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Equipment & Gear => Power Equipment & RV => Topic started by: CP on September 25, 2022, 07:52:09 AM

Title: Yet another outboard problem
Post by: CP on September 25, 2022, 07:52:09 AM: Suzuki DF70 – Last time out I’m running from Mukilteo to area 10 to catch some Coho that I don’t have to throw back. I’m doing about 5500 rpm, 30 mph, water’s flat and calm. All is well until the oil light comes on and the rev limiter kicks in. I turn it off, check this and that. Oil on the dip stick checks out, motor isn’t hot. Restart, and the light comes right back on. It’s in limp mode and I don’t want to run it anyway with an oil problem so I turn it off and putt back to Mukilteo with the kicker. 4mph, 14 miles – :bash:.

When I get home, I check the oil, viscosity looks fine. I check the filter, clear, no obstructions but there is no oil in it.
I changed the oil.
I checked the oil pressure switch, no problems found with it.
I ran the engine for a few seconds with the filter off. It should have gushed oil everywhere, but not a drop came out.

Oil isn’t pumping - :dunno:

What to check next? I think that know the answer and it involves pulling the powerhead from the oil pan :tdown:. Before I do that, is there anything else I should check?
Title: Re: Yet another outboard problem
Post by: ASHQUACK on September 25, 2022, 08:39:08 AM: How old is the motor. I had a couple of buddies that had this happen out of westport. Sane exact scenario, had to call coast guard for a tow in. When they took the motor to the mechanic, he pushed the hour reset button for an oil change. Fired up ran like a top. Why they'd put something like that on an outboard is beyond me.
Title: Re: Yet another outboard problem
Post by: CP on September 25, 2022, 08:49:31 AM: The motor is a 2000, maybe a 2001. I’ll need to lookup the serial #. I don’t think this model has an oil change warning monitor. Just in case, I ran through the reset procedure.

Take the key out
Put the key in
Turn the key on
Pull the kill switch 3 times within 10 seconds

Didn’t do anything.
Title: Re: Yet another outboard problem
Post by: GWP on September 25, 2022, 09:29:18 AM: Quote from: ASHQUACK on September 25, 2022, 08:39:08 AM
How old is the motor. I had a couple of buddies that had this happen out of westport. Sane exact scenario, had to call coast guard for a tow in. When they took the motor to the mechanic, he pushed the hour reset button for an oil change. Fired up ran like a top. Why they'd put something like that on an outboard is beyond me.

Wow! A warning is one thing, compromising the performance of the engine is a whole another level of dangerous!
For the OP, sounds like a tear down. Good you shut it off. Probably saved some damage.
Title: Re: Yet another outboard problem
Post by: BigGoonTuna on September 25, 2022, 10:22:49 AM: Quote from: ASHQUACK on September 25, 2022, 08:39:08 AM
How old is the motor. I had a couple of buddies that had this happen out of westport. Sane exact scenario, had to call coast guard for a tow in. When they took the motor to the mechanic, he pushed the hour reset button for an oil change. Fired up ran like a top. Why they'd put something like that on an outboard is beyond me.
had an old 40 Yamaha that did that to me. Thought my coils were going bad until I learned that if the oil reservoir got below 1/3 full it would kick a rev limiter in :yike: bad news if you needed to be able to get on step (had a jet on mine)
Title: Re: Yet another outboard problem
Post by: CP on September 30, 2022, 09:39:40 AM: Camshaft broke where it interfaces with the oil pump.
Title: Re: Yet another outboard problem
Post by: Stein on September 30, 2022, 09:48:51 AM: Were you racing again CP? :4w:
Title: Re: Yet another outboard problem
Post by: CP on September 30, 2022, 10:01:34 AM: No, just dead in the water.