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Old 12-10-2002, 08:23 PM   #51
Austin
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Based on your picture, I can't tell where the crankcase vent is hooked up.

Based on your description of how your system is connected, IMO it's wrong.
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Old 12-10-2002, 08:24 PM   #52
Austin
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Quote:
Originally posted by sponaugle


When I get my car up and running again, I'm going to put an old mechanical boost gauge on the output of the valve covers and the crank case, and record the pressure under different load conditions. I'm interested to see how they behave.. I too have seen puffs of air coming from the valve covers, but in my case is was on an engine with a cracked ring landing, so there was a lot of blowby building up pressure in the crank. Interesting..

Jeff
/me staying tuned for results...
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Old 12-12-2002, 01:17 PM   #53
djerickd
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[quote]Originally posted by djerickd
[b]


[quote]

my crankvent is hooked up from that bottom yellow arrow and t'ed in just as shown.

Is that wrong you think?

I was thinking of running a K&N breather on that silver pipe in front of the intercooler, then only running the crank vent through the can back into the induction pipe. But then the PCV would be left out...

how does that sound? Any ideas?

Thanks for helping out! I love NASIOC!
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Old 12-12-2002, 04:23 PM   #54
Austin
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It looks from the picture like your PCV valve is T'd into the two crank vents (the PCV valve is at the right hand end of the long bent yellow arrow).

It looks to me like your crank vent (the short yellow line) isn't hooked up to anything.

That's what I see from your picture. Is there something I can not see?

If that's how it's actually set up, then it's definitely wrong. Your crank vent is blocked off.
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Old 12-12-2002, 05:21 PM   #55
djerickd
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Quote:
Originally posted by Austin
It looks from the picture like your PCV valve is T'd into the two crank vents (the PCV valve is at the right hand end of the long bent yellow arrow).

It looks to me like your crank vent (the short yellow line) isn't hooked up to anything.

That's what I see from your picture. Is there something I can not see?

If that's how it's actually set up, then it's definitely wrong. Your crank vent is blocked off.
Ok, correct me if I'm wrong.

1. the short yellow line represents the bung on the induction hose where the CRANK VENT is supposed to connect to.

2. the black hose that is tapped into the clear hose is routed from the crank vent, and is normally supposed to hook where the short yellow line is.
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Old 12-12-2002, 06:45 PM   #56
Austin
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OK, you're right.

It's been a while since I've seen a stock black plastic induction pipe, and I forgot that that bung stuck up like that. I thought that was your crank vent.

You say "the black hose that is tapped into the clear hose is routed from the crank vent, and is normally supposed to hook where the short yellow line is."

That means that your valvecover vents and crank vent are T'd in together, then you run that line to your catch can, then back to the induction pipe. That's identical to the setup I had problems with.

**What are you doing with the PCV valve?**

Is is capped off?
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Old 12-13-2002, 08:51 AM   #57
djerickd
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My PCV valve is untouched.

What I did last night was run only the crankvent to the induction pipe and the valve cover vents are now venting to atmosphere. Hopefully that is the correct way.

I'm planning to eventually "T" in the hose going to the PCV valve so the only air going into the manifold or induction pipe is filtered through the catch can first. I figured the adaptor is basically a "T" so if I run the hose comming from the bung on the engine block to the catch can then from the can back to the same area with a "T", one side connected to the induction pipe the other to the PCV valve.

I hope that will still create enough vaccum as this would be similar to the stock setup but with the air comming from the crank vent on the block being filtered first before it enters the intake manifold or the induction pipe.

I think you said your setup was like this now.
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