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Old 03-30-2005, 11:07 PM   #1 (permalink)
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PCV Valve

Hey guys, I met a dude that had a gen 3 camry and he did something funny with his pcv valve. You know how pcv valve reroutes wutever back into the intake manifold right? He told me that he didn't want to put back contaminated source back into the intake manifold from the head so he put a small breather filter on the head and no connection into the manifold. So basically he disconnected the pcv valve from going into the manifold. Is this safe? Any positive things come out of this?
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Old 03-31-2005, 12:01 AM   #2 (permalink)
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Your gas milage might go down. And the engine might have higher output with the cold air instead of the recycled gas. By the way shouldn't the filter be on the manifold?
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Old 03-31-2005, 01:25 AM   #3 (permalink)
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he said hte filter is on the head... yes thats fine but... what do you think oil catch cans are for?
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Old 03-31-2005, 07:42 AM   #4 (permalink)
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Pulls gases out of engine...

The purpose of the PCV is to PULL out gases (blow-by) from the crankcase.... Your oil will become MORE contanimated over time resulting in SLUDGE build-up.... Bob
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Old 03-31-2005, 08:05 AM   #5 (permalink)
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vent on the crankcase will get rid of the gases...but you may have probs down the road
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Old 03-31-2005, 03:58 PM   #6 (permalink)
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what kind of problems?
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Old 03-31-2005, 04:11 PM   #7 (permalink)
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You need to THINK a little...

I can't believe that you can't figure it out that messing with your PVC system won't harm your engine......!!!!!.... Say you put your head inside a plastic bag & breathed normal, after a while your air is NO GOOD & you DIE.... Same for your Camry engine, it needs fresh air so your oil won't become loaded with dillutents such as acid, unburned gas & oil vapors..... Do you now understand???....Bob

P.S...Not upset, just trying to get the point accross.....
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Old 04-01-2005, 08:44 PM   #8 (permalink)
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Quote:
Originally Posted by Bmaintz
I can't believe that you can't figure it out that messing with your PVC system won't harm your engine......!!!!!.... Say you put your head inside a plastic bag & breathed normal, after a while your air is NO GOOD & you DIE.... Same for your Camry engine, it needs fresh air so your oil won't become loaded with dillutents such as acid, unburned gas & oil vapors..... Do you now understand???....Bob

P.S...Not upset, just trying to get the point accross.....
wait I'm sorry, I'm new at this and I'm just trying to understand. If I don't connect the crankcase to the intake manifold with the pvc valve, the crankcase doesn't get enough clean air and it'll go bad?
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Old 04-01-2005, 10:00 PM   #9 (permalink)
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Yes, the oil will go bad in a hurry, thus taking the life out of your engine..... The oil is the life blood of your engine & must be kept clean & fresh....
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Old 04-01-2005, 10:16 PM   #10 (permalink)
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Are you sure you're not thinking of the EGR valve?

ie: Exhaust Gas Recirculation valve?
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Old 04-01-2005, 10:32 PM   #11 (permalink)
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I'm sure

Yes I am sure, the EGR value is also needed....
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Old 04-02-2005, 12:18 AM   #12 (permalink)
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Bmaintz, the EGR valve isn't need except for emissions purposes.
I wasn't asking if it was needed, I was asking the thread poster if this is the valve he intended to type, and not the PCV, as he described the EGR system.
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Old 04-02-2005, 02:06 AM   #13 (permalink)
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The safe thing to do would be to get a 'catch can'.

Essentially it filters out the crap from the PCV. You can connect it to your intake manifold, but you don't really need to. You just put breather filters on the intake manifold hole and the outlet on the catch can.

http://search.ebay.com/oil-catch-can...trypageZsearch
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Old 04-02-2005, 04:01 AM   #14 (permalink)
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Quote:
Originally Posted by userlain
Essentially it filters out the crap from the PCV. You can connect it to your intake manifold, but you don't really need to. You just put breather filters on the intake manifold hole and the outlet on the catch can.
A catch can collects the oil droplets, while vapors are recirculated back into the engine.

You can't put a filter on the hole on the intake manifold. If you did, you'd have a nasty vacuum leak. You'd have to plug the hole.

The idea behind a pcv (positive crankcase ventilation) valve is that the vacuum in the intake manifold pulls the valve open. This lets the vapors from the crankcase recirculate back into the engine (thru the intake manifold).

A pcv valve in a one way valve. In other words in only flows in one direction.


PCV is a sealed system (from the factory anyways). Nothing vents to the atmosphere. If were talking about a 5S-FE, the pcv valve plugs into the top of the valve cover. The other end connects to the intake manifold.
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Last edited by 88 LE; 04-02-2005 at 04:07 AM.
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Old 05-18-2005, 12:45 AM   #15 (permalink)
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Is there aPCV valve on the Gen 5 V6 LE ? And Where is it ?
Thanks in advance
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