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Conference vicki::boats

Title:Powerboats
Notice:Introductions 2 /Classifieds 3 / '97 Ski Season 1267
Moderator:KWLITY::SUTER
Created:Thu May 12 1988
Last Modified:Wed Jun 04 1997
Last Successful Update:Fri Jun 06 1997
Number of topics:1275
Total number of notes:18109

861.0. "Evinrude outboard fuel problem?" by SNOWY::HEDRICK (South Central Regional Support Engineer for now!) Tue Jun 18 1991 13:27

Hello me again,

Another problem.  I have a Evinrude 115 hp outboard.  I can be going and all 
of a sudden, it seems like the motor bogs down.  I can go and look at the 
ball that you prime the motor with and it is totally collapsed.  I figure there
is either too much suction, or the gas tank has a clog in it.  I have put a new
gas line it with a new squeeze ball on it. This didn't seem to matter.  My 
question is, do I have a problem in the motor????  Any takers??

    By the way, my last alternator?? problem has not resurfaced yet! 
    Thanks for the input on that problem
    
Thanks,

Glenn
T.RTitleUserPersonal
Name
DateLines
861.1PLUGGED VENT?MR4DEC::DCADMUSTue Jun 18 1991 14:0212
    
    You have either a plugged gas line between the tank and the primer bulb
    or a plugged vent. Are you using a built-in tank or a carry-on tank?-
    ,ake sure the vent screw is open on the carry on tank or in the case of
    the OM+C tanks that the vent valve opens when you hook up the fule
    connector. Ifr it is an on board tank, check the screen in the vent
    fitting. Lots of these vent fittings are made of white metal and the 
    metal corrodes to the poiut where it plugs up the screen.
    
    YOu definitely have a problem on the suction side of the primer bulb.
    
    
861.2Check the fuel capMCIS2::MACKEYTue Jun 18 1991 14:031
    Make sure the cap on the fuel can is venting correctly.  
861.3Are you using last year's gas?MSCSSE::FRENCHBill French ZKO3-3/X8 381-1859Tue Jun 18 1991 14:438
    I had a similar problem - the motor would run fine for a while and then
    stall (when under full power). I found lots of little balls of gum in
    the gas. Apparently they were clogging the strainer. It was old fuel
    from the previous season. Once I rinsed the tank out and used fresh gas
    with stabilizer, the problem never happened again. I don't know
    if my primer bulb was collapsed or not.
    
    Bill
861.4Sounds like a new tank would fix this!!DENVER::HEDRICKSOUTH CENTRAL REGION SUPPORTWed Jun 19 1991 14:098
    OK,
    
    Sounds like good info.  I plan to buy another 12 gallon carry-on tank
    today and this should eleviate my problem if it is on the bulb side.
    
    Thanks for the inputs, I will let you know.
    
    Glenn
861.5Send me your old one...GOLF::WILSONThis area closed for renovationWed Jun 19 1991 14:238
    
    RE: .4
    
    You made of money?  8*)    The problem could be as simple as opening
    a vent, replacing a defective cap, or cleaning the fuel pickup tube
    and/or filter in the tank.   I don't think I'd buy a new tank just yet.
    
    Rick
861.6Sometimes node-names can be mis-leading!!DENVER::HEDRICKSOUTH CENTRAL REGION SUPPORTWed Jun 19 1991 18:0312
    Rick,
    
    Didn't you know!! All TEXAN's own oil wells!!  No, seriously I need
    another gas tank anyway.  All I have for now is a 6 gallon tank, and
    that goes dry to quick.  After cleaning/checking trouble areas, I will
    still need another tank.  This way I can have 12 gallons.
    
    I will try all ideas tonight.
    
    Thanks,
    
    Glenn 
861.7Probably in the gas tank filterDENVER::HEDRICKSOUTH CENTRAL REGION SUPPORTFri Jun 21 1991 15:5014
    Here's what I did.  I took the gas line and checked it. It seemed to be
    OK.  I took the black part off of the tank, which holds the float and
    the tube/filter.  I tried blowing through the filter to see it come out
    of the top and couldn't do.  I found there are two little nipples that
    have to be recessed to get flow through this tube/filter.  I pushed
    them in and still tried blowing through the filter and couldn't get it
    to go through.  I banged/beat it around a little and still no luck.  So
    I came to the conclusion that my problem is in this part.  My new gas
    tank I ordered should be in Monday or Tuesday.  
    
    
    Thanks for the help, I will have more later.
    
    Glenn
861.8New tank fixed the problem!!!SNOWY::HEDRICKSouth Central Regional Support Engineer for now!Thu Jun 27 1991 15:438
    Well,
    
    I received my new tank.  Filled-up and mixed oil.  Ran thirty minutes
    with no problems.  Guess I'll trash the old gas and try to do some
    cleaning on the old tank, and use it as back-up.  Many thanks for all
    the help!!
    
    Glenn
861.9REPLACE THE "INNARDS!"MR4DEC::DCADMUSThu Jun 27 1991 15:567
    
    If you have the "typical" factory OMC tank, tou can replace the fuel
    pickup/conncetor assembly- there are 4 srews that bolt it to the tank-
    LOTS cheaper than a new tank.
    
    Dick
    
861.10same problemFSOA::DBROSNIHANWed Jul 17 1991 16:5713
    I have the same motor and was just having the same problem, I did the
    following and it fixed the problem,
    
    	1. I changed the fitting on the inboard tank
    
    	2. cleaned the vent for the inboard tank
    
    	3. replaced the fuel line from the fitting on the engine case to
    	   to the fuel pump.
    
    	4. pulled the filter off before the pump (where the thumb screw is
           and it says filter), that had some gel type substance on it
    	   which I beleieve was old gas. No more problems.  
861.11Revivable small outboard?SPARKL::JOHNHCWed Mar 16 1994 12:2024
    Last fall I took a gallon of gas with me on an upstream voyage for my
    3hp Evinrude. When the outboard ran out of gas, I filled it from the
    gallon can. This was how I always did it. 
    
    Well, unbeknownst to me, one of my summer visitors had taken one of
    mixed-fuel containers and filled it with straight gas for the
    lawnmower. (This was undoubtedly my fault for not making it clear that
    the 5-gallon container in the shed was for the lawnmower.)
    
    Anyway, the outboard froze within seconds of restart.
    
    It's been stored inside all winter.
    
    Now my questions:
    
    Does anybody have any sense of whether the motor is recoverable?
    
    If yes, can somebody give me a hint or two on what I might do?
    
    Yes, if I can't do anything myself, I'll give Rick Wilson a call.
    
    Thanks.
    
    John H-C
861.12A little costly....KAHALA::SUTERNever too Hot!Wed Mar 16 1994 14:1912
    
    John,
    
    	Sounds like a full rebuild to me. Get the piston(s) out of
    it, Cylinder bore, New rings, crank bearings, machine the crank
    maybe, new piston(s) maybe.... The moderately mechanically inclined
    should be able to fix it up or as you've already hinted give the
    motor to Rick and toss him some bucks...
    
    	I bet you won't make this mistake again, huh?
    
    Rick
861.13UNIFIX::BERENSAlan BerensWed Mar 16 1994 14:388
re .11 and .12:

Aw, gee, don't be so pessimistic. The fix might be as simple as 
replacing the piston and gently sanding any aluminum residue off the 
cylinder wall. Back in my two-stroke motorcycle racing days I seized 
many a piston without damaging the crank or bearings. 

Alan
861.14HERE'S WHAT I'D DO FIRSTMR3MI1::BORZUMATOWed Mar 16 1994 16:5517
Set the motor down on its front, remove the spark plug and leave it

out. put some penetrating oil in, and leave it sit for awhile.

check each day add more if needed.

couple days later, try pulling the rope and see if its free.


if not give to rick wilson.


if it stopped that soon after starting i doubt you've done that much

damage.

JIm