Page 1 of 2 1 2 LastLast
Results 1 to 10 of 15
  1. #1
    Matatan tocullo's Avatar
    Join Date
    Nov 2010
    Location
    VISTA AL RIO FL
    Posts
    1,725
    +1
    69

    Fuel pressure regulator???

    Know I'm confuse!! I just remove the DIY set and mounted the riva sel up and my fuel pressure stays up even though I have the key remove from post. When I had the DIY the fuel pressure was up only with the key on post as soon the key was remove pressure drop. Is this normal with the riva set up?


  2. #2
    GRF + DashPac:) seadoo02xp's Avatar
    Join Date
    Apr 2005
    Location
    MO
    Posts
    4,559
    +1
    948
    Yes this is normal and a good thing

  3. #3
    Moderator Snoman's Avatar
    Join Date
    Apr 2006
    Location
    South Chicagoland
    Posts
    14,688
    +1
    846
    Quote Originally Posted by seadoo02xp View Post
    Yes this is normal and a good thing
    If it drops off why is that bad???

  4. #4
    Matatan tocullo's Avatar
    Join Date
    Nov 2010
    Location
    VISTA AL RIO FL
    Posts
    1,725
    +1
    69
    Quote Originally Posted by Snoman View Post
    If it drops off why is that bad???
    Yes, why? With the DIY was dropping and now with the riva stays up!! I'm confuse...

  5. #5
    Banned User
    Join Date
    Sep 2009
    Location
    Aussie Land
    Posts
    804
    +1
    21
    Its good to stay up.

    But depends on the valving setup.
    Some return lines on regulators are 'normally open' or 'normally closed' too.

    I'm unfamiliar with either of your setups, but others may have something to say about those kits.

  6. #6
    Moderator Snoman's Avatar
    Join Date
    Apr 2006
    Location
    South Chicagoland
    Posts
    14,688
    +1
    846
    LOL...both of my skis have Aeromotive Regs and Walbro fuel pumps..Neither ski holds pressure when Shut down...Some say the fuel pumps were bad if your pressure dropped...Im curious as to what people have to say, and why it is bad when fuel pressure is not held on shut down....


    Quote Originally Posted by lolzer View Post
    Its good to stay up..
    Thats what Mrs.Sno says.....

  7. +1 by:


  8. #7

    Join Date
    Sep 2010
    Location
    South Florida
    Posts
    1,599
    +1
    123
    Quote Originally Posted by Snoman View Post
    LOL...both of my skis have Aeromotive Regs and Walbro fuel pumps..Neither ski holds pressure when Shut down...Some say the fuel pumps were bad if your pressure dropped...Im curious as to what people have to say, and why it is bad when fuel pressure is not held on shut down....




    Thats what Mrs.Sno says.....
    Walbro pumps and RRFPR's in both skis. Fuel pressure drops immediately after shut down. Skis run perfect.

  9. #8
    GRF + DashPac:) seadoo02xp's Avatar
    Join Date
    Apr 2005
    Location
    MO
    Posts
    4,559
    +1
    948
    from my experience in the automotive side of things anytime pressure drops off is a good sign of a failing pump, not saying your pump is failing or anything is wrong with your ski, just carrying what i know over to skis, my walbro with a riva rrfpr stays above 40 psi even after the ski sits for 2 weeks,

  10. #9
    Banned User
    Join Date
    Sep 2009
    Location
    Aussie Land
    Posts
    804
    +1
    21
    As I understand it,
    Instant drop off = Normally open return = OK
    Gradual decline in pressure over 3-10 secs (or longer)= Sign of pump leak in a normally closed return line setup.

  11. #10
    Moderator Snoman's Avatar
    Join Date
    Apr 2006
    Location
    South Chicagoland
    Posts
    14,688
    +1
    846
    Quote Originally Posted by Glade Rider View Post
    Walbro pumps and RRFPR's in both skis. Fuel pressure drops immediately after shut down. Skis run perfect.

    Yup,so whats wrong with my system????



    Quote Originally Posted by seadoo02xp View Post
    from my experience in the automotive side of things anytime pressure drops off is a good sign of a failing pump, not saying your pump is failing or anything is wrong with your ski, just carrying what i know over to skis, my walbro with a riva rrfpr stays above 40 psi even after the ski sits for 2 weeks,

    Ya i have never had a ski hold pressure after shutoff on either the aeromotive or the turbosmart regs....my fuel pumps are a year old as are the regs....i run a seperate open return to my tanks as with no check valve in place....and with the walbro not having a check valve in them there is no way for fuel pressure to hold in my setups after shut down...I am curious as to what others have to say as they have told me in the past and present my setups are failing and should replace my stuff....lol..

Page 1 of 2 1 2 LastLast

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. Installing Fuel Pressure Regulator
    By Red Devil in forum 4-Tec Performance
    Replies: 8
    Last Post: 12-17-2007, 09:19 PM
  2. P-Parts fuel pressure regulator....
    By TCR in forum 4-Tec Performance
    Replies: 0
    Last Post: 07-27-2007, 12:48 AM
  3. how to install this fuel pressure regulator?anyone know?
    By novice_4 in forum 4-Tec Performance
    Replies: 24
    Last Post: 05-23-2006, 12:18 AM
  4. fuel pressure regulator
    By Pale Rider in forum 4-Tec Performance
    Replies: 15
    Last Post: 04-26-2006, 06:23 PM
  5. Fuel pressure regulator
    By Pale Rider in forum 4-Tec Performance
    Replies: 3
    Last Post: 04-11-2006, 06:14 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •