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Yes, the "flame trap" includes the housing that the actual flame trap (plastic or metal with many holes in it) sits in. If you disconnected the hoses to the flame trap then you probably wouldn't see much gas since you effectively removed the vacuum source which is pulling the gases out of the crankcase...
The PCV system consists of the following (starting from the engine block):
"Breather Box/Oil Separator" - big black box under the intake manifold.
This box collects whatever oil vapors that may be in the crankcase and turns the vapors back into a liquid oil. This separated oil flows down a long tube that ends in the oil pan.
"Flame Trap" - This is the housing that we are talking about, inside is the plastic disc with all the holes in it. Has one inlet and two outlets. Inlet attaches to the breather box. Two outlets: Small one connects to a nipple on the intake manifold, the other (larger) outlet connects to the Air intake hose (I believe) just before the throttle body.
IPD has a great picture:
http://www.ipdusa.com/images/Categories/RearWheelDrive/flametrapdiagram3%20copy.gif
The breather box may be plugged with oil residue which will prevent the system from breathing properly. The test to see if your crankcase ventilation system (PCV) is working is to loosen the cap while the engine is running. If the cap dances/jiggles while its loose then you have a plugged PCV system, if it stays put then the system is doing its job. Did you change the gasket on your oil cap?
Check the 700/900 FAQ for details about this test and for solutions to your problem.
Good luck,
Bean
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'80 242GT 93k, '94 945T 139k, '89 765T 68k (new '94 B230FT)
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