When hot and shut off, vapors from the gunk in the manifold get on the TB and air valve. There is some from running conditions, as well.
who's using a catch can on there pcv system?
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Fair enough. Just want to know I'm not crazy.
ETCG swears by getting Honda PCV valves instead of aftermarket. I've got a Beck/Arnley in right now. Should I be worried?
Says he's seen some aftermarket affect idle on Honda 4 cylinders.
ETCG swears by getting Honda PCV valves instead of aftermarket. I've got a Beck/Arnley in right now. Should I be worried?
Originally Posted By: ltslimjim
Fair enough. Just want to know I'm not crazy.
ETCG swears by getting Honda PCV valves instead of aftermarket. I've got a Beck/Arnley in right now. Should I be worried?
Says he's seen some aftermarket affect idle on Honda 4 cylinders.
never had that happen to me. I have a B&A on my TL (made in japan which is probably oem), I have a fram on the accord.
Don't notice anything different. At every oil change i pull it off and do a rattle test. Sometimes spray it with carb/throttle body cleaner and then put it back on.
Fair enough. Just want to know I'm not crazy.
ETCG swears by getting Honda PCV valves instead of aftermarket. I've got a Beck/Arnley in right now. Should I be worried?
never had that happen to me. I have a B&A on my TL (made in japan which is probably oem), I have a fram on the accord.
Don't notice anything different. At every oil change i pull it off and do a rattle test. Sometimes spray it with carb/throttle body cleaner and then put it back on.
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Originally Posted By: Mau
Originally Posted By: ltslimjim
Fair enough. Just want to know I'm not crazy.
ETCG swears by getting Honda PCV valves instead of aftermarket. I've got a Beck/Arnley in right now. Should I be worried?
Says he's seen some aftermarket affect idle on Honda 4 cylinders.
never had that happen to me. I have a B&A on my TL (made in japan which is probably oem), I have a fram on the accord.
Don't notice anything different. At every oil change i pull it off and do a rattle test. Sometimes spray it with carb/throttle body cleaner and then put it back on.
I figured as much if it moves correctly, flows one way and not the other should be fine.
I am concerned still with cleaning the old breather box since the OE PCV valve of nearly 20 years when I got the car was not functioning and had some grime in it.
Originally Posted By: ltslimjim
Fair enough. Just want to know I'm not crazy.
ETCG swears by getting Honda PCV valves instead of aftermarket. I've got a Beck/Arnley in right now. Should I be worried?
never had that happen to me. I have a B&A on my TL (made in japan which is probably oem), I have a fram on the accord.
Don't notice anything different. At every oil change i pull it off and do a rattle test. Sometimes spray it with carb/throttle body cleaner and then put it back on.
I figured as much if it moves correctly, flows one way and not the other should be fine.
I am concerned still with cleaning the old breather box since the OE PCV valve of nearly 20 years when I got the car was not functioning and had some grime in it.
I run one just to keep the crud out of my intake valves.... THAT alone is more than cleanliness.
Originally Posted By: SteveSRT8
Exactly. For example, what about my fleet vehicles?
400k + miles on a 6.0 Savana means my engine should be ready to die from all that gunk, eh? But it's fine and actually runs like a gem. WITHOUT a catch can! How can that be?
Absolutely. Perhaps if they had 20,000 mile OCIs or were ridiculously hard on the oil, or the PCV system was a little substandard from the factory, then a catch can might be a little more "essential." Of course, we've seen engines that would experience a major benefit from them. In most other cases, the benefit, while there, would be rather difficult to actually measure or even observe.
Exactly. For example, what about my fleet vehicles?
400k + miles on a 6.0 Savana means my engine should be ready to die from all that gunk, eh? But it's fine and actually runs like a gem. WITHOUT a catch can! How can that be?
Absolutely. Perhaps if they had 20,000 mile OCIs or were ridiculously hard on the oil, or the PCV system was a little substandard from the factory, then a catch can might be a little more "essential." Of course, we've seen engines that would experience a major benefit from them. In most other cases, the benefit, while there, would be rather difficult to actually measure or even observe.
Precisely my point. Not disputing a change, just whether or not it really provides a real world benefit.
Steve, I also think it's interesting to pay attention to which vehicles out there actually have a custom catch can kit available, and those whose market is served by a universal application. I may be wrong, but my reasoning is that if someone saw the real need for the thing for a certain application, it would be available as a custom, aftermarket part. For instance, when I just looked to see what would be available for my G, they're all universal fit types. And we do know for these cars, there are all kinds of people buying bizarre addons.
Originally Posted By: SteveSRT8
You missed the point.
The question is: is there any real benefit? As stated, it works on ANY engine. Show me a real world tangible benefit, not just feel good cleanliness. Show me horsepower, fuel mileage, engine life, ANYTHING?
Sorry, but if it was such a big deal it would already be on there. Just a simple purge valve controlled by the ECU or a dashboard light to tell you it's full, not expensive either.
No performance gains, but it saves cleaning plugged EGR ports on the poorly designed Ford 3.8/4.2 valve cover, plenum, Intake manifold. Removing that plenum requires a contortionist with titanium knuckles!
You missed the point.
The question is: is there any real benefit? As stated, it works on ANY engine. Show me a real world tangible benefit, not just feel good cleanliness. Show me horsepower, fuel mileage, engine life, ANYTHING?
Sorry, but if it was such a big deal it would already be on there. Just a simple purge valve controlled by the ECU or a dashboard light to tell you it's full, not expensive either.
No performance gains, but it saves cleaning plugged EGR ports on the poorly designed Ford 3.8/4.2 valve cover, plenum, Intake manifold. Removing that plenum requires a contortionist with titanium knuckles!
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