinking the housing base is bad and is somehow bypassing the filter. Davco fuel filter housing. Radiators do get solder bloom at the ends of the tubes over time which can decrease cooling ability gradually over time. I still haven't found a replacement switch, so tomorrow I will put the original one back in and see if it's working now. Although rare, there have been occurances of hydraulic brake hose (which is highly regulated and with multiple material layers), to have a collapsed inner liner.
Username: Buellhans. This ensures no water will pass the filter, particularly for ultra-low sulfur and biodiesel fuels, which have become difficult to separate, DAVCO says. This is not the "root cause" of the problem. Problem with Davco fuel filter sys, maybe. Else is telling you has to be done: Use the process of elimination to. T communicate with the computer.. Will probably need to tee temporary into this pressure with engine operating against the governor- 21 to 2400- should be 50 to 70 psi. After the air is purged.
What is the purpose of the restrictor orifice and exactly where is it? Also, if one of the bowl seals (lower O-ring or vent plug gasket) is the source of the failure, I should be able to work around it, in the short term, by running a spin-on down onto the stud, correct? Also, check for worn internal parts. Tightening the collar with the wrench—simultaneously. So clean filter low level in the dome. I'm pretty sure now that this is why the fuel supply line was tightened so hard that I needed to make a come-along to loosen it.
I had to make a trip so took off hoping problem solved. How Do You Unclog a Fuel Filter? Make sure your engine isn't starving. I have fueled strictly at Flying J's and moved a lot of fuel through the coach in a short time.