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| Oil looks off http://www.mudmotortalk.com/mmt_v2/viewtopic.php?f=3&t=73284 |
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| Author: | JBsuperG [ Sun Dec 02, 2018 9:17 am ] |
| Post subject: | Oil looks off |
20181202_100743.jpg This oil came out of a 60 horse Bigfoot Mercury 4 stroke motor. This is what it looked like after settling overnight. I was wondering why it might look like this. I put some in a glass jar to settle overnight also. I did not see any water separate after sitting overnight. The motor is only 3 years old Any thoughts? |
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| Author: | Gigafowl [ Sun Dec 02, 2018 10:20 am ] |
| Post subject: | Re: Oil looks off |
H2O - gasket time.... Water emulsified in oil... |
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| Author: | JBsuperG [ Sun Dec 02, 2018 5:45 pm ] |
| Post subject: | Re: Oil looks off |
Ya. The more it settles the more you can see the water on top. The oil I put in the jar has a distinct line forming at the top now. I was going to put it in storage today, but decided to drop it of at the shop. |
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| Author: | Gigafowl [ Sun Dec 02, 2018 6:14 pm ] |
| Post subject: | Re: Oil looks off |
Good that you caught it - likely just a head gasket... Compression test should show which cylinder is the culprit... |
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| Author: | JBsuperG [ Sun Dec 23, 2018 1:14 pm ] |
| Post subject: | Re: Oil looks off |
Turns out it was a bad thermostat. Engine was running cold allowing for condensation. The EFI was feeding it extra fuel as well. You could smell the gas in the oil. |
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