DF250 Water in engine oil

[bob3fish]

My engine oil looks like chocolate milk. DF250 with about 300hrs and regular service. All I can figure is a blown head gasket. The motor still runs pretty good, idles and powers up. I have drained the oil/water, replaced with oil/diesel mix twice and drained it again. I'm awaiting an evaluation from my Suzuki dealer but he hasn't gotten to it yet but said he has never heard of this happening before. I fear the worst. Any ideas??

 

[250 Zuk]

Re: DF250 Water in engine oil

Did you ever get your motor fixed? If so what was the problem

 

[250 Zuk]

Re: DF250 Water in engine oil

Has anyone else had problem with water in the oil in a Suzuki or know someone that may of had the problem? And what was the cause? I have one that has been rebuilt twice since last year and still leaks water into the oil

 

[conkopec]

Re: DF250 Water in engine oil

I have had the same problem with a DF6 that I use and a Sea Eagle 12.6 inflatable. This is my first outboard engine and boat. The problem occurs only when the water is rough with waves washing/splashing into the boat and on me. Like when the wind picks up and I am at the far end of the lake and have to get back to the dock. No help from dealers, reps, or Suzuki. They haven't a clue. I even wrote to Japan and they did not have the courtesy to reply. Did some investigation and found that when I hose down the cowl( engine cover) I get water in the oil and the engine sputters. I get the water in oil when the waves are high and probably washing/splashing the cowl. There are air intakes on the bottom of the cowl and wateror air can leak into the cowl through the starting cord hole, gas fill hole, and intersection of the removable part of the cowl with the base. I removed the cowl and there was water "under the hood". Apparently this water can enter the engine block somehow. My guess is through the carb. I am not a mechanic nor familiar with the practical aspects of engine workings and don't intend to become one. If this helps great. I do not know what to do except get my money back. Fortunatley the engine is still under warranty.

I also found out that the engine exhausts into and under water for muffling. With the boat bouncing in the waves there could be an excess/over pressure from the waterhead/bouncing velocity up the exhaust shaft which blows water back into the engine. A backflow valve would prevent thiss but I can't determine if there is one with out dismantling the entire engine.

 

[poolman772]

Re: DF250 Water in engine oil

Has anyone else had problem with water in the oil in a Suzuki or know someone that may of had the problem? And what was the cause? I have one that has been rebuilt twice since last year and still leaks water into the oil

Know of two motors that had the intake screw come loose and get sucked into the piston.One of them locked up the motor and the other one eventually got hydrolock,since the screw blew through the head gasket. Both were 2005 motors.

 

[250 Zuk]

Re: DF250 Water in engine oil

They were unable to find how the water is getting in the oil Suzuki has agreed to give me a new bare block and 2 new bare heads.

 

[Ldavidgrover]

Re: DF250 Water in engine oil

I havent come across that problem yet on the 250's but since it's apart check the intake plates as we have had many of the factory screws come loose and blow the motor up

 

[poolman772]

Re: DF250 Water in engine oil

I havent come across that problem yet on the 250's but since it's apart check the intake plates as we have had many of the factory screws come loose and blow the motor up

This is exactly what happened to both of these 2005 df 250's that I'm speaking of.BTW,both where out of warranty.One was taken care of and the other was not.Two different owners one these motors.

 

[Ldavidgrover]

Re: DF250 Water in engine oil

OK if you read back to my last thread i hadnt had that problem yet. Ok well today I had one come in the shop with low oil pressure and slight milk in oil. I will be doing a tear down mon or tues this coming week and I'll let you know what I find

 

[poolman772]

Re: DF250 Water in engine oil

I'd be curious to hear what you find.So far,I've heard that there was a problem at Mikuni in 05,where the screws that were tapped on the backside of the intake didn't get punched hard enough and would,?ver time,vibrate out and get sucked into the cylinder.Some of them would blow through and some would not,thus the blown motors.I REALLY think Suzuki and Mikuni should own up to this and make it right.

 

[poolman772]

Re: DF250 Water in engine oil

OK if you read back to my last thread i hadnt had that problem yet. Ok well today I had one come in the shop with low oil pressure and slight milk in oil. I will be doing a tear down mon or tues this coming week and I'll let you know what I find

What did you find in that 250?

 

[Ldavidgrover]

Re: DF250 Water in engine oil

Ok Sorry it took me so long to respond. Well we torn down the entire block and we could not find where the water was coming from. There were no blown gaskets. The only thing we could come up with that there was a pin hole hole somewhere on the block that we couldnt see. The owner ended up buying a new motor since a short block was only a couple of thousand less. The intake plates were loose and same with the port motor. Motor has 1200 hr on it.

 

[poolman772]

Re: DF250 Water in engine oil

I had the same issue with my r/h rotation motor,"loose intake screws", but the other one was too late and suzuki told me that it was out of warranty.So now I think I'll look at Yamaha or etec.No more suzuki for me.The insides where completely corroded on both motors with under 1300 hours on them.And all I wanted from suzuki was a "hookup"on a pair of new motors.

 

[Ldavidgrover]

Re: DF250 Water in engine oil

Well Poolman772 If you had your valves serviced at 200 hrs like the manual states you would have caught the problem long before and it would have been covered by Suzuki

 

[poolman772]

Re: DF250 Water in engine oil

Actually,it was taken to the dealer at 200 hours.They did the scheduled service,?r so they say.I only say that because I felt that they were a little untrustworthy.And not much longer afterwards they went belly up.But,upon opening up these motors now,the corrosion is incredible,and that was alarming to me.So,with nothing from suzuki on a price break.I chose to spend my hard earned cash elsewhere.

 

[Clubbber]

Re: DF250 Water in engine oil

I had the same issue with my r/h rotation motor,"loose intake screws", but the other one was too late and suzuki told me that it was out of warranty.So now I think I'll look at Yamaha or etec.No more suzuki for me.The insides where completely corroded on both motors with under 1300 hours on them.And all I wanted from suzuki was a "hookup"on a pair of new motors.

I just brought my 2007 Proline 24 Super Sport in to the dealer for milky oil in my 2007 Suzuki DF250. I have an extended warranty on the motor through 2014. Dealer stated that the cylinders are corroded & definitely water in the oil. I brought it in on Saturday and they just started tearing it down on Monday 4/16. I take very good care of the motor after every use, so I thought. There are approximately 200 hours on the motor and it is on a trailer in a marina's lot near the water in Palm Harbor, FL. I'll keep this thread up to date on the details as I receive them.

 

[poolman772]

Re: DF250 Water in engine oil

At least you have an extended warranty.I hope they honor it.