SoCal Jet Boats

Tech Talk => Engine Mechanical / Electrical => Topic started by: 76spectra18 on August 21, 2018, 05:13:12 PM

Title: Milky oil in heads but not in oil pan
Post by: 76spectra18 on August 21, 2018, 05:13:12 PM: Just started the boat the other day, then took off the valve covers to check things out. Noticed small amount of milky oil in the heads but none in the oil when i pulled the dipstick. Why would there be oil in the heads but not in the oil pan? Its a stock big block chevy and im just running logs and snails.Thanks for any help.
Title: Re: Milky oil in heads but not in oil pan
Post by: bobjthomson on August 21, 2018, 05:54:12 PM: Oh boy here we go again .......... condensation, need to get the motor up to temp bro , it’s all good

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Title: Re: Milky oil in heads but not in oil pan
Post by: 76spectra18 on August 21, 2018, 06:04:24 PM: Really thats all!!!! I was thinking the worst. I need to get my temp gauge working. I dont think its reading right. It never seems to get over about 110 120
Title: Re: Milky oil in heads but not in oil pan
Post by: bobjthomson on August 21, 2018, 06:30:22 PM: Lol , pls don’t run it in the driveway. Get it on the water an drop that peddle

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Title: Re: Milky oil in heads but not in oil pan
Post by: bobjthomson on August 21, 2018, 06:31:25 PM: 110 - 120 is too cold brother , get that puppy warm , 160-170 ish

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Title: Re: Milky oil in heads but not in oil pan
Post by: mash on it on August 22, 2018, 03:36:36 PM: Quote from: bobjthomson on August 21, 2018, 06:31:25 PM
110 - 120 is too cold brother , get that puppy warm , 160-170 ish

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140° with logs and snails is plenty while underway. 150°-155° in the no wake zone.

170°+ is too hot for a jet boat motor.

Dan'l
Title: Re: Milky oil in heads but not in oil pan
Post by: bobjthomson on August 22, 2018, 06:14:21 PM: Oops that’s right I run a v drive lol and run brad penn straight 50w

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Title: Re: Milky oil in heads but not in oil pan
Post by: 76spectra18 on August 22, 2018, 07:17:31 PM: Ok cool. Thanks for the help. What about a thermostat? Should i use one? Right now i just have a valve from the pump to control water flow.
Title: Re: Milky oil in heads but not in oil pan
Post by: mash on it on August 22, 2018, 09:50:56 PM: Quote from: 76spectra18 on August 22, 2018, 07:17:31 PM
Ok cool. Thanks for the help. What about a thermostat? Should i use one? Right now i just have a valve from the pump to control water flow.

If it is not set up for a thermostat, like a mercruiser, then no.

Just use the valve at the pump.
Once it is set, you won't have mess with it.

Dan'l
Title: Re: Milky oil in heads but not in oil pan
Post by: rhay916 on August 23, 2018, 11:15:02 AM: Can condensation turn the oil in the pan milky?

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Title: Re: Milky oil in heads but not in oil pan
Post by: rhay916 on August 23, 2018, 11:17:39 AM: Took mine out for the first time since a full restore and noticed mist coming from the breathers so I shut it done and found a pan full of milky oil.

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