about engine breather hose???

bluesh1 · 08-03-2008, 09:16 AM

hello guyz hope you can help me about my pick up
it is ok to remove the connection of engine breather to the stock air box then jst close the hole of engine breather to air box

OMD · 08-03-2008, 08:45 PM

do you mean the hose that come out from the valve cover? that is the Positive Crankcase Ventilation or PCV. yes it is OK to disconnect it from the air box but you have to put a filter on it, don't block the PCV just the port on the air box..

bluesh1 · 08-03-2008, 08:55 PM

thnks mate hope u can give some more tips

BRUCE LI · 08-04-2008, 08:33 PM

hey guys, pls share some photos about this topic, we want to learn about the
PCV, etc.

newsavedone · 08-06-2008, 07:12 AM

The PVC stands for Positive Crankcase Ventilator. Its hose is connected to the air filter housing so the air intake provides suction to ventilate the crankcase so corrosive fumes and moisture dont stay in the engine. It also sucks the polution causing fumes into the air intake and burns them so they dont pulute the air. If you disconnect the hose, no suction is present, and fumes build up in engine crankcase, causing rapid deteration of engine oil due to gas that seeps past the pistion rings into the crankcase, and delutes the oil so in about a month, instead of having a 10W 40 oil, you have a 10W 25 oil, so less luberacant for engine, more weare!!!! PLUS YOU ARE NOW THE FILTER for the polution!!!!!!!!!!

fitsandy · 08-06-2008, 07:27 AM

hi dear,

havent you heard of oil catch can, make one at home and fit it between PVC and air cleaner hose... simple but very good

drachir_1900 · 08-06-2008, 08:26 AM

nice info, I checked my pcv, connection mine goes from the top cover engine bloc to the
intake manifold right after the carb. So what ever comes out from that cover (usually excess air-fuel mixture) goes back directly to the combustion chamber, somewhat like a feed back. It does prevent pollution accdg to Auto Repair For Dummies. The breather is different, it comes from the cover and in to the intake barrel of the carb bypassing the air filter.

newsavedone · 08-07-2008, 05:41 AM

What is an oil catch can, and why would I want to make one and install it on a scrum even if I could get to where it should be located?

I was taught to try and improve a design to make it more efficent, not to see how strange, and far from the normal operation I could get it to keep working.
Strange modifications I have seen around Cebu;

1. Bamboo stick to tell how much gas you have left.
2. Better yet, a plastic 1 gallon juge for a fuel tank IN the drivers cab of jeepnys.
3.16 brake light fixtures, but only 1 connected.
4. Running at night with lights turned off to save fuel.
5. Welding springs so they cant sage and bounce when they leave the shock strut off.
6 BIG FASTEN SEAT BELT SIGN on dash, but all belts have been jammed so they dont work.
7. Rodding the radiator yearly instead of using anti rust coolent.

Do you see where experimenting leads unless well thought out?

OMD · 08-08-2008, 02:55 PM

Quote:

Originally Posted by newsavedone

The PVC stands for Positive Crankcase Ventilator. Its hose is connected to the air filter housing so the air intake provides suction to ventilate the crankcase so corrosive fumes and moisture dont stay in the engine. It also sucks the polution causing fumes into the air intake and burns them so they dont pulute the air. If you disconnect the hose, no suction is present, and fumes build up in engine crankcase, causing rapid deteration of engine oil due to gas that seeps past the pistion rings into the crankcase, and delutes the oil so in about a month, instead of having a 10W 40 oil, you have a 10W 25 oil, so less luberacant for engine, more weare!!!! PLUS YOU ARE NOW THE FILTER for the polution!!!!!!!!!!

im' sorry but I have to object, venting the PCV to the atmosphere does NOT build up fumes and does NOT deteriorate your oil, it just does not burn the unburnt fuel mixture..

newsavedone · 08-10-2008, 08:51 AM

Greetings, if you do not connect the PCV hose to the intake manafold in some way, Then HOW will the fumes in the engine get out????
The engine CAN NOT force the fumes OUT!!!
They must be SUCKED out by the vacume of the intake.
I am american, so what my words mean to me may not be what your words mean to you! We may be talking about the same thing, but because of Language diffrences, we dont agree. I keeep trying, hope you do too, Love Roger