Technical Help me please, Fiat Stilo 1.6 16V 2002 has creamy whitish emulsification

[borhan0089]

Hi friends,
The oil cap or oil filler is creamy whitish yellow emulsification all around the top of the oil pipe.
Head gasket is fine and I don't lose any water of the coolant.
I changed the oil and its filter last month.
I don't know what is the problem.
Everytime I clean the top of the pipe, but the problem always comes back. And no one could help me.

Anyone please can advise me what to do?

Best regards,

 

[flyingdutch]

First of all is the car daily driver or no ? And which country do you live in ? We get a lot of this on cars that are not daily driven here in netherlands cause of humidity in the air.

 

[Ralf S.]

How far do you drive the car every day? If it's just 2km, then as flyingdutch says, it's just condensation inside the engine.

You can help the car by cleaning it out, as you are doing... but also check that any crankcase vents are clear. There's usually a rubber tube from the cam cover to the air cleaner or inlet pipe. Remove the pipe and clean it out. If you have something like a thin metal coat-hanger you can wrap some rag around it and push it into the pipe.. but be careful not to puncture the pipe.

There may be some kind of filter inside the pipe (like a metal coil). If there is, pull it out and clean that too... it gets covered in the same brown mayonnaise.

Otherwise the only real "cure" is to take the car for a long drive once a week so that it gets properly hot (but don't just leave it to idle on your driveway, it has to be proper driving). About 15kms should do it... especially if there is a bit of motorway in your route.


Ralf S.

 

[varesecrazy]

It is just natural moisture. And you need engine HEAT to bake it out of the engine..and its oil.

I suspect the top of the engine may have a LOT of mayo .. seen that with the 1.1 FIRE motors
borhan0089 climatically you will have similar conditions to the people who have responded.

How regularly do you drive for 10 minutes with the temperature of the engine at 'normal' ( mid.point.. halfway. 110'c)

Charlie

 

[Ralf S.]

I think the FIRE has a slightly recessed oil cap (the rubber, press-in type?) and so they don't get washed out by the oil when the engine is running (or possibly the cap is not near an oilway or a cam lobe, which would splash oil about.

I always used to be vexed by mine... but then I thought, if it's on the cap, it's not falling back into the engine, so better on the cap than not..

I dunno... anyway the beast did 120k and never had any kind of engine problem so it can't be too bad.

Ralf S.

 

[varesecrazy]

There is .. .was..
A thin metal 'baffle' inside the cam cover..
prising that out.. I found A LOT of mayo

 

[borhan0089]

First of all is the car daily driver or no ? And which country do you live in ? We get a lot of this on cars that are not daily driven here in netherlands cause of humidity in the air.

Normally I drive more than 5 KM per day.
Yesterday when I saw the problem, I drove about 500 KM
I am in Germany...

 

[flyingdutch]

And which engine do you have ?

 

[varesecrazy]

Normally I drive more than 5 KM per day.
Yesterday when I saw the problem, I drove about 500 KM
I am in Germany...

Was the air temperature less than 5'c on your 500km drive?

 

[Ralf S.]

There is .. .was..
A thin metal 'baffle' inside the cam cover..
prising that out.. I found A LOT of mayo

Ah yes.. I remember the baffle. Never had any behind mine (although I only ever removed the lid for it's "annual new rocker gasket" during the summer months..


Ralf S.

 

[borhan0089]

Was the air temperature less than 5'c on your 500km drive?

Yes it was about 0,1,2 Celsius.

 

[borhan0089]

and which engine do you have ?

1.6 16v 2002

 

[varesecrazy]

Yes it was about 0,1,2 Celsius.

Think at what temps the car glass mists..

Perfectly natural .. just need HEAT to dissipate the moisture

 

[flyingdutch]

You will have to clean carter ventilation system now to see the results .I live in NL so last year had the same problem on abarth cleaned the ventiltion system , and now everyday giving the car a little bit of acceleration play no more yoghurt on the cap