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MFF US Northeast => Maine => Topic started by: joefishmore on Jul 22, 2018, 06:26 AM

Title: Milky outboard engine oil
Post by: joefishmore on Jul 22, 2018, 06:26 AM
When  the oil on the dipstick is milky is that a major bad sign ?
Title: Re: Milky outboard engine oil
Post by: SHaRPS on Jul 22, 2018, 08:13 AM
i had that in a boat a while back and it all had to be drained.
Title: Re: Milky outboard engine oil
Post by: Mac Attack on Jul 22, 2018, 08:13 AM
Yup!
Blown head gasket or cracked head allowing cooling water in there to foam your oil.
Get it checked.
Title: Re: Milky outboard engine oil
Post by: deerhunter on Jul 22, 2018, 08:18 AM
macs right. milky oil means water
Title: Re: Milky outboard engine oil
Post by: stguy on Jul 22, 2018, 08:22 AM
It's  not a good sign, don't  run it.


It could be as simple as condinsation, could be a bad head gasket, could be a crack somwhere.

It doesn't  take much water to make things look really bad.

Take it to a mechanic, may have to Bust Out Another Thousand or more.
Title: Re: Milky outboard engine oil
Post by: joefishmore on Jul 22, 2018, 08:53 AM
Bust out a 1000 more refers to $$$$$ I guess, Moter is over 20 years old.
How many of you would vote for junking it ?
Title: Re: Milky outboard engine oil
Post by: zwiggles on Jul 22, 2018, 09:04 AM
My cousin recently had a similar situation. A boat and motor they had bought last year with their house started to have some issues running. They also discovered milky oil. They brought it down to a mechanic, who told them since it was about 25 years old that they could pay him to go in, and try to figure out the issue, but he couldn’t guarantee the work or finding the issue. He said in his experience unless you completely tear it down and rebuild it (which is crazy money for an old motor) the first issue he finds/fixes may not be the only one.

They just bought a new motor rather then pay a tech to try and figure it out.
Title: Re: Milky outboard engine oil
Post by: Swampking89 on Jul 22, 2018, 09:06 AM
All depends on how many HP. A small one replace,a big one repair.
Title: Re: Milky outboard engine oil
Post by: Mac Attack on Jul 22, 2018, 09:13 AM
All depends on how many HP. A small one replace,a big one repair.

I (almost) agree.

A big one, have it looked at.
Title: Re: Milky outboard engine oil
Post by: stguy on Jul 22, 2018, 09:23 AM
Bust out a 1000 more refers to $$$$$ I guess, Moter is over 20 years old.
How many of you would vote for junking it ?

Find out where the water is coming from first.

Did the oil level on the dipstick change?

How many hours on it?

Has it been overheated/water pump impeller failed?

If it has been maintained well it should go a couple thousand hours or more before it turns to junk.

Check the compression in all the cylinders, if the compression is good, drain the oil and flush the crank case with some kerosene or diesel fuel, change the oil filter and put fresh oil in it and run it for a few minutes and see what happens.

If one cylinder is down on compression, chances are it's a blown head gasket and shouldn't be a ton of money to fix.

With the cost of new outboards these days, it would be worth finding out where the water is coming from.

Title: Re: Milky outboard engine oil
Post by: joefishmore on Jul 22, 2018, 09:31 AM
Its a 130 Honda, has had a few other issues, and I guess he is going to try to find somebody to look at it as close to Yarmouth as he can.
Title: Re: Milky outboard engine oil
Post by: lobsterman on Jul 23, 2018, 06:45 AM
id get a newer model with EFI that way your not screwing with carb cleaning im sure its and easy fix head gaskets aren't to bad but think about EFI
Title: Re: Milky outboard engine oil
Post by: stguy on Jul 23, 2018, 10:35 AM
Just talked to a friend of mine, if you end up looking for a new motor, he has a 2004 honda 130 with 900ish hours on it for sale,  comes with a 1983 23' Grady white attached to it, sitting on a nice trailer, all for 8000 bucks.
Title: Re: Milky outboard engine oil
Post by: joefishmore on Jul 23, 2018, 06:48 PM
Thanks
Title: Re: Milky outboard engine oil
Post by: fishinjohn on Jul 24, 2018, 03:46 AM
Definitely get it looked at before deciding anything!!!! New motors are NOT CHEAP BY ANY MEANS! 
Title: Re: Milky outboard engine oil
Post by: lowaccord66 on Jul 26, 2018, 05:45 AM
Definitely get it looked at before deciding anything!!!! New motors are NOT CHEAP BY ANY MEANS!

Thinking of replacing my 140 looper on a 19'6 alumacraft...cheaper to buy another boat.  >10k for a decent 115 four stroke.
Title: Re: Milky outboard engine oil
Post by: fishinjohn on Jul 26, 2018, 06:50 AM
Thinking of replacing my 140 looper on a 19'6 alumacraft...cheaper to buy another boat.  >10k for a decent 115 four stroke.
Yup.. buying a motor isn't always the best way to go. I had to laugh the other night.. I was looking at used boats on walleye central and I saw a ranger for sale. They wanted something crazy like 30k for it... WITH A BLOWN MOTOR!!!!!!  And I think it was a 06(if I remember right)
Title: Re: Milky outboard engine oil
Post by: MGK on Jul 27, 2018, 01:42 AM
Sounds like a blown head gasket. Maybe a cracked head but my bet is the gasket. Do a compression test to verify.
Title: Re: Milky outboard engine oil
Post by: joefishmore on Aug 03, 2018, 07:44 AM
Head was removed and revealed motor quite corroded prob due to salt water, unfixable.
Title: Re: Milky outboard engine oil
Post by: Mac Attack on Aug 03, 2018, 07:47 AM
Head was removed and revealed motor quite corroded prob due to salt water, unfixable.


Bummer.
But now you know.
Thanks for the update.
Title: Re: Milky outboard engine oil
Post by: Tom Hannock on Aug 03, 2018, 09:31 AM
I've had it happen in my 75 HP Yamaha 4 stroke the first couple years I had it.  I had this issue when fishing multiple times one early season in March when water temps were in the 30's.  My dealer said it was likely due to the cold water wasn't allowing the motor to warm up enough and they had known of it being an issue with outboards run in Greenland in extremely cold water.  I haven't had the problem ever since but it certainly had me concerned.  Your issue is probably something totally different but just thought I'd share my experience. 
Title: Re: Milky outboard engine oil
Post by: MG39 on Aug 05, 2018, 06:47 AM
Good preventive maintenance is the purchase of "salt terminator". It won't prevent a blown gasket or cracked head under certain conditions but will
surely prevent corrosion and build up of salt on your internal parts, especially your thermostat. Buy the kit the first time around, it includes the attachment to go on the ears for flushing. My 60 four stroke Yamaha is 13 yrs old and looks and runs like new.