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Old 04-16-2018, 07:03 AM
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Default leaking oil

so i have noticed a lot of oil leaking out of my prop so I did a visual inspection, it appears it is coming from the intake so I'm assuming it is a reed valve. The motor is running fine but leaking a lot of oil. Could a reed valve leak this much?? Going to pull the intake and reed valve assy, is it hard? couldn't find any videos on utube, my go to solution.
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Old 04-16-2018, 07:17 AM
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I suggest you ID your engine, so someone can help you.
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Old 04-16-2018, 07:22 AM
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so i have noticed a lot of oil leaking out of my prop so I did a visual inspection, it appears it is coming from the intake so I'm assuming it is a reed valve. The motor is running fine but leaking a lot of oil. Could a reed valve leak this much?? Going to pull the intake and reed valve assy, is it hard? couldn't find any videos on utube, my go to solution. I have a 07 E-Tec 175
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Old 04-16-2018, 07:44 AM
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I have a 07 E-Tec 175
Yeah, that is what e-tec and Evinrude hides ....
Same happen if you let run a e-tec in a tank for a hour and you will find a lot of oil in the water
It seems that e-tec is burning only a part of the oil injected to comply with environmental laws and the rest get dumped in the sea ...
I saw this several times in the test tank of the shipyard i worked and that was a reason why i stepped away from e-tec engines.
Make also a math, e-tec engines run at 2% mix (if using their expensive synt oil) and that must create smoke, but here is no smoke. So where is the oil going???

Chris
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Old 04-16-2018, 07:59 AM
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Originally Posted by ChrigelKarrer View Post
Yeah, that is what e-tec and Evinrude hides ....
Same happen if you let run a e-tec in a tank for a hour and you will find a lot of oil in the water
It seems that e-tec is burning only a part of the oil injected to comply with environmental laws and the rest get dumped in the sea ...
I saw this several times in the test tank of the shipyard i worked and that was a reason why i stepped away from e-tec engines.
Make also a math, e-tec engines run at 2% mix (if using their expensive synt oil) and that must create smoke, but here is no smoke. So where is the oil going???

Chris
Chris, what I'm seeing is an anomaly. This is not normal. I can't speak to what you are describing. is it a major job to replace the reed assy? any hidden secrets I need to knwo before hand?
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Old 04-16-2018, 08:21 AM
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Originally Posted by c_hook20 View Post
Chris, what I'm seeing is an anomaly. This is not normal. I can't speak to what you are describing. is it a major job to replace the reed assy? any hidden secrets I need to knwo before hand?
Reeds don't leak oil. Get you head away from thinking it is an issue with reeds.

The above poster is right, DI engines don't "burn" all of the oil like traditional 2 stokes do.

I would identify the leak source, if from the intake/reed area I would look that the oil metering pump is still accurate and go from there
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Old 04-16-2018, 11:04 AM
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so i have noticed a lot of oil leaking out of my prop so I did a visual inspection, it appears it is coming from the intake
If it'sa lot of oil then there is a problem with your oil injection pump or with the "mechanism" who dumps the oil in the exhaust.
You probably have to bring the boat to a ETEC specialist who knows very well this engine and from where this oil leaks.
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Old 04-21-2018, 10:25 AM
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So today I pulled the port side lower engine cowling off, connected a water hose, and ran the engine to observe for oil leaks. It didn't take long for my transmission rebuilder, Tony (Aamco Transmissions, Webster/Houston Tx) to identify the leak. On the port side, below the intake air box, and I believe on the block, is a pressed-in oil fitting which has a pin hole on one side, and a hair line crack on top. When we sprayed brake cleaner on it, we could see air blowing the brake cleaner out. So being spring time in Texas, all the outboard shops are booked solid, with one in particular having a 26 boat waiting list. Unfortunately this is not a job for me so I dropped it off and now it's a long and painful waiting game. The only brite side is I might be able to focus on work for a couple weeks vs. fishing.
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Old 04-21-2018, 06:16 PM
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If the pressed-in oil fitting you are talking of is a core plug then you can fix the hole with bicomponent epoxy glue like liquid metal.
If the fitting is simething different you probably still can fix it with liquid metal or similar epoxy glues and then have it fixed when the mechanic has time.
Main concern is that you have to degrease the whole part really well to have the epoy stick to it, but as there is low heat and pressure it should hold for some time.
I fixed several cars core plugs with this method and they still run fine.
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Old 04-21-2018, 08:01 PM
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Originally Posted by ChrigelKarrer View Post
If the pressed-in oil fitting you are talking of is a core plug then you can fix the hole with bicomponent epoxy glue like liquid metal.
If the fitting is simething different you probably still can fix it with liquid metal or similar epoxy glues and then have it fixed when the mechanic has time.
Main concern is that you have to degrease the whole part really well to have the epoy stick to it, but as there is low heat and pressure it should hold for some time.
I fixed several cars core plugs with this method and they still run fine.
Chris
thks Chris, I decided to let the experts do their deal. The fitting has a hose coming off of it, not sure if it is a injector or a oil return line.

Chris you had mentioned the E-Tecs dump oil, I haven't seen this. I was under the impression they burn cleaner then 4-strokes which I have never been fond of. Can't imagine letting E-Tecs on environmental sensitive waters like they do. I thought the air box and other catch methods recirculate the excess oil so it is not dumped, unless obviously there is a malfunction.

What kind of fishing do you do in Italy??

I've fished out of Los Suenos Marina in Costa Rica for about 17 years now. Is that where you fish out of or Quepos?
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Old 04-22-2018, 07:21 AM
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E-Tec engines are 2 stroke engines and use oil as the oil tank has to be filled every once, right?
E-Tec engines dont smoke, right?
So where is the oil going?

I was in the business to buy twin Evinrude FICHT (the original name of the e-tec system) back in 1999 and my buddy and shipyardowner where i worked went to do a special FICHT course to service my new engines.
When he came back he told me that Evinrude has a lot of problems with this engines and that the test pool had a lot of unburnd oil after some time of high speed running and that i should cancel the contract what i did.
I got twin Yamaha HDPI and they where using only a limited quantity of oil, but the burnt oil it was clearly to see and to smell
Nobody publicly talks about where xactly where the oil is going, but fact is that E-Tec engines don't smell of burnt oil like a 2 stroke engine running on syntheic 2% fuel/oil mix and they use oil as the oil tank level is lowering.

When i was fisihing in Sardinia we trolled for Tuna, White Marlin, Amberjack, dog tooth snapper, bottomfish for minor fishes and a lot of deep dropping for big eye red snappers and depth groupers.

The boats are outside of Los Sueños moored in the bay as the Marina don't allow dive operations inside the marina and the marina is so full that they started to kick slip owners out if they don't have a condo in Los Sueños.

Chris
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Old 04-24-2018, 06:08 PM
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So is replacing the pressed in oil fittings a job for an expert or is it something the average guy can do?
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Old 04-29-2018, 07:04 AM
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ok guys I've replaced the pressed in oil fitting myself, I think it was a return line. And after trip number two, the no start problem seems to be gone. That tells me the sand and mud I dig up while getting in shallow to wade fish, is wearing on the impeller, hence the fuel in the chamber is vaporizing. So the boat ran flawless, with the exception of at first start of the morning it is cold natured. It started bur died after a few seconds, did this twice, but did start every time, and after this initial start problem ran like a scolded dog all day. In addition to the initial cold start, I noticed an oil dump in my drive way after the boat sat for a couple hours at the end of the day. This oil is not the 2-stroke oil but burnt oil/gas. What could this be.
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Old 04-30-2018, 05:55 AM
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Lower unit input or prop shaft seal?
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Old 04-30-2018, 06:05 AM
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Will lower unit gear grease turn this color? plus it looks a little thin, but out of precaution I'll pull the prop.
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Old 04-30-2018, 06:58 AM
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As you have a 2 stroke: if it's not 2-stroke oil then it's lower unit oil, You can smell it, gear box oil stinks like hell.
Yes, when it's old then it becomes burn and black after 100 hours, that is the reason why "normal" lower units require max 100 hours LU gear oil change.
I tried this year full synthetic 80W90 Castrol Syntrax and in a few days i can tell the difference.
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Old 04-30-2018, 07:01 AM
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If it's gear grease it should be empty, as much as I seen last few trips. I'll check it today.
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Old 05-02-2018, 10:15 AM
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Thanks Chris you were right, it was lower unit gear grease. I didn't think it was, but it was time to inspect and change it, so when I drained it, water came out along with the grease. The seals was leaking so replaced them and the gear grease. All is working good now. May still have the initial cold start and die issue, will know within a day or two, when I run it.
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