SoCal Jet Boats

Tech Talk => Engine Mechanical / Electrical => Topic started by: glencoe460 on January 28, 2016, 05:58:42 PM

Title: Milky oil in my dipstick help please
Post by: glencoe460 on January 28, 2016, 05:58:42 PM

Did a couple passes today and noticed some milky oil near my dipstick. Pulled it out and sure enough milky dipstick.  Pulled the boat out and drained oil no water in oil. Never lost power while running is this something to worry about? It was the first run in like 3 months. Some advice please!!

Title: Re: Milky oil in my dipstick help please
Post by: glencoe460 on January 28, 2016, 06:02:21 PM

I forgot I just replaced my water t valve and had manual valve all the way open could that have caused the problem?

Title: Re: Milky oil in my dipstick help please
Post by: Chad krieger on January 28, 2016, 06:02:31 PM

Maybe oil froth maybe too much oil


Sent from my iPhone using SoCalJetBoats mobile app

Title: Re: Milky oil in my dipstick help please
Post by: glencoe460 on January 28, 2016, 06:05:53 PM

So basically old oil?

Title: Re: Milky oil in my dipstick help please
Post by: glencoe460 on January 28, 2016, 06:06:23 PM

I did the last oil change after the last run of the season

Title: Re: Milky oil in my dipstick help please
Post by: placecraft jess on January 28, 2016, 08:09:13 PM

It would help to know what exhaust you are running


Sent from my iPhone using SoCal Jet Boats

Title: Re: Milky oil in my dipstick help please
Post by: glencoe460 on January 29, 2016, 07:18:16 AM

I'm running water injected bassett headers

Title: Re: Milky oil in my dipstick help please
Post by: glencoe460 on January 29, 2016, 07:22:42 AM

This is a pic of my setup

Title: Re: Milky oil in my dipstick help please
Post by: 00 CP on January 29, 2016, 07:46:06 AM

The lake water is pretty cold right now, were you able to get a decent temp while running? Since there wasn't any water in the oil when you drained it, what you saw on the dip stick may have been from condensation. This will usually go away if you can get the oil hot enough to evaporate the water.

Title: Re: Milky oil in my dipstick help please
Post by: mash on it on January 29, 2016, 08:06:41 AM

Quote from: glencoe460 on January 28, 2016, 06:02:21 PM

I forgot I just replaced my water t valve and had manual valve all the way open could that have caused the problem?

The header water is likely what caused this, if the valve was wide open. Header water should be OFF at 2500 rpm or less, and it only takes a minimal amount of water to cool them while under way.

Dan'l

Title: Re: Milky oil in my dipstick help please
Post by: glencoe460 on January 29, 2016, 08:09:36 AM

I maybe ran it for bout 30 mins before I noticed milky oil by my dipstick I quickly took it out water came home drained it and clean oil no water . Took valve covers of no sign of water either. I probably just panicked too much.

Title: Re: Milky oil in my dipstick help please
Post by: glencoe460 on January 29, 2016, 08:11:23 AM

I did just recently installed a new t fitting my old one went out and I did have the valve all the way open. That's probably my issue. Could I have damaged my engine? It still ran hard before I noticed that milky dipstick

Title: Re: Milky oil in my dipstick help please
Post by: glencoe460 on January 29, 2016, 08:14:27 AM

Should the valve be off if I'm running spring ball t valve from bassett I understood it regulates the water

Title: Re: Milky oil in my dipstick help please
Post by: 00 CP on January 29, 2016, 08:33:32 AM

My BBF is set up with the gate valve off the jet at 1 to 1.5 turns open (depends on the time of year/water temp). The valve to the headers is set by taking the boat out with the valve closed, get it up on plane at 2500 - 3000 rpm, have someone slowly open the valve until you just get a mist coming out of the headers. There shouldn't be water dripping out the back of the headers, and if the T valve is working correctly, no water to the headers at idle.

Title: Re: Milky oil in my dipstick help please
Post by: placecraft jess on January 29, 2016, 08:45:18 AM

I don't think you have t worry about any damage I put a ball valve on my basset T to adjust the water you just want no water until 2000 rpm are so


Sent from my iPhone using SoCal Jet Boats

Title: Re: Milky oil in my dipstick help please
Post by: GT Jets on January 29, 2016, 09:09:54 AM

Do you know the cam specs?

1,500 or higher is where the header water should come in.

You likely had cold oil and it never got hot enough to boil out the moisture so what you are seeing is condensation. Sometimes it looks like 50 people sneezed in the valve covers.

Your engine temp plays a small role in oil temp.

I would adjust the water valve to gain some temp at idle,  I really like about 150°F once it stabilizes.

All set ups are different.

The tee valve really should be at the bottom of the system and horizontal. The reasoning is pretty simple, it will stay saturated with water (reducing the potential for rust) and won't drain back into the headers when the engine is off.

Also make sure the weep holes are clear in the primary tubes. This gets overlooked sometimes.

Try to get the oil to run between 180°F and 240°F. Should be OK.

Title: Re: Milky oil in my dipstick help please
Post by: glencoe460 on January 29, 2016, 09:18:27 AM

Thanks everybody... this is my second season so still new to this but it sure gave me a scare. Drained all oil a couple times just in case. Oil looks good starting it with dry headers so I believe it was my water valve too much open. Much appreciated everyone!!!

Title: Re: Milky oil in my dipstick help please
Post by: TEAMSDSU on February 21, 2016, 10:44:51 AM

Possible condensation or froth in the oil??? Did you run the motor for a bit and see if it did it again?

Shawn

Title: Re: Milky oil in my dipstick help please
Post by: Bunger on February 21, 2016, 11:10:42 AM

If the oil is clean don't worry about it. It's normal to get some froth in the valve covers and dipstick tube. When the dipstick has milky oil that's when you have a problem


Sent from my iPhone using SoCal Jet Boats

Title: Re: Milky oil in my dipstick help please
Post by: TahitiMoeDoe on June 29, 2018, 09:54:43 PM

Is it Necessary to be running 2 valves open or one cracked and one closed? Worried about getting milky oil. Just changed t valve and going to run it close next time out... here is setup 460bbf


Sent from my iPhone using SoCal Jet Boats mobile app (http://r.tapatalk.com/byo?rid=201)

Title: Re: Milky oil in my dipstick help please
Post by: GT Jets on June 29, 2018, 11:34:34 PM

Quote from: TahitiMoeDoe on June 29, 2018, 09:54:43 PM

Is it Necessary to be running 2 valves open or one cracked and one closed? Worried about getting milky oil. Just changed t valve and going to run it close next time out... here is setup 460bbf


Sent from my iPhone using SoCal Jet Boats mobile app (http://r.tapatalk.com/byo?rid=201)

Take those off and throw them away IMMEDIATELY.... Is there a tee on the block water inlets? Hard to tell from those shots...


Regulate the tee valve timing with a gate valve on the jet pump.

GT

Title: Re: Milky oil in my dipstick help please
Post by: bobjthomson on June 30, 2018, 08:03:48 AM

GT is right , motor is to cold , need to get that puppy up to temp and evaporate that condensate . 


Sent from my iPhone using SoCal Jet Boats

Title: Re: Milky oil in my dipstick help please
Post by: TahitiMoeDoe on June 30, 2018, 09:00:25 AM

Thank you for the responses.. I believe it’s tee’d off at block I will check when I get back home later how it’s plumbed and take pics. Would it be easier to just install a pressure relief on jet and leave those valves open? Thanks again guys!!


Sent from my iPhone using SoCal Jet Boats

Title: Re: Milky oil in my dipstick help please
Post by: GT Jets on June 30, 2018, 01:11:46 PM

Quote from: TahitiMoeDoe on June 30, 2018, 09:00:25 AM

Thank you for the responses.. I believe it’s tee’d off at block I will check when I get back home later how it’s plumbed and take pics. Would it be easier to just install a pressure relief on jet and leave those valves open? Thanks again guys!!


Sent from my iPhone using SoCal Jet Boats

Those pressure relif valves are one of the dumbest things I have ever seen... Install a gate valve on the pump line, I use the Red and White 3/4" threaded valve and they typically end up about 1/2 open.

With the thermostat set up you have, you can literally just turn it closed until it warms up to above the thermostat value and open it back up one half turn... Leave it alone... Run a tie wrap through the handle so it doesn't get disturbed.

One thermostat line goes through the transom and the other to a tee control valve for the headers.

GT

Title: Re: Milky oil in my dipstick help please
Post by: TahitiMoeDoe on July 01, 2018, 08:21:17 AM

Thanks again i will be installing gate valve today... took a look and from jet it tees off 1 line each going to tee to block then tees off one each to block to ball valves one line each to top of tstat then bottom lines to dump....I have a separate ball valve off of intake to basset tee then to headers. Excited to test it out after gate valve is installed and hopefully have a worried free weekend at the lake.

Title: Re: Milky oil in my dipstick help please
Post by: GT Jets on July 01, 2018, 09:02:37 PM

Quote from: TahitiMoeDoe on July 01, 2018, 08:21:17 AM

Thanks again i will be installing gate valve today... took a look and from jet it tees off 1 line each going to tee to block then tees off one each to block to ball valves one line each to top of tstat then bottom lines to dump....I have a separate ball valve off of intake to basset tee then to headers. Excited to test it out after gate valve is installed and hopefully have a worried free weekend at the lake.

This sounds correct.... Don't forget to update on how well she ran....


GT

Title: Re: Milky oil in my dipstick help please
Post by: TahitiMoeDoe on July 02, 2018, 11:10:41 AM

Quote from: GT Jets on July 01, 2018, 09:02:37 PM

This sounds correct.... Don't forget to update on how well she ran....


GT

Will do!


Sent from my iPhone using SoCal Jet Boats mobile app (http://r.tapatalk.com/byo?rid=201)