PCV Valve or bad head gasket?

[tmontague]

Originally Posted by CTScott

The filter is not around it - It is mounted into the block below it. The 1ZZs have two, where the 1NZs just have one. The leaking issue above is either a bad o-ring or a dented valve assembly.

Thanks, is it possible to clean the filter/screen on a 1nz? I'll have to clean the oil around it and see if it comes back again or stays clean. I may be in the same boat at the op.

[CTScott]

Originally Posted by tmontague

Thanks, is it possible to clean the filter/screen on a 1nz? I'll have to clean the oil around it and see if it comes back again or stays clean. I may be in the same boat at the op.

The filter only costs a couple of dollars, but if you remove it you can easily clean it with degreaser. The filter is very fine mesh with a plastic support frame.

[tmontague]

And I'm assuming it is accessible to remove once the OCV is removed, or would one need to remove the valve cover?

[CTScott]

Again, it is "below" the OCV. You can remove it with or without removing the OCV.

[CrankyOldMan]

Looks like CT is talking about the parts in circle 1, the OCV itself is in circle 2.

[tmontague]

Thanks for that, makes it a little more clear

[duendeverde]

Originally Posted by CTScott

The filter is not around it - It is mounted into the block below it. The 1ZZs have two, where the 1NZs just have one. The leaking issue above is either a bad o-ring or a dented valve assembly.

I just noticed that the oil that was dripping from the pcv valve reached A/C compressor, actually it passed through the alternator until it reached the compressor near the belt. Can it be affected both the compressor and alternator? I'm going to take out the front bumper to have a clear look this saturday

[CTScott]

Originally Posted by duendeverde

I just noticed that the oil that was dripping from the pcv valve reached A/C compressor, actually it passed through the alternator until it reached the compressor near the belt. Can it be affected both the compressor and alternator? I'm going to take out the front bumper to have a clear look this saturday

The compressor is sealed, so other than making the clutch slip it would not have an effect. The alternator is wide open, but it should not effect anything, other than maybe burning off a bit.

[duendeverde]

Originally Posted by CTScott

The compressor is sealed, so other than making the clutch slip it would not have an effect. The alternator is wide open, but it should not effect anything, other than maybe burning off a bit.

Mmmm ok, kind of ought :/

Today, I was parked for about 1-2 hour inside the car with the a/c on and the a/c for some reason the output of air was 2 low and the temperature was warm. When I got home and checked under the hood, the oil that was leaking from the ocv valve reached the top of the alternator near the pulley

[tmontague]

Originally Posted by duendeverde

Mmmm ok, kind of ought :/

Today, I was parked for about 1-2 hour inside the car with the a/c on and the a/c for some reason the output of air was 2 low and the temperature was warm. When I got home and checked under the hood, the oil that was leaking from the ocv valve reached the top of the alternator near the pulley

I have heard other Yaris owners state that the a/c while no moving does not work nearly as well. I have yet to be stopped long enough (nor do I run my a/c enough) to notice this myself, but something to think about depending on how warm the air was coming out and how hot the ambient temp was of the outside air.

As a side note. After 150km of driving since I cleaned off the oil on the outside of the OCV it has yet to build back up. Likely it was just there from when my valve cover became loose. With that said if your's is leaking that much then definitely change it out as soon as you can as it's obviously damaged to be leaking that bad.

[duendeverde]

Originally Posted by tmontague

I have heard other Yaris owners state that the a/c while no moving does not work nearly as well. I have yet to be stopped long enough (nor do I run my a/c enough) to notice this myself, but something to think about depending on how warm the air was coming out and how hot the ambient temp was of the outside air.

As a side note. After 150km of driving since I cleaned off the oil on the outside of the OCV it has yet to build back up. Likely it was just there from when my valve cover became loose. With that said if your's is leaking that much then definitely change it out as soon as you can as it's obviously damaged to be leaking that bad.

Yep, just bought a couple of hours ago the OCV valve, In Puerto Rico temperatures fluctuates between 80-95 not very helpful LOL I'm gonna try and do a DIY of changing the OCV for purposes of Yaris Forum

[duendeverde]

Quick update:

I changed today the OCV valve and guess what? It was broken in half and another surprise, it was sealed with a strong "industrial" sealant in the middle of the OCV valve