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[dublin.jd]

If the breathers were blocked I would not have those fumes coming out of y pipe while it's disconnected?again that's my understanding.
I have tis2000 so I'll look it up on that to see if I find anything.
Also have epc3 if anyone needs part numbers.

Now is that a statement or a question? Clearly they are not blocked at the crank case end on the y pipe. But are they are blocked AT THE PLENUM END. Therefor the pressure is NOT ESCAPING INTO THE PLENUM. At all.

Look up cam covers, o rings and black goo while your there.

For the millionth time my breathers are clear top bottom and everywhere else. And I'm well aware how to clean them and to use genuine parts and black goo

[dublin.jd]

Your telling me that there has to be vacuum in order for the gases to get from crankcase to plenum and as far as I can see that's wrong. Crankcase pressure is created through blow by gases. Not vaccuum. The cam cover gaskets don't suck in, they blow out.

[chrisgixer]

If the breathers were blocked I would not have those fumes coming out of y pipe while it's disconnected?again that's my understanding.
I have tis2000 so I'll look it up on that to see if I find anything.
Also have epc3 if anyone needs part numbers.

Now is that a statement or a question? Clearly they are not blocked at the crank case end on the y pipe. But are they are blocked AT THE PLENUM END. Therefor the pressure is NOT ESCAPING INTO THE PLENUM. At all.

Look up cam covers, o rings and black goo while your there.

For the millionth time my breathers are clear top bottom and everywhere else. And I'm well aware how to clean them and to use genuine parts and black goo

Maybe so, but your understanding of how the breathers work is wrong. That's what we're discussing here. You asked to be corrected. Remember?

[chrisgixer]

Your telling me that there has to be vacuum in order for the gases to get from crankcase to plenum and as far as I can see that's wrong.

They have to get there by NEGATIVE pressure, or there will be oil leaks from the crank case

[chrisgixer]

Your telling me that there has to be vacuum in order for the gases to get from crankcase to plenum and as far as I can see that's wrong.

They have to get there by NEGATIVE pressure, or there will be oil leaks from the crank case

The negative pressure comes from intake vacuum from the plenum.

[dublin.jd]

And again, my gaskets blew due to Their age and not from blocked breathers. And in that case it doesnt matter if u have clean breathers or prv's

[dublin.jd]

Your telling me that there has to be vacuum in order for the gases to get from crankcase to plenum and as far as I can see that's wrong.

They have to get there by NEGATIVE pressure, or there will be oil leaks from the crank case

The negative pressure comes from intake vacuum from the plenum.

Obviously it's the vacuum that sucks the gases to the intake. But that doesn't mean the crankcase is under negative pressure.

[chrisgixer]

And again, my gaskets blew due to Their age and not from blocked breathers. And in that case it doesnt matter if u have clean breathers or prv's

Yes we know. But what's prv's...?

But again, we're discussing your understanding of how the breathers work.

Vacuum is the key, not pressure. Pressure is bad. Veeeery baaaaad.

[chrisgixer]

Your telling me that there has to be vacuum in order for the gases to get from crankcase to plenum and as far as I can see that's wrong.

They have to get there by NEGATIVE pressure, or there will be oil leaks from the crank case

Obviously it's the vacuum that sucks the gases to the intake. But that doesn't mean the crankcase is under negative pressure.

The negative pressure comes from intake vacuum from the plenum.

Oh its obvious now is it? I thought it might be

[05omegav6]

Your telling me that there has to be vacuum in order for the gases to get from crankcase to plenum and as far as I can see that's wrong. Crankcase pressure is created through blow by gases.

And the vacuum is created by the large breather pipe, with the Y in it, being connected directly to the throttle body.  That's a 2cm² hose from the crankcase to the intake. Your camcovers leak because either the covers themselves are warped, the gaskets aren't fitted correctly or they have simply perished.

The oil is under pressure from the oil pump rather than crankcase air pressure, which is always NEGATIVE when the engine is running. Find a way to stop limit oil pressure under the cam covers and you'll stop them leaking, but not before the camshafts seize.

[dublin.jd]

Would negative pressur in crankcase not suck more blow by gases in, therefore affecting performance?
Again just a question. It makes more sense to me for it to be at equal/atmospheric pressure.

[dublin.jd]

Your telling me that there has to be vacuum in order for the gases to get from crankcase to plenum and as far as I can see that's wrong.

They have to get there by NEGATIVE pressure, or there will be oil leaks from the crank case

Obviously it's the vacuum that sucks the gases to the intake. But that doesn't mean the crankcase is under negative pressure.

The negative pressure comes from intake vacuum from the plenum.

Oh its obvious now is it? I thought it might be

Read my earlier posts, I've always had that view.

[chrisgixer]

Constructive idea, remember that?

Understand your problem first. Then worry about meddling.

First thing to do then is gets done vacuum gauges and see where the pressures are.

But your wrong. Read my eatlier posts. That's always been my view.

[dublin.jd]

Anyway I'm off to bed, hopefully I can sleep after the ridiculing I've just underwent! (joke)
Thanks

[chrisgixer]

Your welcome.