This is a 5th generation, 1993 Honda Civic (VX, high fuel economy model). I filmed removal and cleaning of the breather box (oil separator). I also included locating and cleaning the PCV…
This is a 5th generation, 1993 Honda Civic (VX, high fuel economy model). I filmed removal and cleaning of the breather box (oil separator). I also included locating and cleaning the PCV…
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Hi .I need help . I replace my pcv value and I am still getting oil in my
air box. If I do what u did . do u believe it will solve my problem? I
rebuild my head last week.
Thanks for the informative video. Not a lot of information out there about
breather boxes. You might consider investing in nitrile gloves when doing a
job like this.
Im havinga problem with m breather box its shooting oil up when running my
car the mechanic gave me a option of putting a freez plug and eliminate it
completly is it a good call..?? Thanks in advance
Very helpful and well spoken. Thanks for the info man!
Thanks for the detailed video. Other than knowing you have a slightly less
nasty engine, why perform this service? Will it help the seals last
longer?
Thanks for the video! This helped me a lot, and I’ve decided to hold off
until it’s time fore an oil change, easier access without the oil filter.
I’ll be doing mine soon due to an oil leak that I’ve traced back(up) to the
breather box. I bought a new OEM o-ring, and a new PCV valve grommet. I’m
assuming the o-ring is the culprit.
So another oring can be found easily at a local auto store for what, a
dollar or less, get a new one so you don’t have to “worry” about that one
going bad, its also something that I like to call “preventive maintenence.”
Thanks though for the cleaning explanation because I’m thinking about
doing the same thing right about meow.
Just found your channel, your civic is great man and inspiring for sure. I
want to do a d15z1 swap someday in my crx
Thanks! Glad it helped. B
can anyone help? that does essentially the breathing of the block box?
If i remove the breather box will oil or anything leak out ?
ben, when I pulled my PCV valve it was pretty cruddy and cleaning it
yielded a very weak/slow responding valve. Still need to check the breather
chamber like you did, thanks for the video!
Glad you found the video helpful! B
@0hisofly Thanks a lot! I’ve heard good things about the d15z1 crx swaps…
I’d like to modify an insight or prius to double the battery pack and make
it plug in hybrid. Cheers! B
@rholleba The VX has a highly disputed PCV valve. To my knowledge, some
models had a straight valve (I believe 92 and 93 models) mounted in the
breather box as mine was. The valve at 0:42 is not a valve, it’s a hollow
elbow. Many mechanics replace this elbow with a PCV valve, ignoring the
actual PCV valve in the breather box. To make matters worse, 94 and up cars
have a straight empty connector below and a PCV in the location you speak
of. Message me FMI.
Very good suggestion, and timely as I just pulled another VX motor that I
will be doing this to in the next couple of days. I’ve been looking for a
powerful degreaser, thanks! B
I’ve noticed that my breather box is coated with oil as well. So, thanks
for the video. It helped to give me an idea what to do. However, my pcv
valve appears to be mounted on the intake manifold and not on the side of
the breather box. I thought I could see the same kind of thing on yours as
well at 0:42, for a split second, but you were moving the camera too fast
there. Is that right? In that case you’d have two pcv valves?
Where can i find the PCV valve? i have a 92 civic VEI (european vx)
@benfroggg Interesting… I’ve seen many posts in the Honda Civic forums
showing the PCV valve in the breather box. Not many talk about the PCV
valve up top, like mine. So, I was a bit surprised when I looked under my
hood. Thanks for the info. I’ll be checking to see if I have a second pcv
valve down there. I have no idea what the previous owners have done. Would
having two PCV valves make a noticable difference?
Can’t believe I missed this comment! No, I don waste beer. Ever. B
great video! just finished doing the same thing and the car is running good
now. good lookin out bro.
I’m not sure what your question is, but I think you are asking what the
breather box does- The box separates oil from air in the back of the
engine. The need for this is that stray exhaust gasses can build up in the
crankcase and blow seals and such. The crankcase must be vented but not to
atmosphere as it contains unburned hydrocarbons. It’s then sucked into the
intake manifold. Thus, it needs to be free of oil so your intake stays
clean and the fuel mix stays accurate. Hope that helps. B
@rholleba Two PCV valves wont hurt anything, or really help anything…
unless one has failed. If it fails open, no big deal. If it fails closed,
(and you didn’t know it existed down below) there would be
running/idle/driveability problems. Symptoms are slightly lower power,
increased oil consumption/smoke, etc. B
hi bro…thanks ok .. so in engine there are two breather in the valve
cover and the crankcase!!! ohhh thanks againg…i will buy a catch can oil
….because honda make a error…ahhaha the oil ..because it pollutes the
admission
I don’t know if the euro VX’s are the same, but they are likely identical.
Either in the intake manifold location near cylinder 4 or plugged into the
breather box. B
how much would that increase the mpg? like what does it do