Honda 90 water / Gas in oil?

[Ramlovingvet]

I have got what looks like imulsified water in the oil on the Honda but it smells strongly of Gasoline? Anyone else have this problem? My Firsr Guess was Head Gaskit but the gas smell is throwing me?<br />Thanks

 

[Travis B]

Re: Honda 90 water / Gas in oil?

I have been dealing with water in my oil, which will turn your oil a milky color (making milkshakes as one mechanic put it). But in my pursuit of finding the root of my problem, I have spoken with a few different Honda Techs. in my area. The number one question they ask, am I sure it is water and not gas. It turns out that getting gas in the oil is a common problem and Honda has sent out service bulletins to the repair shops about this. For the life of me I cannot recall off the top of my head the cause/repair of this. I would suggest calling or going by a Honda shop in your area and talk with the Honda Tech. there. Every Tech. I have spoken with has been very helpful.

 

[JB]

Re: Honda 90 water / Gas in oil?

Gas in the oil has been an occasional problem on EFI 4 strokes, though this is the first time a carbed Honda has come up.<br /><br />Yamaha/Merc diagnosed it as the engine running too rich after warm up and/or unseated rings on new engines. Their fix is new thermostats and hard running to seat the rings better.<br /><br />The EFI Suzukis can get gas in the oil if the diaphram in the vapor seperator leaks.<br /><br />Water? Need to investigate all interfaces between cooling and lubricating systems.<br /><br />Good luck.

 

[zzzzz]

Re: Honda 90 water / Gas in oil?

we have found the fuel pumps' rear diaphragm to be the culprit when gas is present in oil- it is camshaft operated and when it gets perforated it floods (somehow) into the crankcase...at least that's the explanation I got from one of our techs