oil in coolant?

[Joe Gopan]

WARNING:
Do not operate your Jeep if the Crank Case is gray with water, it has homogenized and will not lubricate.

[fernando mendes]

Light grey is an indication of coolant & will be evident in feel when rubbed between fingers.
Rise in level & oil smelling of fuel is an indication of a bad fuel pump diaphragm.
Check the fuel pump output/pressure.

Ok.Thanks.Regards.PS:Only did know about(rubbed between fingers).

[fernando mendes]

WARNING:
Do not operate your Jeep if the Crank Case is gray with water, it has homogenized and will not lubricate.

My gee is ok.Fuel or water becomes gray?

[Joe Gopan]

Gray crankcase oil is indication of oil and water mix. Do not drive the Jeep, it is not getting lubrication.

[artificer]

Fuel doesn't turn oil grey, coolant [water] does.
When rubbed between fingers both conditions will clearly have a different feel/texture to straight oil.
Try this:
1. Straight oil....rub between fingers & will feel sticky oily
2. Mix good oil with water....rub between fingers & will feel soapy
3. Mix good oil & fuel....rub between fingers & will leave a dryer feeling like kero or distillate rather than smooth oily

[fernando mendes]

Hi Luc.When I changed the oil days ago I noticed this: "When draining oil there will be some water coming out first"."An engine operated in humid conditions and short runs will cause plain water in the crank case and after a long period of time even mix the oil with water and get the grey color."(I think this is my case) Thanks.Regards.

[dinof]

You can also throw in a bottle of water pump lube & anti-rust with water. A lot of Model A guys would buy the emulsified oil and use that with water with great results. The oil is the stuff machinists used to cool their work on the lathes. This oils will mix with water

[fernando mendes]

Fernando, Change the oil and filter and see what happens.
Try to avoid short runs and keep an eye on coolant level.
Coolant level is the main clue, if no loss there the water is coming out of the air.

Good luck,
Luc

I already changed the oil and filter oil element in day 8th this month.I remember that the last prior oil change was in january,27th 2016,two years ago and I only ran 230 kilometers.BUT my main concern is with FUEL inside the crankcase.Diaphragm fuel pump..Thanks.Regards.

[artificer]

Diagnose....What happens when you feel/rub the oil between your fingers?

[fernando mendes]

Fernando, When fuel dilutes the oil the oil pressure will show.
It doesn't take much fuel to thin out oil viscosity.
Oil pressure will drop shortly after the oil has been changed if there trully is a leak.

My Dodge PU oil gauge needle is not full operating,I think.It was almost damaged many years ago.When the engine is stopped the needle is between 0-40,when engine is functioning the needle is between 40-80.

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[fernando mendes]

Diagnose....What happens when you feel/rub the oil between your fingers?

Almost none viscosity.

[fernando mendes]

The offending cylinder will make the spark plug much cleaner or a brighter color.
My gee in january'2016,water inside #1 and #4 cylinders.

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[fernando mendes]

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My gee sump in january'2016 before restoration engine.

[fernando mendes]

Fernando, You can't thrust an electric gauge.
2 ways to skin that cat :
Remove the electric gauge sender from the engine and temporary install a mechanical guage.
Refresh oil bath and observe oil pressure overtime.
If pressure drop after a while you know that fuel enter the sump.
Second way is to remove the fuel pump and clamp it in your bench vise.
Hook it up on a fuel can and pump fuel through.
Than plug the outlet line and bring it up on pressure by pumping untill the actuator doesn't give any resistance.
If the pressure drops keep it up by pumping.
If the membrane leaks, fuel will definitelly appear inside the pump body and drip out on your bench.
I think that the second option is the way to go as after all...if it leaks...the pump needs to be repaired anyway.

Your jeep engine seems to be an oil burner, too rich or you ad aditives in the fuel.
2 clean pistons and 2 dirty pistons is a sign but not always a sign of consuming coolant.

Luc

My Dodge PU oil gauge is mechanical.I can put another mechanical.I can not thrust an electric gauge in engine block.In my gee pics the pistons #1 and #4 were clean because I used RAD CLEAN product in the radiator.Thanks.Regards.

[fernando mendes]

Hi Luc.My Dodge PU piston rings are very worn.I think this is relationed with more condensation.We did not speak about this.What do you think?