Camry & Solara LoungeDiscussion area for every generation of Toyota's family car, the Toyota Camry. Lexus ES250/300 owners welcome! Topics of discussion range from fuel economy, safety, modifications, performance and more.
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?
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?
he said hte filter is on the head... yes thats fine but... what do you think oil catch cans are for?
__________________
125 front wheel horsepower with major retard issues between 4500-5200RPM -
OD switched off, even when not in 3rd results in major power loss/rpm drop.
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
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.....
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?
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....
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.
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.
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.
The AutoGuide.com network consists of the largest network of enthusiast-owned enthusiast-operated automotive communities.
AutoGuide.com provides the latest car reviews, auto show coverage, new car prices, and automotive news. The AutoGuide network operates more than 100 automotive forums where our users consult peers for shopping information and advice, and share opinions as a community.
ToyotaNation.com is an independent Toyota/Lexus enthusiast website. ToyotaNation.com is not sponsored by or in any way affiliated with Toyota Motor Sales, USA, Inc. The Toyota, Lexus and Scion names and logos are trademarks owned by Toyota Motor Sales, USA, Inc.