Engine Vortech Fox Oil mess!!

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Bdb92Vert

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Sep 27, 2023

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Sep 27, 2023

#1

• Sep 27, 2023

• #1

Hi everyone! I’m new here and desperately in need of some advice. I recently purchased a 92 foxbody vert supposedly a 331 stroker. But that’s neither here nor there. Car does have SVE heads, Trickflow upper and lower manifold. and a Vortech V2 car starts up and drives fine but it’s a complete smoke show down the road. As soon as you rev the car from idle you see oil coming out of the Breather on the valve cover. I’ve checked and changed the PCV I did notice it’s missing the mesh screen inside. I don’t know if that has something to do with it. Please if anyone has any experience with these blower 5.0s please help. Thank you.

 

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General karthief

wonder how much it would cost to ship you a pair

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#2

• Sep 28, 2023

• #2

You need to assess the condition of the engine. First thing would be a compression test, that's where I'd start.

 

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Noobz347

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#3

• Sep 28, 2023

• #3

Agree with karthief. There is no way to know where to start so, you have to start at the beginning.


On a side note: That same breather on the valve cover tells me that your PCV system is not operating.

Just get it into your mind that a pretty good portion of the engine is probably going to have to come apart. If it were me, I'd pull the blower system out and run the car N/A until I was satisfied that it was all in good order.

Get one of these as soon as possible:

Amazon product ASIN B000EW0KHW

 

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AeroCoupe

lube between the nut and the face. I know my lubes

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#4

• Sep 28, 2023

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Other thing is the car is a 92 and running speed density so is it a Ford ECU or aftermarket ECU?

 

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Noobz347

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AeroCoupe said:

Other thing is the car is a 92 and running speed density so is it a Ford ECU or aftermarket ECU?

Click to expand...

Where did you see SD?


Also: If that's true, it's pretty unlikely that the engine is a 331 unless the EEC is aftermarket.

 

AeroCoupe

lube between the nut and the face. I know my lubes

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#6

• Sep 28, 2023

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In the picture there is no MAF in the discharge pipe between the blower and the TB. I guess it could be in the inlet air piping between the (I am guessing here) filter element in the inner fender and the the inlet on the blower.

 

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Pinellas50

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Sep 29, 2023

#7

• Sep 29, 2023

• #7

Start by disabeling the PCV as well. You can put a breather in the PCV hole. The hose from the TB to the valve cover already appears to be eliminated. That's what I had to do to stop the blower from pressurizing the cranckcase.

 

Noobz347

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• Sep 30, 2023

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Pinellas50 said:

Start by disabeling the PCV as well. You can put a breather in the PCV hole. The hose from the TB to the valve cover already appears to be eliminated. That's what I had to do to stop the blower from pressurizing the cranckcase.

Click to expand...

Yikes. It might surprise you to know that I run a fully functioning and closed PCV system with boost. I installed two hardware store air/oil separators and made some other changes to help with the other cover but it all works.

I had two goals at the time I did it: 50 state legal (I was active military) and keeping moisture scavenged from the oil (climate dictates severity)

As a last resort, I might eliminate the PCV system... or a drag car. It seems like if there is [that much] blow-by then there might be another issue.

 

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Pinellas50

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Oct 1, 2023

#9

• Oct 1, 2023

• #9

You have a point. My suggestion is how we used to stop the blower from pressurizing the crank case back in the 90's.

However, my advice still stands as far as figuring out the cause of the blow by. It is completely feasible right now that boost is getting past the pcv and pressurizing the crank case. Take that out of the equation to make sure the motor is ok AND get rid of the current vacuum leak the breather is introducing.

If the motor is OK, then a functional PCV sysyem could be designed if he chose.