It part of the engine crankcase venting system. blow-by from running the engine enters the crankcase from the rings and is sent out that fitting, thru a hose to the carb flame arrestor, and eventually the vapor is sucked into the carb and re-burned.
Apparently my problem didn't post. I noticed a small amount of oil under the engine a few weeks ago. Long story short I figured out later on the oil was coming from there. I've always had some oil steadily on the valve cover but it's so much now that it's running down the engine and pooling. Oil level is perfect. Hasn't really used any. I've out 40 hours in the boat this summer and added a half quart. Thanks for any help.
What condition is the rubber bushing between the PCV valve and the valve cover? The bushing plugs into the valve cover then the PCV valve plugs into the bushing. If the bushing is leaking that would cause a little oil to drip out. Pematex will help. If the PCV valve is jamming up it can cause it to leak. New PCV valve new rubber bushing plus permatex = no more leak.
That's not a PCV valve. It's just a metal elbow There is no vacuum on it to suck vapours. It's not uncommon for then to weep a little oil. The vapours condense inside the corrugated tubing and eventually leak down and flow out of the tube.
Yea I posted a pic of it on the first post. I new to this forum so I'm trying to figure it out. I also had a nice large detailed paragraph that didn't post. But today I pulled the grommet out and its in good shape. The hose and 90 degree elbow are all in good condition. Applied Permatex around where the grommet meets the valve cover which is where the oil is blowing out of. Hopefully this helps. I will find out this weekend.
Yea I posted a pic of it on the first post. I new to this forum so I'm trying to figure it out. I also had a nice large detailed paragraph that didn't post. But today I pulled the grommet out and its in good shape. The hose and 90 degree elbow are all in good condition. Applied Permatex around where the grommet meets the valve cover which is where the oil is blowing out of. Hopefully this helps. I will find out this weekend.
Yes it has a plastic hose that attaches to the air filter but the oil comes from the valve cover where the grommet goes in. I have plenty of pics but this site says either the fils is too big or invalid file. Just pics I took from my phone.
Doesn't work for me.
