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IO-540 crankcase breather

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carl.froehlich(at)verizon
Guest

Posted: Sat Jun 30, 2012 2:30 pm Post subject: IO-540 crankcase breather

All,

 

I was going to use the same crankcase breather oil separator that I have on the 8A http://www.aircraftspruce.com/catalog/eppages/hboilbreather.php

but then I noted the IO-540 has a huge crankcase breather fitting for a 1” inside diameter hose.  The above separator uses 5/8” hose.

 

This separator works well on the IO-360 in the 8A.  Is anyone using this on a IO-540?  Does the IO-540 really need a 1” breather hose?

 

Carl

   [quote][b]

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tim2542(at)sbcglobal.net
Guest

Posted: Sat Jun 30, 2012 3:53 pm Post subject: IO-540 crankcase breather

Dunno about the ACS separator, I just installed a Anti splat aero .com separator on my IO360 and I'm pretty happy with it. Seems to be catching all the oil. They make one for the 540, and I think unlike most of the vendors, have actually done some R&D and dyno testing on the product alsohave a video on the development of it that's interesting.

No interest in the the product, just a happy customer.

Tim 

Sent from my iPad



On Jun 30, 2012, at 3:27 PM, "Carl Froehlich" <carl.froehlich(at)verizon.net (carl.froehlich(at)verizon.net)> wrote:



[quote]  <![endif]-->   <![endif]-->

All,

 

I was going to use the same crankcase breather oil separator that I have on the 8A http://www.aircraftspruce.com/catalog/eppages/hboilbreather.php

but then I noted the IO-540 has a huge crankcase breather fitting for a 1” inside diameter hose.  The above separator uses 5/8” hose.

 

This separator works well on the IO-360 in the 8A.  Is anyone using this on a IO-540?  Does the IO-540 really need a 1” breather hose?

 

Carl

    	  Quote: 	
		  



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cs.com

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matronics.com/contribution

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[b]

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pfstelwagon(at)earthlink.
Guest

Posted: Sat Jun 30, 2012 8:54 pm Post subject: IO-540 crankcase breather

There are a lot of people who do not believe in the Air-Oil  Separators.  They condense the water vapor in the vent line as well as the  oil vapor, both are then returned to the crankcase.  The water is not  good, when mixed with the combustion products it leads to acid formation,  not good for the engine.  On the other hand they do keep the belly  clean!

  

 Frank

   [quote][b]

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tim2542(at)sbcglobal.net
Guest

Posted: Sat Jun 30, 2012 10:08 pm Post subject: IO-540 crankcase breather

Hi Frank

Not to hijack the thread, well I guess we are! 

 I gave this a lot of thought and discussed it with a couple of A&Ps. One of them showed me two Bonanzas right there in the shop that return the oil.

Even bounced it off Mahlon here but I guess he missed it.

I think any water that collects and is returned will be boiled off and given another shot at getting out as vapor assuming the oil temps are reasonably high. The oil sees temps well above what is read on the gauge in normal ops and the water should boil off and vent. Some may get returned by the separator but the cycle continues over and over. I put mine in a good warm area hoping to reduce condensation.

I also took an oil sample at last change and installed the separator. I plan to have it tested again next time and see if there is any change in the acids or h2o.

Just my thoughts on it, and what I'm doing. I'd like to hear other opinions on this.

BTW I often saw water droplets on my dipstick when cold even before I installed the separator, and my oil runs right around 180-190. So far I have not noticed any increase or change in the moisture and my consumption is now almost nill. I'm still testing, but over 12 hours now and almost 1/2 qt. low. Before I was losing a qt. in 8-10 hours on a fresh overhaul, so I know now it's kicking it out the vent and not burning it. I really think its just a poorly designed vent system and if done right we would not need to add oil all the time or install separators. 

Thoughts?

Tim

Sent from my iPad



On Jun 30, 2012, at 9:50 PM, "Frank Stelwagon" <pfstelwagon(at)earthlink.net (pfstelwagon(at)earthlink.net)> wrote:



[quote]       There are a lot of people who do not believe in the Air-Oil  Separators.  They condense the water vapor in the vent line as well as the  oil vapor, both are then returned to the crankcase.  The water is not  good, when mixed with the combustion products it leads to acid formation,  not good for the engine.  On the other hand they do keep the belly  clean!

  

 Frank

    	  Quote: 	
		  



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

-List">http://www.matronics.com/Navigator?LycomingEngines-List

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

cs.com

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

matronics.com/contribution

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



	
   

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carl.froehlich(at)verizon
Guest

Posted: Sun Jul 01, 2012 6:33 am Post subject: IO-540 crankcase breather

This company’s product came recommended on the Lycoming list and is discussed on VAF:  http://antisplataero.com/

I have an email into them on price for the IO-540 version.

 

One point to clarify; as I did on the 8A the oil from the separator will be collected in a small can (~6oz), not returned to the engine.  On the 8A, I empty the can every oil change and never had more than a couple of ounces in it – but a couple of ounces less on the belly.

 

Carl

 

From: owner-rv10-list-server(at)matronics.com [mailto:owner-rv10-list-server(at)matronics.com] On Behalf Of Rob Kermanj

Sent: Sunday, July 01, 2012 10:06 AM

To: rv10-list(at)matronics.com

Subject: Re: IO-540 crankcase breather

 

Mine really does not leak without a separator. My overflow tube is right above the exhaust pipe.  



 



Also, there are debates regarding putting the oil byproducts in the breather back into the engine. 



 



Do not archive. 

Rob Kermanj 



Sent from my iPad

On Jun 30, 2012, at 5:18 PM, "Carl Froehlich" <carl.froehlich(at)verizon.net (carl.froehlich(at)verizon.net)> wrote:

 	  Quote: 	
		  

All,

 

I was going to use the same crankcase breather oil separator that I have on the 8A http://www.aircraftspruce.com/catalog/eppages/hboilbreather.php

but then I noted the IO-540 has a huge crankcase breather fitting for a 1” inside diameter hose.  The above separator uses 5/8” hose.

 

This separator works well on the IO-360 in the 8A.  Is anyone using this on a IO-540?  Does the IO-540 really need a 1” breather hose?

 

Carl 	  Quote: 	
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