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Topic: primary fuel filter/primer assembly (Read 765 times) previous topic - next topic

primary fuel filter/primer assembly

After a lot o confusion, due somewhat to the beamalarm info, I was able to order the correct primary fuel filter assembly.  Here is the issue:  beamalarm recommended the Racor 12963 retrofit kit to replace the obsolete 90s1230 (or Winn 200200).  When searching the retrofit kit, I found different part suppliers that showed photos that resembled the original with plastic pre-filter.  On recommendation from members I was told the correct upgrade was Racor 790r30, which I had difficulty finding (not in ebay or Amazon).  I finally found info from Diesel Direct.  I looked up the 12963 kit then talked to a parts person about mailing info.  She asked if I had a motorhome and if the problem was leaking.  When I told her that was the case, she said the 12963 would not help, but suggested the 790r30.  I ended up ordering that on a two day USPS option.  Not to be sexist, I've found that most women will turn me over to a guy whenever I get the least bit technical.  I was very impressed with this lady who seemed to be very familiar with the parts discussed.  I'm relaying this, so hopefully, others won't go down the same "rabbit holes" I've been through.  It is possible that I misunderstood the info in the beam alarm page, but it was confusing to me; hopefully they will clarify or at least make some distinctions between the 12963 and 790r30.
2000 U320 mid entry  #5688
2006 Jeep Liberty


USMCR retired
SDFD retired
FEMA US&R TF8

Re: primary fuel filter/primer assembly

Reply #1
Sven and Kristi, when you install it, spray some anti corrosive into the electrical connections. I found severe corrosion on mine, so much that I have to replace the entire wire harness on my 790R30. Also had to reposition the switch as the PO put it in a space that was difficult to use, leaning over the batteries.  Otherwise its a good filter. I have a 30 micron racor filter in mine.
'99 U320 40 WTFE
Build #5462,
1500 Watts Solar 600 amp Victron lithium
2012 Jeep Grand Cherokee Overland Hemi
Instagram bobfnbw
Retired

Re: primary fuel filter/primer assembly

Reply #2
 The 790R30 assembly arrived today and I found an issue with matching up the wiring.
  The original has a connector with 6 prongs (3 double stacked).  The new one has 4 prongs in line off the fuel pump.  The accompanying control box has a matching 4 prong and 2 leads for connecting to the coach, plus a ground. 
My problem:  I have a 2 prong plug from the control box to match up with my coach's 6 prong (3 double stack).  It looks like the control box bypasses the original "air extractor" that is located at the back next to the start button (which I would prefer to keep).  If I were to keep the original primer control, how would I wire it?   
 Old wires from coach: 2 pink, 1 black, 1 red, 1 green, 1 white.  New wires from filter (not control box):  2 pink, 1 red, 1 black.  I'm assuming the green is ground and I  can ground that to the frame.  I'm left with a white wire.  Any suggestions on matching this up? 
In the meantime, I'll try to find the wiring diagram.
2000 U320 mid entry  #5688
2006 Jeep Liberty


USMCR retired
SDFD retired
FEMA US&R TF8

Re: primary fuel filter/primer assembly

Reply #3
Sven and Kristi,

You have to use the new Racor 790R30 control box which only have one button "Prime" as opposed to the old Winn system with 2 buttons "Air Purge" and "H2O Purge".  So it boiled down to you only need to connect 2 wires (+ & - batt) and a ground.

Racor 790R30 is a great system.  The new design no longer have the screen filter on top, it was out of sight and easy to be forgotten.  You'll not miss much of the old 2 buttons very soon.

Thanks,
Michael
Ex 2001 U295

 

Re: primary fuel filter/primer assembly

Reply #4
Thanks Michael, that makes sense.  I liked having the prime (air purge) next to the start button.  I'm guessing that the two pink wires are for the air and water purge (guess I can look at the back of that panel).
Sven
2000 U320 mid entry  #5688
2006 Jeep Liberty


USMCR retired
SDFD retired
FEMA US&R TF8