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Oil Line Help Needed
I've been trying to find the oil leak that is causing oil to drip onto the front portion of my passenger (right, starboard) exhaust pipe. The top of the engine is dry, so I assumed it is the oil cooler or oil cooler seals.
In trying to get in to the oil cooler today, I saw I had to remove a bracket holding a line coming down just in front of the oil cooler, next to the engine. As I removed the bracket, the end of the line came out of the fitting it was in, and I saw that on the end of the line was something like a rubber nipple. When I squeezed the nipple, oil started to drip out, quite similar to my oil leak, and in the exact correct spot over my exhaust pipe. It seems, the fitting that this nipple fits into, is a redirect line to behind the shock absorber. It appears that this is intended to redirect oil dripping from this line to drip away from the exhaust to behind the shock. I have not seen anything like this on the Pelican Parts diagrams or parts listings, but then again I'm still a newbie and learning as I go. Where does this line originate? Is it some sort of "overflow" line? I'm certain that responses will either clear up all the subsequent questions I have, or prompt other questions.
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_________________ Dave Miller 1977 911 Targa 2.7 |
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03-02-2008, 06:28 AM
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Join Date: May 2000
Location: Los Alamos, NM, USA
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The duckbill nozzle or nipple (designed to keep water out) attaches to the bottom of a small plastic, tube-shaped chamber which has a line to the bottom of the air box. If you're finding oil dripping from the nozzle, this means there is oil in the bottom of the air box. Pull the air filter cover and look under the filter element. Oil in the bottom of the air box is symptomatic of over filling the oil tank. The oil level should be halfway up the dipstick with the engine/oil at operating temperature - check while the engine is running and with the car on level ground.
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03-02-2008, 07:22 AM
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I have always been careful to never overfill, and have been running recently around the MIN level on the dipstick. Dipstick readings concur with the dash gauge.
Any other way oil could be getting into my airbox, and how I can fix the redirector covering the duckbill to ensure the flow of oil goes away from the exhaust?
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_________________ Dave Miller 1977 911 Targa 2.7 |
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03-02-2008, 07:29 AM
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I just pulled the air filter, and there is some oil in the airbox. A small spot on the filter itself indicates it is originating from the hose connected to the oil fill pipe. For validation, can I pull this hose and plug it?
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_________________ Dave Miller 1977 911 Targa 2.7 |
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03-02-2008, 07:39 AM
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Loose nut bhind the wheel
Join Date: Dec 2005
Location: Durham, NC
Posts: 262
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Quote:
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Ed 1970 911S Targa 2.7RS MFI dual plug 10.5:1 1974 260Z SCCA ITS 1998 M3 |
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03-02-2008, 07:39 AM
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Join Date: May 2000
Location: Los Alamos, NM, USA
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"Any other way oil could be getting into my airbox"
When the oil is hot (and therefore expanded and at a higher level in the tank), tight radius, high speed turns to the right can "throw" oil into the airbox. My '76 2.7 does this if the oil level is too high. You are checking the oil level with the engine warm and running at idle speed? |
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03-02-2008, 12:30 PM
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1977 Porsche 911S Targa 2.7
