2000 U320. Can't find both primary and secondary filters. The pic shows the one I found in the starting battery spot. I believe this must be the primary because I have a spare FS1001 which I think is the secondary per a previous post of spare parts but I do not have the FS19592 in picture? What is the clear bottle function? What is the bag thing hanging underneath? I think it has a hole in it. if this pic is the primary filter, I am assuming the WINN 200200 has been replaced with this setup. Would not surprise me, knowing what I have learned about previous owners.
If someone can point out where the other fuel filter is, I would appreciate it and any other information including correcting my assumption. I'm wanting to get a set of filters handy and know where they are, trying to learn some basics.
I have tried to find this information on forum, hopefully I didn't miss this information somewhere else's. Thanks in advance! Lonnie
Mine is on the engine passenger side at back of engine ( back meaning what you see when you raise the lid) under the air conditioner compressor
Chris
The clear bottle is the screen. They are prone to induce air leaks into the fuel system. They use four orings and I like carrring a spare. That filter operates under a vacuum from the fuel pump. Like Chris said its on the passenger side of the engine kinda in the middle. The bag is a catch bag for purge fuel from the water in fuel valve to prevent dumping on ground.
2001 U320 Fuel Automatic air purge Racor (https://www.foreforums.com/index.php?topic=41575.0)
U320 fuel screen (https://www.foreforums.com/index.php?topic=40443.msg402725#msg402725)
That is a Winn fuel filter.
The filter like you have pictured is at the back of my coacH beside the radiator tank where you add the water for the radiator in front of the ac compressor, the other one is under the coach on the passénger side by the slober pipe. It was set up like this on my 2000 and 2003 u320
The filter shown in the picture in the original post in this thread is the Winn filter system. It created problems for me by allowing air into the system in colder weather and I replaced it with a Parker Racor 790R30. Problems solved.
The secondary filter is on the passenger side like described it is beside the slobber tube, so may be covered up with dirty oil film making it hard to see.
Thank you all for the information. Obviously, I should replace the Winn 200200.
It seems most are going with the Parker Racor 790R30. However, it looks like 'old guy' has the Racor RK 12963 integrated kit and per the literature, looks to be a replacement for the Winn 200200. I'm not wanting to just go cheap but at $160 vs $550, I would rather buy more diesel and go somewhere if the RK 12963 is a good choice. Anyone care to help me understand the difference so I can make a more informed decision? Thanks again!!
I don't know whether or not the RK 12963 kit resolves the issues of the Winn system (because it's still the same basic system) that allowed air into my fuel system and left me stranded in colder weather—but I know that the 790R30 is a complete replacement and has not (over the past five years) allowed those air-leakage issues. For me (at least) it is well worth the added cost.
I had a Winn Fuel filters that I was not unhappy with but I went with the Fass Fuel system that I
changed to as I think it is a better filter system.
Correction... upon reviewing posts, it's Keith (HDFF) not "old guy" that looks to have the Racor RK 12963 integrated kit. Sorry about that.
I think the FASS is an excellent filtration system. I personally don't buy their hype about separating fuel and air and providing increased power but I do think it provides excellent filtration.
I went with the Davco filter system to replace the air sucking Racor unit. I've had lots of experience with this type filter in a fleet environment. The clear cover tells you exactly what the filter element condition is. It acts as both a primary and secondary filter so you only have one element to deal with. It is self priming on my ISM engine. The only issue is finding a place to mount it where you have enough clearance to remove the cover.
Did you actually bypass the fuel filter located nearer the engine or do you still have two inline fuel filters? It seems wise to me to have two individual fuel filters.
Im happy with it. If I ever change it will be for a FASS system. Yes they can be problematic if you dont maintain.
In my case a previous owner had installed the RK 12963 kit. After I experienced cold-weather issues I performed the appropriate maintenance and yet the cold-weather issues continued. I definitely recommend complete replacement with the Parker 790R30. It was straightforward and it's been effective and trouble-free.
Yes, I left the FS1001 engine secondary fuel filter in place which is a 10 micron filter. Since the Davco element is a 7 micron filter theoretically the fuel going into the FS1001 will be cleaner than it is capable of any additional filtering. They do make a block off plate if anyone wanted to remove the secondary filter.
Sorry, I don't understand.
Why would you not use a courser 10-30 micron PRIMARY filter followed by a finer secondary filter.
Any other design makes no sense.
Yes, first question is what YOUR engine's fuel system requires in terms of micron rating of filtration.
In any case, the primary fuel filter should have a courser micron rating than the final.
Brett, the Davco Fuel Pro fuel processor (aka fuel filter) does not require a secondary filter so the engine mounted filter is redundant. I could use a block-off plate but chose to just leave the secondary filter in place as it mostly serves the same purpose as the block-off plate. There are multiple micron ratings for Davco replacement filter elements in the 7-10 micron range. I just chose to use the same element that came with the new Davco unit.