Diy catch can install

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cjweb11

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I just assumed the passenger side allowed fresh air into the crankcase and drivers side vented it out to eliminate pressure changes meaning only the driver side would be dirty
 

Marioski

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So how much oil is everyone getting in their catch cans?


I installed my catch can and have run it for about 1500 miles. (Same catch can as in post #1) I emptied it into a spray can bottle lid and it filled to the top with oil. I was a little shocked as I run a can in my mustang and hardly get anything. At this rate, I'm going to need a gallon sized catch can!

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Gron86

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So is this vacuum necessary? Would it affect the trucks performance if you unplugged it. Capped off the line on top of the intake manifold and simply put a small filter on the line coming from the valve cover so it could vent.
 

Physh1

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Yes, you could in theory, but you'd be venting all those oil vapors into the atmosphere & it won't pass visual smog if that's something you do. Either way...the catch can will a) keep the system closed, b) pass emissions, & c) keep all the oil from sludging up the top end.

You may throw an SES light with an open system...the computers may trip on the missing air. A catch can on a closed system gives the environmental benefits of a closed pcv without sludging up the top end. It allows you to remove contaminated vapors from the crankcase & collect it safely.

Basic definitions of closed vs open pcv systems...

Open PCV Systems

The open system draws fresh air though a vented oil filler cap. This works fine as long as the vapor volume is minimal and when the engine is running. However, when the crankcase vapor becomes excessive - or when the engine is shut off - it is forced back through the vented oil filler cap and into the open atmosphere. The open PCV system, though successful at removing contaminated vapors from the crankcase, is not completely effective as a pollution control device.

Closed PCV Systems

The closed PCV system draws fresh air from the air filter housing. The oil filler cap in this system is NOT vented. Consequently, excess vapor will be carried back to the air filter housing and from there into the intake manifold. The closed system prevents vapor, whether normal or excessive, from reaching the open atmosphere. The closed system is very effective as an air pollution control device.

Cameron
 
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cjweb11

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So how much oil is everyone getting in their catch cans?

Dang that seems to be way more than I've heard anyone else report. I left mine alone for about 3-4K miles before emptying it. Only drained about 1oz
 

Physh1

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After just replacing my intake gaskets & valve cover gaskets, along with cleaning the TB out I decided to do this too...

Catch can from catchcansdotcom, 3ft 3/8 pcv line from napa, some clamps, & high temp thread sealant...

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Just did a full tune up & oil change so we'll see what I collect by next oil change.

Cameron
 
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Marioski

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What's that can attached to the vacuum booster with the electrical connector? I've never seen that before.


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Physh1

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Vacuum canister for the brakes...some have it some don't.

Cameron
 

osidesurfer365

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Just received my catch can today. Will post pics after installation is complete. Interested in results after next oil chang
 

osidesurfer365

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Installed it this morning. Pretty straight forward. I drive pretty hard so it will be interesting to see results at next oil change.

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08grey

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Installed it this morning. Pretty straight forward. I drive pretty hard so it will be interesting to see results at next oil change.

Side fitting goes to PVC in this install right? Pic leads me to believe it could be switched.
 

NathanJax

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Installed mine today... Took about 5 minutes. I bought mine from CatchCans.com

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