Nissan/Tohatsu fuel fittings

Discussion in 'Outboard Maintenance' started by TomFL, Jul 4, 2009.

  1. Jul 4, 2009 #1
    TomFL

    TomFL Well-Known Member

    3,524
    5
    1,893
    I'm a big fan of these motors, but the fuel fitting stink and are expensive.

    Are there any other fuel fittings that will fit on the motor? I thought I'd heard ther might be other fittings that will basically bolt on in place of the motor end male/female nissan/tohatsu ones.

    -T
     
    TomFL, Jul 4, 2009
    TomFL, Jul 4, 2009
  3. Jul 4, 2009 #2
    Brett

    Brett > PRO STAFF <

    7,316
    29
    1,903
    I think they're the same diameter as the Yamaha fittings
     
    Brett, Jul 4, 2009
    Brett, Jul 4, 2009

  5. Jul 4, 2009 #3
    TomFL

    TomFL Well-Known Member

    3,524
    5
    1,893
    Hmmm...I have a spare Yamaha male fuel, but it's the tank side, not engine side so I can't be sure...

    What I'm looking for is an alternative to the Nissan engine-side fuel line fittings, both male and female. I love these outboards, but I've found the fittings to be the only weak point on the motor. And they are usually pricey if you are forced to buy local (my local dealer is about $35 each for the two fittings!! Online they can be found cheaper of course, but the time is the bummer.

    This is what I need an alternative to: http://cgi.ebay.com/ebaymotors/New-Engine-Side-Fuel-Line-Connector-for-Nissan-Tohatsu_W0QQcmdZViewItemQQ_trkparmsZ65Q3a12Q7c39Q3a1Q7c72Q3a1171QQ_trksidZp4506Q2ec0Q2em245QQhashZitem45ecc7bcf8QQitemZ300325256440QQptZBoatQ5fPartsQ5fAccessoriesQ5fGearQQsalenotsupported

    It's kind of a bulkhead fitting. The male part is the part I'm stumped on as far as finding an alternative.

    -T
     
    TomFL, Jul 4, 2009
    TomFL, Jul 4, 2009
  6. Jul 4, 2009 #4
    Brett

    Brett > PRO STAFF <

    7,316
    29
    1,903
    Merc-san-hatsu...? :D
     
    Brett, Jul 4, 2009
    Brett, Jul 4, 2009
  7. Jul 4, 2009 #5
    noeettica

    noeettica Well-Known Member

    3,651
    99
    1,903
    I have Just Removed the fitting and run the hose out the hole .... You can put anything on the Hose ...Or just put a tank connector on it ...

    Dave
     
    noeettica, Jul 4, 2009
    noeettica, Jul 4, 2009
  8. Jul 4, 2009 #6
    beavis

    beavis Well-Known Member

    893
    0
    391
    what problems are you having with them?
     
    beavis, Jul 4, 2009
    beavis, Jul 4, 2009
  9. Jul 5, 2009 #7
    TomFL

    TomFL Well-Known Member

    3,524
    5
    1,893
    They leak!!

    One I've had in the past have had the plastic parts inside the fittings fall apart. The plastic "plunger" part.

    This set just flat out leaks bad, although both male and female connections look clean and in perfect condition.

    -T
     
    TomFL, Jul 5, 2009
    TomFL, Jul 5, 2009
  10. Jul 5, 2009 #8
    beavis

    beavis Well-Known Member

    893
    0
    391
    Have you tried replacing the Orings inside the fittings.
     
    beavis, Jul 5, 2009
    beavis, Jul 5, 2009
  11. Jul 5, 2009 #9
    Brett

    Brett > PRO STAFF <

    7,316
    29
    1,903
    The fuel fitting through the lower engine cowling can be replaced
    with any design fitting you want. unbolt, and replace.
    I looked at the parts diagram on line and it appears to be a simple installation.
     
    Brett, Jul 5, 2009
    Brett, Jul 5, 2009
  12. Jul 5, 2009 #10
    TomFL

    TomFL Well-Known Member

    3,524
    5
    1,893
    Can that be done???

    -T
     
    TomFL, Jul 5, 2009
    TomFL, Jul 5, 2009
  13. Jul 5, 2009 #11
    Brett

    Brett > PRO STAFF <

    7,316
    29
    1,903
    O yeah... ;D
     
    Brett, Jul 5, 2009
    Brett, Jul 5, 2009
  14. Jul 5, 2009 #12
    topnative2

    topnative2 Well-Known Member

    2,109
    268
    938
    all it takes are a few cold ones ;D

    merc owns 51% of tohatsu
     
    topnative2, Jul 5, 2009
    topnative2, Jul 5, 2009
  15. Jul 5, 2009 #13
    TomFL

    TomFL Well-Known Member

    3,524
    5
    1,893
    Alright, MR Google, I've searched and come up with nothing.

    Anyone have any input as to what size/material and where to get the o-rings?

    -T
     
    TomFL, Jul 5, 2009
    TomFL, Jul 5, 2009
  16. Jul 5, 2009 #14
    Brett

    Brett > PRO STAFF <

    7,316
    29
    1,903
    I pull the O-ring I need to match, and take it with me for comparison,
    the last one I purchased came from Ace Hardware.
    Northern Tools carries them also...

    http://www.northerntool.com/webapp/wcs/stores/servlet/NTESearch?storeId=6970&in_dym=1&Nty=1&D=than&Ntx=mode%20matchallpartial&N=0&Ntk=All&Ntt=o%20rings&cmnosearch=PPC&cm_ven=PPC&cm_cat=I-search%20(Google%20Adwords)&cm_pla=unproven&cm_ite=o%20rings

    O-ring material compatibility chart to match O-ring to fluid

    http://www.allorings.com/compatibility.htm
     
    Brett, Jul 5, 2009
    Brett, Jul 5, 2009
  17. Jul 5, 2009 #15
    topnative2

    topnative2 Well-Known Member

    2,109
    268
    938
    does he not just kill ya???? ;)
     
    topnative2, Jul 5, 2009
    topnative2, Jul 5, 2009
  18. Jul 6, 2009 #16
    TomFL

    TomFL Well-Known Member

    3,524
    5
    1,893
    Indeed he does :D

    Trouble is, I don't see any of those O-rings that are ethanol or alcohol compatible. Whether they are or not is open to debate, as neither is listed. Maybe that's the issue with the fittings in the first place?

    -T
     
    TomFL, Jul 6, 2009
    TomFL, Jul 6, 2009
  19. Jul 6, 2009 #17
    Brett

    Brett > PRO STAFF <

    7,316
    29
    1,903
    Ask your parts guy at the local merc dealer,
    he'll know more than I do.

    I'd replace the entire hose with a new OEM hose.
    If the O-rings are gone, I'd be questioning the reliability
    of the internal valves of the squeeze ball.
     
    Brett, Jul 6, 2009
    Brett, Jul 6, 2009
  20. Jul 6, 2009 #18
    TomFL

    TomFL Well-Known Member

    3,524
    5
    1,893
    That's the funny thing. The fittings and all look absolutely brand new, but leak like a sieve.

    They are clean inside and out, and nothing appears to be wrong with them.

    But, I had the same issue with the old 18 that I had, although they did not look brand new...
     
    TomFL, Jul 6, 2009
    TomFL, Jul 6, 2009
  21. Jul 6, 2009 #19
    Brett

    Brett > PRO STAFF <

    7,316
    29
    1,903
    Being an optimist, I'm positive I'll have problems at the worst possible time and place.

                                      :eek:

    If the hose is giving me problems at home, I can imagine the problems in the backcountry.
    Already been there and played that game. I'd get a new hose and eliminate the worry.
     
    Brett, Jul 6, 2009
    Brett, Jul 6, 2009
  22. Jul 6, 2009 #20
    TomFL

    TomFL Well-Known Member

    3,524
    5
    1,893
    **********NEWS FLASH**********

    Found a hairline slit in the female fitting's O-ring.... hard to see but it's there.

    Now off to find a replacement.......

    -T
     
    TomFL, Jul 6, 2009
    TomFL, Jul 6, 2009
Loading...
Similar Threads Forum Date
SOLD/EXPIRED Power Tech 4 Blade Prop for Nissan/Tohatsu 50 hp Sold/Expired Classifieds Mar 10, 2016
Nissan/Tohatsu extended warranty? General Discussion Sep 15, 2013
free nissan/tohatsu repair manual General Discussion Feb 17, 2009
SOLD/EXPIRED 2010 30hp Four Stroke Nissan/Tohatsu Sold/Expired Classifieds May 22, 2011
SOLD/EXPIRED WTB Nissan/Tohatsu 9.8 2 stroke Sold/Expired Classifieds Apr 26, 2011