no power while driving - Oil leakage from under the valve seal

Hello, some time ago I noticed a small leak from under the valve gasket Fiat uno 900 2001, today I was driving and suddenly lost power while driving uphill there is a problem to drive up. the leakage intensified and I add oil because it is running low, I am asking for help in solving my problem.

Yyy ... W 900, oil leakage from under valve cover gasket is normal. A few screws on the hexagon 6, a new gasket and a head for about half a year The oil is running out because ... It's leaking


For power loss, check the ignition system and spark plugs. When were they replaced? Maybe he doesn't smoke on a cylinder.

Check fuel pressure.

I checked the candles are white and burned out.

Mixture lean, check fuel pressure and cylinders as a colleague advises.

Inspection gear, high voltage wires, coil, finger, bubble. If everything was working there, as it was written above, I would check what pressure comes out of the fuel pump (or what it should be). I check the cables in such a way that I take the cable and connect it to the mass (body). Then with the other end of the wire (with a slightly insulated wire) I fly along the ignition wires one after the other (I mean, right next to the ignition wire, I move my wire attached to the car body) If there is a puncture, a spark will appear somewhere between your wire and the ignition wire . This method works best in dusk or low light. Then he quickly observes what and how. Do not forget to protect yourself and do it in some gloves and maybe with pliers so you don't get a "kick" from the spark just in case.

Ok how much it should be at 1,2,3,4

I think ok 12 bar but I can be wrong.

About 12 bar on the pistons and how to check the fuel pressure?

The easiest way to connect the pressure gauge with a tee is to the fuel filter

And it blows strongly from the oil filler cap when it is unscrewed? Maybe it blew out the gasket and there is no compression, it goes to the oil chamber and hence a large oil leak under the valve gasket. The fact that it would be interesting that it only goes outside, skipping the water channels, but maybe something is going there, you just haven't checked. See if there is oil in the coolant or liquid in the oil, white coating on the cap, etc.

I am not a mechanic, so I am curious to ask myself. A colleague Mirek16 wrote that he has a compression around 12 bar per cylinder, should the compression not be less with a damaged gasket, which results from a leak between the head and the block?

Buddy Mirek16, is the car somehow intensely smoking?

I did not notice that this was a statement after the examination, except perhaps just a confirmation of receipt of this information.
And after firing up, what is the matter of rubber pipes with coolant? Are they as hard as stone or do they give in to pressure by hand squeezing?

Buddy, check out the so-called pneumothorax (crankcase deaeration), it may have frozen and hence these oil leaks. Are you sure you checked the condition of the oil on a regular basis, maybe you have already rubbed the engine.

You write "a time ago I watched a small leak from under the Fiat valve gaskets" ... but my doubts are caused by the fact that you did not write whether what you mean is the valve cover gasket or under the head? You see ... the statement sounds unreliable, raises doubts, because if someone does not know their own language, maybe they also do not know mechanics? It's not a nuisance, it just is. Readers always have doubts as to the professionalism in a given topic, since they have gaps in another.

Buddy, if the muffler is smoking white and pushes the oil from the valve cover gasket, you may have a problem with the valve seat leakage on the so-called glass

Moderated By carrot:

Before a colleague starts giving advice, I advise you to get to know the engine structure first

Moderated By carrot:

This engine has glasses, not ordinary levers?

Hello, the replacement of the gasket under the valve cover I sealed the silicone to the temperature, and with the power of what it turned out that my colleague Andrzej led me on the trail fuel filter fuel with a little water after replacing the fuel filter regained power but by the way I checked the entire spark plug system wires cleaning the basket on the thread injection into the bundle, as they say and I managed, the car ticks as always, thank you and best regards.