Proper engine venting
May 2nd, 2011, 06:54 PM
#1
Navy P-3 FE (Ret.)
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Join Date: Dec 2009
Location: Great Mills, MD
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Proper engine venting
Not sure if my engine is vented properly. I have a breather in each valve cover, no PCV. Now those breathers in the picture are oil soaked now and at times the "top hat" oil filler tube cap will be wet with oil. The breather on the passenger side collects the most oil. There are no baffles in the valve covers so I guess a PCV can't be installed. I wouldn't be able to hook into the carb base anyway. Does this setup look correct? Thanks.
May 3rd, 2011, 07:38 AM
#3
InfoJunkie
Join Date: Oct 2010
Location: Belleville ON Canada
Posts: 287
Put a PCV valve in which ever valve cover makes it easier to hook it to the PCV tube on one of the carbs. Get 1 PCV and 1 breather valve cover grommets with baffles. That should cure the oiling problem. Moroso makes the grommets.
.......BREATHER............ PCV.......
.......BREATHER............ PCV.......
Last edited by InfoJunkie; May 3rd, 2011 at 07:44 AM.
May 3rd, 2011, 11:54 AM
#5
Navy P-3 FE (Ret.)
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Join Date: Dec 2009
Location: Great Mills, MD
Posts: 759
Thanks guys, seems like I need a PCV one way or the other. I guess it acts like a vacuum. Maybe this will cure my oil leak at the oil pan seals. Too much pressure build up in the crankcase. I have a hookup on the rear carb but there is no space to connect the hose. I do have the spot on the intake where the power brake would draw from. I take it I can connect the PCV there? Thanks.
Okay I found a plug on the back of the rear carb, I put a fitting in it and will connect the PCV line there.
Okay I found a plug on the back of the rear carb, I put a fitting in it and will connect the PCV line there.
Last edited by 67Olds442X2; May 3rd, 2011 at 05:56 PM. Reason: Added info
May 3rd, 2011, 07:45 PM
#7
Registered User
Join Date: Oct 2009
Location: Erie,PA
Posts: 3,814
Don't think of it as ventilation. Think of it as circulation. A complete connected path for air to flow & release pressure. Think of it like you are sitting in you house with the windows shut. You open one window,and you do let air in,but you won't feel much,if anything. Now you open another window at the other end of the room,and now the air flows through the room,in a direction or path,and you can feel it.
May 22nd, 2011, 04:14 PM
#8
Navy P-3 FE (Ret.)
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Join Date: Dec 2009
Location: Great Mills, MD
Posts: 759
Well I put the PCV in and attached to the rear of my rear carb. My covers don't have baffles and I'm burning oil now. Is there a type of baffle for the old M/T covers? The baffle grommets Moroso sells are round, my covers have the stock style opening, "D" shape. Anyone have a similar setup?
May 22nd, 2011, 05:28 PM
#9
Navy P-3 FE (Ret.)
Thread Starter
Join Date: Dec 2009
Location: Great Mills, MD
Posts: 759
Put a PCV valve in which ever valve cover makes it easier to hook it to the PCV tube on one of the carbs. Get 1 PCV and 1 breather valve cover grommets with baffles. That should cure the oiling problem. Moroso makes the grommets.
.......BREATHER............ PCV.......
.......BREATHER............ PCV.......
Got them, course they're not going to work. The stock grommets can't be modified. Can't put a round grommet in a non round hole.
Last edited by 67Olds442X2; May 25th, 2011 at 08:07 PM.
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