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precautionary landing mystery

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jonboede(at)hotmail.com
Guest

Posted: Sun Mar 24, 2013 5:17 pm Post subject: precautionary landing mystery

So I'm flying along 30 minutes into a flight on a nice sunny day (about 15C outside, altitude about 3,000') and I notice...



1. My oil inlet temperature is 40C

2. Now my inlet oil temp is 30C

3. My oil pressure isn't 5.5-6 anymore, it's about 5

4. And then my inlet oil temp is 20C and my oil pressure is about 4.5, outlet temp is 55C

5. My port wing is sloppy wet, although my starboard wing is "normal" (i.e. needs to a good bath like usual but not much more than that)



I'm talking to Waco Approach since I'm transiting their Class D and it occurs to me that since their perfectly good airport is about 3 miles away, I might avoid getting the "idiot of the month" award if I make a precautionary landing instead of flying another half hour to my destination.



That all goes well and at the FBO my first question is "How much oil do I have left?"



6. Oil level determination is not possible since the oil in the tank is super foamy

7. No oil on the windshield, not much on the prop

8. Port side gear is sloppy wet, starboard side is reasonably clean ... weird.



So I look it over really good and can't find an obvious broken anything, call a friend to rescue me and get a crew car and go to lunch.  I stop by Home Depot to get a bag of towels (because, radial).



9. Engine compartment is not soaked, although there's plenty of oil on the firewall but it doesn't look like any of the cylinders have lost their base gaskets.



45 minutes later I come back and take some pictures.  Oil level still determinate since it's full of pinhead sized foam bubbles.



10. Foamy oil bubbles up to the top of dipstick (see pic)



Arrange with FBO to put up plane in a hangar for the next couple of days that are supposed to be wet and windy, rescue ride arrives.  Depart.



Any guesses on this?  I'm thinking that its my oil pump, but not sure exactly what part (since I'm realizing that I don't know if the stock 285 hp engine's oil pump is two pumps or one)



Sigh,

Jon

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czech6(at)mesanetworks.ne
Guest

Posted: Sun Mar 24, 2013 6:39 pm Post subject: precautionary landing mystery

I love a mystery  novel. Can't wait for part two.

Good command decision on your part.



Bill



On Mar 24, 2013, at 8:14 PM, Jon Boede <jonboede(at)hotmail.com (jonboede(at)hotmail.com)> wrote:



[quote]   So I'm flying along 30 minutes into a flight on a nice sunny day (about 15C outside, altitude about 3,000') and I notice...



1. My oil inlet temperature is 40C

2. Now my inlet oil temp is 30C

3. My oil pressure isn't 5.5-6 anymore, it's about 5

4. And then my inlet oil temp is 20C and my oil pressure is about 4.5, outlet temp is 55C

5. My port wing is sloppy wet, although my starboard wing is "normal" (i.e. needs to a good bath like usual but not much more than that)



I'm talking to Waco Approach since I'm transiting their Class D and it occurs to me that since their perfectly good airport is about 3 miles away, I might avoid getting the "idiot of the month" award if I make a precautionary landing instead of flying another half hour to my destination.



That all goes well and at the FBO my first question is "How much oil do I have left?"



6. Oil level determination is not possible since the oil in the tank is super foamy

7. No oil on the windshield, not much on the prop

8. Port side gear is sloppy wet, starboard side is reasonably clean ... weird.



So I look it over really good and can't find an obvious broken anything, call a friend to rescue me and get a crew car and go to lunch.  I stop by Home Depot to get a bag of towels (because, radial).



9. Engine compartment is not soaked, although there's plenty of oil on the firewall but it doesn't look like any of the cylinders have lost their base gaskets.



45 minutes later I come back and take some pictures.  Oil level still determinate since it's full of pinhead sized foam bubbles.



10. Foamy oil bubbles up to the top of dipstick (see pic)



Arrange with FBO to put up plane in a hangar for the next couple of days that are supposed to be wet and windy, rescue ride arrives.  Depart.



Any guesses on this?  I'm thinking that its my oil pump, but not sure exactly what part (since I'm realizing that I don't know if the stock 285 hp engine's oil pump is two pumps or one)



Sigh,

Jon

 		 	   		  

 

<chang.png>

[b]

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viperdoc(at)mindspring.co
Guest

Posted: Sun Mar 24, 2013 8:26 pm Post subject: precautionary landing mystery

Since I'm a YAK guy probably best to shut up. Also being an AF sort of puke, this port and starboard lingo is as foreign as boats and ships as well brown or black shoes are to me.

Anyway, look at all of your oil lines first including fittings and safety wiring of those fittings. With tiny bubbles causing foaming in your oil tank you are in training air from somewhere. Ie, the pump was working. If all the oil was on your right wing look at your oil cooler and the hoses that go to it. 

I too will be awaiting the end of this novel. Remember your oil pump has two big hoses one for oil inflow from the tank and one for out flow to the cooler. It has a third smaller hose going to the pressure transducer if it is anything like the 52/50. 

Good choice on executing that Pilot in command decision. 

Doc



Sent from my iPad



On Mar 24, 2013, at 9:36 PM, Bill Geipel <czech6(at)mesanetworks.net (czech6(at)mesanetworks.net)> wrote:

[quote]

I love a mystery  novel. Can't wait for part two.

Good command decision on your part.



Bill



On Mar 24, 2013, at 8:14 PM, Jon Boede <jonboede(at)hotmail.com (jonboede(at)hotmail.com)> wrote:



 	  Quote: 	
		     So I'm flying along 30 minutes into a flight on a nice sunny day (about 15C outside, altitude about 3,000') and I notice...



1. My oil inlet temperature is 40C

2. Now my inlet oil temp is 30C

3. My oil pressure isn't 5.5-6 anymore, it's about 5

4. And then my inlet oil temp is 20C and my oil pressure is about 4.5, outlet temp is 55C

5. My port wing is sloppy wet, although my starboard wing is "normal" (i.e. needs to a good bath like usual but not much more than that)



I'm talking to Waco Approach since I'm transiting their Class D and it occurs to me that since their perfectly good airport is about 3 miles away, I might avoid getting the "idiot of the month" award if I make a precautionary landing instead of flying another half hour to my destination.



That all goes well and at the FBO my first question is "How much oil do I have left?"



6. Oil level determination is not possible since the oil in the tank is super foamy

7. No oil on the windshield, not much on the prop

8. Port side gear is sloppy wet, starboard side is reasonably clean ... weird.



So I look it over really good and can't find an obvious broken anything, call a friend to rescue me and get a crew car and go to lunch.  I stop by Home Depot to get a bag of towels (because, radial).



9. Engine compartment is not soaked, although there's plenty of oil on the firewall but it doesn't look like any of the cylinders have lost their base gaskets.



45 minutes later I come back and take some pictures.  Oil level still determinate since it's full of pinhead sized foam bubbles.



10. Foamy oil bubbles up to the top of dipstick (see pic)



Arrange with FBO to put up plane in a hangar for the next couple of days that are supposed to be wet and windy, rescue ride arrives.  Depart.



Any guesses on this?  I'm thinking that its my oil pump, but not sure exactly what part (since I'm realizing that I don't know if the stock 285 hp engine's oil pump is two pumps or one)



Sigh,

Jon

 		 	   		  

 

<chang.png>





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[b]

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pilotdog57(at)aol.com
Guest

Posted: Sun Mar 24, 2013 9:28 pm Post subject: precautionary landing mystery

I had something similar to this happen to me in my CJ when I had the 285. I too made a pre cautionary landing and discovered " foamy" oil.

The cause ended up being that my oil breather line rotated and was causing ram air to the case and making the oil pressure decrease from the ensuing foamy oil and a little extra oil out the exhaust than normal. 

Rotated the oil breather to avoid ram air and problem fixed!

Best, Doug Z



Sent from my iPad



On Mar 24, 2013, at 7:36 PM, Bill Geipel <czech6(at)mesanetworks.net (czech6(at)mesanetworks.net)> wrote:



[quote]

I love a mystery  novel. Can't wait for part two.

Good command decision on your part.



Bill



On Mar 24, 2013, at 8:14 PM, Jon Boede <jonboede(at)hotmail.com (jonboede(at)hotmail.com)> wrote:



 	  Quote: 	
		     So I'm flying along 30 minutes into a flight on a nice sunny day (about 15C outside, altitude about 3,000') and I notice...



1. My oil inlet temperature is 40C

2. Now my inlet oil temp is 30C

3. My oil pressure isn't 5.5-6 anymore, it's about 5

4. And then my inlet oil temp is 20C and my oil pressure is about 4.5, outlet temp is 55C

5. My port wing is sloppy wet, although my starboard wing is "normal" (i.e. needs to a good bath like usual but not much more than that)



I'm talking to Waco Approach since I'm transiting their Class D and it occurs to me that since their perfectly good airport is about 3 miles away, I might avoid getting the "idiot of the month" award if I make a precautionary landing instead of flying another half hour to my destination.



That all goes well and at the FBO my first question is "How much oil do I have left?"



6. Oil level determination is not possible since the oil in the tank is super foamy

7. No oil on the windshield, not much on the prop

8. Port side gear is sloppy wet, starboard side is reasonably clean ... weird.



So I look it over really good and can't find an obvious broken anything, call a friend to rescue me and get a crew car and go to lunch.  I stop by Home Depot to get a bag of towels (because, radial).



9. Engine compartment is not soaked, although there's plenty of oil on the firewall but it doesn't look like any of the cylinders have lost their base gaskets.



45 minutes later I come back and take some pictures.  Oil level still determinate since it's full of pinhead sized foam bubbles.



10. Foamy oil bubbles up to the top of dipstick (see pic)



Arrange with FBO to put up plane in a hangar for the next couple of days that are supposed to be wet and windy, rescue ride arrives.  Depart.



Any guesses on this?  I'm thinking that its my oil pump, but not sure exactly what part (since I'm realizing that I don't know if the stock 285 hp engine's oil pump is two pumps or one)



Sigh,

Jon

 		 	   		  

 

<chang.png>





===================================

//www.matronics.com/Navigator?Yak-List

===================================

cs.com

===================================

matronics.com/contribution

===================================



	


[b]

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Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

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wlannon(at)shaw.ca
Guest

Posted: Mon Mar 25, 2013 8:50 am Post subject: precautionary landing mystery

Jon;

  

 Foamy oil is excess air being sucked in somewhere.   More than  likely a leaking oil-in gasket, hose or fitting.

  

 Walt

    

  From: Jon Boede (jonboede(at)hotmail.com) 

 Sent: Sunday, March 24, 2013 6:14 PM

 To: yak-list(at)matronics.com (yak-list(at)matronics.com) 

 Subject: precautionary landing mystery

  



  So I'm flying along 30 minutes into a flight on a nice sunny day  (about 15C outside, altitude about 3,000') and I notice...



1. My oil  inlet temperature is 40C

2. Now my inlet oil temp is 30C

3. My oil  pressure isn't 5.5-6 anymore, it's about 5

4. And then my inlet oil temp is  20C and my oil pressure is about 4.5, outlet temp is 55C

5. My port wing is  sloppy wet, although my starboard wing is "normal" (i.e. needs to a good bath  like usual but not much more than that)



I'm talking to Waco Approach  since I'm transiting their Class D and it occurs to me that since their  perfectly good airport is about 3 miles away, I might avoid getting the "idiot  of the month" award if I make a precautionary landing instead of flying another  half hour to my destination.



That all goes well and at the FBO my first  question is "How much oil do I have left?"



6. Oil level determination is  not possible since the oil in the tank is super foamy

7. No oil on the  windshield, not much on the prop

8. Port side gear is sloppy wet, starboard  side is reasonably clean ... weird.



So I look it over really good and  can't find an obvious broken anything, call a friend to rescue me and get a crew  car and go to lunch.  I stop by Home Depot to get a bag of towels (because,  radial).



9. Engine compartment is not soaked, although there's plenty of  oil on the firewall but it doesn't look like any of the cylinders have lost  their base gaskets.



45 minutes later I come back and take some  pictures.  Oil level still determinate since it's full of pinhead sized  foam bubbles.



10. Foamy oil bubbles up to the top of dipstick (see  pic)



Arrange with FBO to put up plane in a hangar for the next couple of  days that are supposed to be wet and windy, rescue ride arrives.   Depart.



Any guesses on this?  I'm thinking that its my oil pump, but  not sure exactly what part (since I'm realizing that I don't know if the stock  285 hp engine's oil pump is two pumps or  one)



Sigh,

Jon

   [quote][b]

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czech6(at)mesanetworks.ne
Guest

Posted: Mon Mar 25, 2013 3:27 pm Post subject: precautionary landing mystery

I had an oil line that was so old it just became saturated with oil, like a sponge. It had a protective cover over it. When squeezed you could feel it. Never saw oil coming from it but is pooling at one end and blowing everywhere

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