Page 1 of 2 12 LastLast
Results 1 to 10 of 14
  1. #1

    Default 2008 moomba lsv no start

    5.7 l indmar I have got good spark I have fuel all the way to the rail yet the plugs are dry and won't fire could the fuel pressure be to low? I can't think of anything else please help !!!

  2. #2
    Join Date
    Jun 2009
    Location
    South West Colorado
    Posts
    360

    Default 2008 moomba lsv no start

    It might be worth popping the injectors off to see if they are gummed up and if you get the fuel pressure relief.
    '08 Mobius LSV, Mods- 1100 lb Rear Sacs, IBS Sac, Center 400 Sac, Dedicated thru-hull intakes and pumps per sac, SeaDek One Piece Mica over Black Roo, EZ Net Cargo Nets, Swivel Drivers Seat, Hot Water Shower, Hinged Wind Block, Bow Cushion Adapter Plate for Drink Holders Access, etc, etc.

  3. #3
    Join Date
    May 2009
    Location
    Carlton Oregon
    Posts
    6,028

    Default

    Very possible your fuel pressure is to low. Last year on my Vette I had pressure at the rail but it wouldn't start. Replaced fuel pump it fired right up.
    Malo <--- Means--Evil or Mean One. This explains a lot.
    2013 Mojo 2.5 Skylon Tower. Bestia < Beast >
    Exile ZLD
    6 SX65M Cabins
    6 XM9 Towers
    1 XI Big 15 Woofer in a custom Fiberglass box
    1 XI 1K Harpoon
    2 XI 800.4
    1 XI 2500.1
    2 Interstate 2400U 6V Golf Cart Batterties
    Custom 1 Off Evolution Cover

  4. #4
    Join Date
    Nov 2010
    Location
    Katy, TX
    Posts
    4,184

    Default

    get a test light and make sure your injectors have power, ground the test light and test both wires to the injectors, if one of them should cause the light to flash. also check the actual fuel pressure, you can rent a fuel pressure gauge from a local auto parts store for cheap. should be around 40-50 psi i would think.
    David

    2008 Mobius LSV, Gravity III , Wake Plate, Z5, Exile SX65c's, Exile XM9s, Exile XI12D, Exile Harpoon, Exile SM600.1 , Exile Xi800.4.

  5. #5
    Join Date
    Nov 2003
    Location
    Land O Lakes, Florida
    Posts
    5,871

    Default

    um, is the kill cord connected properly. just don't ask why im asking
    Hey, Its Moomba time

    13 Mobius LSV
    08 Mobius LSV-sold
    03 Mobius LSV-sold
    life is about finding the balance between being a responsible adult and staying young at heart

  6. #6
    Join Date
    May 2012
    Location
    Louisville ky
    Posts
    1

    Default

    Try the oil pressure safety switch haveing same problem with my xlv 5.7. Done everything, my last resort is this oil pressure safety switch. It has there wires one of supposedly relay to the motor that the oils pressure is up so the fuel pump will kick in. I dunno trying today my weekend was already ruined and not to mention I spent 500$ at a shop and it still doesn't work.

  7. #7
    Join Date
    Apr 2014
    Location
    Roanke, VA
    Posts
    26

    Default

    X2 on the oil pressure switch
    Yellow over White 99 Mobius 21'open on jet black double axle

  8. #8
    Join Date
    Mar 2014
    Location
    Park City, Utah
    Posts
    249

    Default

    In Neutral? Even if it looks like it is it may not be, put it in gear and back out. Yes, I learned this the hard way!
    2006 Mobius LSV
    2004 Stingray 190LS - Sold
    2013 RAM 2500 Diesel - Tow Rig

  9. #9
    Join Date
    Mar 2012
    Location
    Richmond, VA
    Posts
    31

    Default

    X3 on the oil pressure switch. I had this problem a couple of years ago.
    2014 MOJO 345 Surf
    2005 Mobius LSV, carb - Sold

  10. #10
    Join Date
    Nov 2013
    Location
    West of ATL
    Posts
    158

    Default

    I'm curious. I also have issues starting my 08 LSV in the morning it can take 10 to 15 turns of the key to finally get the engine running. After running for a while in order to restart I find that if I turn the key, hear the fuel pump kick in, and try to start it won't. But I'll the push the throttle forward to kill the starter while holding the key in the start position then bump the throttle back to neutral it will start but I have to throw the throttle froward a little to keep it running.

    Could I have a problem with the oil pressure switch. It reads normal oil pressure while running and I put about 15hrs on the boat over the long weekend and it ran fine.
    2008 LSV

Posting Permissions

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