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anyone know what this is for?

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Old 01-12-2010, 04:07 PM
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anyone know what this is for?

anyone know what this is for?-dscf0500.jpg
Old 01-12-2010, 04:16 PM
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crank case ventilation. Supposed to be connected to the intake, but lots of people just put that little filter on there.
Old 01-12-2010, 04:36 PM
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is it really necessary? i just put a 22re in my 4runner and i have nothing there just air blows out!
Old 01-12-2010, 04:46 PM
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Originally Posted by ethanp123
is it really necessary? i just put a 22re in my 4runner and i have nothing there just air blows out!
Having nothing there is really like running without an oil cap, you've opened the top end and your oil system to what ever funk wants to get in.

The little filters are a nice easy way out when you're doing something like The ISR mod, but even then your still exposed to getting water in your engine, I'd do something about it post hast.
Old 01-12-2010, 04:46 PM
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Yes it is necessary, otherwise you would have a massive vaccume leak
Old 01-13-2010, 12:24 AM
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yes. quite necessary, either having it hooked up to the intake or have a filter on it like you do there. I bet your rig would run better with a hose attaching it to the intake.



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