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Thread: Fans to combat vapor lock?

  1. #16
    Join Date
    Mar 2004
    Location
    San Clemente, CA
    Age
    53
    Posts
    3,973
    Boat
    1997 2150
    It will crank or turn over fine. It just won't restart after a hot soak situation. No fuel is getting to the intake. After it cools off or you cool it off, it will restart like normal.
    Mike Allen, Tigé owner since 1997

  2. #17
    Join Date
    Jun 2005
    Location
    NorNev
    Age
    45
    Posts
    6,233
    Boat
    '00 22i Custom Fox Edition
    Quote Originally Posted by civilgee View Post
    Can someone describe the symptoms of vapor lock. I’ve got a 2000 2100v and after running, it get a little difficult to crank. I have to give it gas to crank.


    Sent from my iPhone using Tapatalk
    Rev the motor in neutral right before you shut it off. Should fire right back up next time you turn the key.
    You'll get your chance, smart guy.

  3. #18
    Join Date
    Mar 2012
    Location
    Lake Minnetonka
    Age
    30
    Posts
    323
    Boat
    1999 Tige 21v Riders Edition
    I have a 21v and used to run into this issue. I recently had to replace my ‘cool fuel’ pump, which was the only fuel pump in my boat, FYI. 350 MAG MPI, not Black Scorpion though.

    Long ago I upgraded my blower fan and replaced all of the tubing. Now, from the minute we set foot on the boat until after it is back on the lift, the blower stays on. Haven’t had an issue since I kept it running, for whatever reason. I started doing that about 5 seasons ago around 300 hours, now we are well above 800.


    Sent from my iPhone using Tapatalk

  4. #19
    Join Date
    Aug 2015
    Location
    Fenton, MI
    Posts
    48
    Boat
    PRE 2200 WT
    When I got my 1996 pre2200 / mag 454 ski - the fuel pump didn’t work, and with the awareness of vapor lock condition, I just got rid of the VST and mechanical pump all together. I replaced it with a high pressure / high volume - external pump with a fuel tank return line. This way I always have cold fuel th the fuel injection rail. It has been flawless for 3 years so far.
    I don’t think i would call it “marine grade” but I’m happy with it.

  5. #20
    Join Date
    Jul 2012
    Location
    Henderson, NV
    Posts
    674
    Boat
    '14 Z3
    Quote Originally Posted by mdk681 View Post
    Long ago I upgraded my blower fan and replaced all of the tubing. Now, from the minute we set foot on the boat until after it is back on the lift, the blower stays on. Haven’t had an issue since I kept it running, for whatever reason. I started doing that about 5 seasons ago around 300 hours, now we are well above 800.
    we did similar in the 2006 supra that had vapor lock issues and 3 seasons with never an issue again. basically would turn the blower on once boat was started and shut off once boat was shut off. blower became just like turning the key on... cheaper than the kit supra and others wanted to add an outboard fuel pump to solve the issue as 3 seasons and still on the factory blower...
    2012 22ve.. RIP 4/17
    2014 Z3.. Surf away

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