Honda BF50 making oil

[BOAT]

There is no such thing as making oil. Your oil system is getting contaminated with somthing. Most likely fuel. 2003 model carbureted? A float needle leaking?

Hate to inform U that u are wrong "the term" Making Oil is used in the trade as describing a fluid leaking into the crankcase & therefore raising the oil level ! 'Thus using the term "Making Oil"

Also excess idling is well known in the trade to cause "makin oil" as unburned gas or deisel leaks down into the crankcase , same as excess idling a diesel eng in certain weather condintions can fill the crankcase with water "due to excess "moisture in the air created in the crankcase " forms into water as it cools down

J

It's true, even two strokes can be guilty of "makin oil" - I was running year old gasoline in my etec60 at idle for a long time since my wife hates the motor I don't run it much so after several trips like that when I got home with the boat in the driveway sitting for several hot days there was "oil" dripping out of the prop where the exhaust port is. It was a black sticky goo kind of 'oil'. The old gasoline was turned into bunker C as it was slowly cooked in the exhaust manifolds. I put in fresh gas and went for a real nice wide open throttle trip with a buddy out in the ocean for about 30 minutes - the next thing we knew we were out in the middle of nowhere so we had a nice sail. The motor did not leak a drop after that.

I will make sure I always use fresh gas and to make sure I do not ONLY IDLE the motor all the time (I will try to use the motor more often).

[grady]

There is no such thing as making oil. Your oil system is getting contaminated with somthing. Most likely fuel. 2003 model carbureted? A float needle leaking?

Hate to inform U that u are wrong "the term" Making Oil is used in the trade as describing a fluid leaking into the crankcase & therefore raising the oil level ! 'Thus using the term "Making Oil"

Also excess idling is well known in the trade to cause "makin oil" as unburned gas or deisel leaks down into the crankcase , same as excess idling a diesel eng in certain weather condintions can fill the crankcase with water "due to excess "moisture in the air created in the crankcase " forms into water as it cools down

J

It's true, even two strokes can be guilty of "makin oil" - I was running year old gasoline in my etec60 at idle for a long time since my wife hates the motor I don't run it much so after several trips like that when I got home with the boat in the driveway sitting for several hot days there was "oil" dripping out of the prop where the exhaust port is. It was a black sticky goo kind of 'oil'. The old gasoline was turned into bunker C as it was slowly cooked in the exhaust manifolds. I put in fresh gas and went for a real nice wide open throttle trip with a buddy out in the ocean for about 30 minutes - the next thing we knew we were out in the middle of nowhere so we had a nice sail. The motor did not leak a drop after that.

I will make sure I always use fresh gas and to make sure I do not ONLY IDLE the motor all the time (I will try to use the motor more often).

Really? The trade? Which one would that be? As a term yes a Mechanic may say that, but it is impossible to "make oil" If you have 4qts of oil in an engine and after you run it it reads 4.5qt there is still only 4 qts of oil in it. You have .5qt of contamination, Fuel, Water, somthing but not oil. My point to kasmith21 was you need to get it fixed asap. Although silverfox441 probably expressed the need to get it fixed asap a little better.

As far as a 2 stroke making oil, what you have it the fuel is leaking into the exhaust and then the fuel is evaporating leaving the oil that was mixed into the fuel prior. Guess what it is not being made it is what you already put in the fuel.

[NiceAft]

This discussion is like debating how many angels can you fit on the head of a pin. Once everyone comes up with an answer, so what

Grady,

You're taking things too literally.

You are absolutely correct about not being able to actually “make oil”, but it's only a term used.

Electricians talk about “juice”, but are those little electrons moving through wires actually juice? Boats are genderized as “she”, but do they have........, you get the picture. Well, you're not actually receiving a picture, but you understand.



Ray

[Bilgemaster]

"Making Oil", however illogical the term may seem, is a commonly used description for motors whose oil levels appear to rise owing to fuel or water ingress into the engine oil, diluting the oil. Outboards are particularly prone to it, my own 2001 Honda BF50A among them. There are several possible causes, as briefly described here.

As a Google search for "Honda outboard making oil" might reveal, perhaps the commonest cause is a sticky thermostat, which, remaining wide open, does not allow the engine to get up to its proper operating temperature. One useful diagnostic symptom of this will be that the pee hole water will remain fairly cool. At full operating temp I am led to understand that it should be about 100-120 degrees Fahrenheit. Anyhow, swapping out the thermostat is the first thing I'm gonna try, especially since I'm pretty sure from my numerous uncloggings of my gritty peehole that a previous owner used it in the salty or at least brackish stuff from time to time--a sure clogger of thermostats. I may also do the quart of white vinegar in the 40 gallon trashcan waterways rinse too, and then rely on the sweet water of the Potomac to gently ease out the scale.

[Tomfoolery]

As a Google search for "Honda outboard making oil" might reveal, perhaps the commonest cause is a sticky thermostat, which, remaining wide open, does not allow the engine to get up to its proper operating temperature. One useful diagnostic symptom of this will be that the pee hole water will remain fairly cool. At full operating temp I am led to understand that it should be about 100-120 degrees Fahrenheit.

Mine was stuck open last spring when prepping it, running on a hose and earmuffs. Pee water was actually cold, whereas it's normally warm to very warm, and gets so pretty quickly once started. But I didn't know about that being a possible cause of making oil.

Anyhow, swapping out the thermostat is the first thing I'm gonna try, especially since I'm pretty sure from my numerous uncloggings of my gritty peehole that a previous owner used it in the salty or at least brackish stuff from time to time--a sure clogger of thermostats. I may also do the quart of white vinegar in the 40 gallon trashcan waterways rinse too, and then rely on the sweet water of the Potomac to gently ease out the scale.

I got tired of fighting with the tiny fittings and hose, so I installed the 'upgrade' kit, which has a larger fitting. The new hose, by the way, steps down immediately to the original size - just the fitting and the flared-larger hose end is different.

It was better, and didn't clog as often at the engine fitting, but it still did once in a while, and all the time at the outlet fitting. So I bought a short length of fuel line that fit the upsized engine fitting, and just ran it out the hole, without the outlet fitting. Hasn't clogged since. Moves a lot more water through it, though, so I suppose it could take a little longer to warm up, but being a small aluminium engine, under any kind of load it's going to warm fast, so I'm not worried about it.

Some of the clogging is just lake slime that dries over the winter and breaks loose once it's running again (no salt water). But it's still aggravating.

[C Buchs]

[quote="Bilgemaster" perhaps the commonest cause is a sticky thermostat[/quote]

I have a 2000 Honda BF50. I just replaced the water pump impeller (I got the complete kit PN 06193-ZV5-020, $52.86), the thermostat (PN 19300-ZV5-043, $19.25) and the thermostat gasket (PN 19351-ZV5-000, $1.91). Total cost from Boats.net was $83.97, including shipping. I could have gotten away with just replacing the impeller & it's gaskets and saved $25, but this was my first time replacing the impeller and I didn't know what I was going to find. The thermostat was a pretty easy job once I figured out that it was located a tiny bit aft and straight above the oil filter. Just take off the cowling, remove the cover on top that goes over the fly wheel (4 bolts), remove the thermostat cover (2 bolts), clean things up and put it back together. My boat was used in salt water before I got it and although the water from my pee hole was getting warm, the thermostat was covered in salt and corroded.

I also upgraded the pee hole fitting to the larger diameter ones. This was suggested in another thread here. Apparently the pre-2003 or 2004 motors had a smaller brass fitting. I can find that thread if this interest anyone.

Jeff

[BOAT]

the sweet water of the Potomac

???

[Seapup]

This discussion is like debating how many angels can you fit on the head of a pin. Once everyone comes up with an answer, so what

Ill throw a guess on that note.

I am betting the oil is fine and was just was checked during a full moon when there was an unusually high gravitational pull


The water & oil due to corrosion is real and costly one for 4 strokes, hence the half million plus results when you google it. Anyone that has that problem has my sympathies. It was the demise of the 2005 DF90 (R.I.P.) on my . It was quicker and cheaper to just buy a brand new 20 than to fix it.

[Highlander]

Really? The trade? Which one would that be? As a term yes a Mechanic may say that, but it is impossible to "make oil" If you have 4qts of oil in an engine and after you run it it reads 4.5qt there is still only 4 qts of oil in it. You have .5qt of contamination, Fuel, Water, somthing but not oil. My point to kasmith21 was you need to get it fixed asap. Although silverfox441 probably expressed the need to get it fixed asap a little better.


The Trade would be "Mechanic " Transport & construction Equip. started my 5yr apprenticeship 52yrs ago & in this trade u r always an apprentice becuase u r always learning & up-grading ur skills too learn how to use & repair new technology & equip. & retired now !

& in ur quote above u just repeated exactly what I said !! "as a term" ?
Anyway hate to see u get this up-set that easily over a word "term" As Ray said !

J

[BOAT]

'Makin' oil' is not really a term those Houston oil necks toss about so I can I can give him some some slack on that one but out here it's a phrase so common that most folks saying it are not even talking bout boat motors - they are talking about POT! Making oil from pot is a big deal over here - they make it with hash, they make it with butane they make it with honey they make it with canna they make it from weeds, stems, and trim but mostly they make it from CANNABIS. Boating Magazine did an article on boat motors "making oil" but I think that's a different kind of oil so maybe that's what he's talking about:

http://www.boatingmag.com/how-to/making-oil

I'm not sure what they use the cannabis oil for, but I don't think it goes in the outboard. (?)

If your boat motor is making oil maybe you can smoke it?

[Bilgemaster]

the sweet water of the Potomac

???

"Sweet water" is just another term for "fresh water". It is said to come from the Spanish term "agua dulce", which I believe may literally mean "making oil". More on the matter can be found here.

[BOAT]

Okay, we can file sweet water with makin' oil but I was unaware what kind of water is in the Potomac. Since the word POtomac starts with POT I can see why they are making oil out of that too.

So I guess I will add Potomic water to the list of things you can 'make oil' with for you folks that are into that kind of thing. If someone gets around to putting motor boat oil in their pipe and smoke it please let the rest of us know if it's any good. (Still seems like a strange way to 'make oil' to me). I know you guys in the Gulf have lots of extra oil in your water courtesy of those BP guys, has anyone tried smoking that yet?

Oh, and by the way John, Boating Magazine does not call "Makin Oil" a 'Trade Term' - they call it "mechanic slang" - so it's a "slang term used by 'The Trade' " if we are going to be 100% accurate here - (who is ever 100% anything on THIS site?!?) Anyways - unlike what my friends here on the skateboards tell me this kind of oil is a 'bad' thing - here is the quote:

Overfilling your engine with oil is as bad as running low on lubricant. But what if you filled it properly yet over time your dipstick begins to show you have more oil than you started with? Your engine could be “making oil,” mechanic slang for fluid intrusion of the crankcase.

MAKING OIL
Too much oil can be a bad thing.
By Kevin Falvey September 19, 2014
Boating Magazine
http://www.boatingmag.com/how-to/making-oil

I guess we all need to be aware of our "oil making" habits no matter what kind it is because it appears either can get you into trouble - one with the mechanic and the other with the ATF.

[Bilgemaster]

I guess we all need to be aware of our "oil making" habits no matter what kind it is because it appears either can get you into trouble - one with the mechanic and the other with the ATF.

I presume you mean "making ATF", like the Automatic Transmission Fluid in the trim hydraulics?

[BOAT]

I guess we all need to be aware of our "oil making" habits no matter what kind it is because it appears either can get you into trouble - one with the mechanic and the other with the ATF.

I presume you mean "making ATF", like the Automatic Transmission Fluid in the trim hydraulics?

Bureau of Alcohol, Tobacco, Firearms and Explosives: ATF

[grady]

I guess we all need to be aware of our "oil making" habits no matter what kind it is because it appears either can get you into trouble - one with the mechanic and the other with the ATF.

I presume you mean "making ATF", like the Automatic Transmission Fluid in the trim hydraulics?

Bureau of Alcohol, Tobacco, Firearms and Explosives: ATF

Think they should change that to BATFE?