1. Use the full 4 digit year for everything you are asking your question about. Example: 1962, 1988, 2000, 2011
2. Include the correct name of your Whaler model. Example: Montauk 17, Montauk 170, Outrage 26, Outrage 260
3. Include the length when necessary. Example: 16, 17, 18, 20, 22
4. Do not post your email address anywhere on this site as it is already in your user profile.

milky engine oil
chris galschjodt	#1  Posted on 05/02/13 - 9:04 AM
Member Personal Page Posts: 34 Comments: 1 Joined: 02/02/06	Question. At the end of last summer the engine oil in my 2002 Johnson four sroke was starting to turn a milkshake brown. Fearing I had a head gasket leak I took it my ace mechanic and he said there was nothing wrong. He told me this was a result of not running the motor at speed which gets the motor hot enough to burn off condensation in the oil.I do alot of fishing and most of the time I'm putting around barely above idle. Does this sound familiar to anyone? Chris
Petrus	#2  Posted on 05/02/13 - 10:43 AM
Member Personal Page Posts: 179 Comments: 0 Joined: 10/08/12	I've seen cars with this symptom when driven short distances which doesn't let the motor run warm long enough. More commen in the winter though. 1997 Montauk 17, Suzuki DF90A
contender250	#3  Posted on 05/02/13 - 11:24 AM
Member Posts: 363 Comments: 0 Joined: 10/09/11	Is the oil turning white or is it just filled with fine bubbles that are not mixing? Even if you are running the engine for a lot of time at a low speed the oil should heat up enough to get rid of the milk shake appearance. However if you have run the engine for a while and still have the milk shake in the oil you have a leak. I would drain all the oil, let it drain for a good 24 hours, put new oil and filter, if the shake comes back you have a leak...Good luck
Derwd24	#4  Posted on 05/02/13 - 11:31 AM
Member Posts: 1607 Comments: 9 Joined: 05/09/07	Give this a read about 4 strokes "making oil": http://www.idofishing.com/forum/showf...making-oil Dave - 1983 Outrage 22
CES	#5  Posted on 05/02/13 - 11:35 AM
Member Personal Page Photo Albums Project Albums Posts: 2681 Comments: 7 Joined: 04/27/07	It's probably nothing more than condensation that's buil up in your block and mixed in with the oil. A good day of running it hard or an oil change will fix ya right up. The heat in the motor will evaporate the moisture. This is why it's always a good idea to change the oil before you put her up for the winter....it'll help prevent corrosion from forming inside the motor too. Cliff 1966 13' Sport with a 1993 40hp Yamaha 2 Smoker
chris galschjodt	#6  Posted on 05/02/13 - 11:42 AM
Member Personal Page Posts: 34 Comments: 1 Joined: 02/02/06	Thank you, Derwd. My mechanic told me pretty much the same thing. He also said this has become so common that they are designing the new motors to run a little hotter to prevent this from happening. I guess I'm going to have take her out and open 'er up more often. But I'll deal. Chris
Derwd24	#7  Posted on 05/02/13 - 11:48 AM
Member Posts: 1607 Comments: 9 Joined: 05/09/07	As Contender suggests, and oil change and check shortly thereafter would be a very good idea. Small amounts of condensation will not show up as milky oil, so if you still have it happening, further investigation is needed. Dave - 1983 Outrage 22
CES	#8  Posted on 05/02/13 - 12:55 PM
Member Personal Page Photo Albums Project Albums Posts: 2681 Comments: 7 Joined: 04/27/07	Derwd24 wrote: As Contender suggests, and oil change and check shortly thereafter would be a very good idea. Small amounts of condensation will not show up as milky oil, so if you still have it happening, further investigation is needed. Sorry Dave,,,I guess I should have read yours and Contenders posts a little more thoroughly... Cliff 1966 13' Sport with a 1993 40hp Yamaha 2 Smoker
Derwd24	#9  Posted on 05/02/13 - 1:01 PM
Member Posts: 1607 Comments: 9 Joined: 05/09/07	No problem Cliff, you may be right in that it just may need a hard run occasionally. But can't hurt to check for something more pressing just to be sure. Dave - 1983 Outrage 22
CES	#10  Posted on 05/02/13 - 1:10 PM
Member Personal Page Photo Albums Project Albums Posts: 2681 Comments: 7 Joined: 04/27/07	Derwd24 wrote: No problem Cliff, you may be right in that it just may need a hard run occasionally. But can't hurt to check for something more pressing just to be sure. That's what I was told to do with my BIG motor in my other boat...after I showed concern for a milky oil substance under the valve covers....they said I should do more cruising than idling.... so with that advice, I hammer it a little more often...lol. Cliff 1966 13' Sport with a 1993 40hp Yamaha 2 Smoker
BillDemers	#11  Posted on 05/02/13 - 5:29 PM
Member Posts: 146 Comments: 0 Joined: 08/12/12	A pressure test of the cooling system would tell that the water is or isn't coming from the cooling system. BillD 1999 Dauntless 18' - 135 Mercury Optimax
Petrus	#12  Posted on 05/03/13 - 11:36 AM
Member Personal Page Posts: 179 Comments: 0 Joined: 10/08/12	This is how it can look like under the oil cap: http://m.flickr.com/#/photos/zutterbu...353753478/ Ask your mechanic to check the crankcase ventilation also. Might need to be cleaned. Edited by Petrus on 05/03/13 - 11:47 AM 1997 Montauk 17, Suzuki DF90A
chris galschjodt	#13  Posted on 05/06/13 - 11:54 AM
Member Personal Page Posts: 34 Comments: 1 Joined: 02/02/06	Hi Petrus Where would this crankcase vent be on the motor?Thanks in advance, Chris
Petrus	#14  Posted on 05/06/13 - 12:46 PM
Member Personal Page Posts: 179 Comments: 0 Joined: 10/08/12	I don't know exactly how it looks on your motor. But here is a good explanation how it works. http://www.sr20-forum.com/information...ition.html I think you should be able to check if it works correct by remove the oil cap and cover the hole with plastic film. The film should not bubble up during idle, as ther should be vacuum. My guess is that water can't vent out if crank case vent is not working. Note, I'm no expert at this, but I think condensed water should vent out this way. Best is to ask your mechanic if this could cause your problem. Edited by Petrus on 05/06/13 - 12:52 PM 1997 Montauk 17, Suzuki DF90A
duf	#15  Posted on 05/06/13 - 1:33 PM
Member Personal Page Photo Albums Posts: 840 Comments: 9 Joined: 04/22/07	I just got a 4 stoke, so no opinion on an outboard, but had the same thing on my garaged CJ7, which had a 258 in it. I routinely changed the oil, and it would always turn milky in short order, Drove me nuts, and i had the motor checked for leaks at several different places because i didn't believe them. Bottom line, it was condinsation. Duf