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pre-oiler

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pnicholson

Joined: 04 Jun 2011
Posts: 46

Posted: Wed Nov 02, 2011 11:01 am Post subject: pre-oiler

Guys,

While recently discussing my intent to fly through the Canadian winter

(cue Mark's joke here ) I was advised the best investment I could

make was a pre-oiler.

I have laready contacted the usual CJ/Yak parts pers with no luck.

Could someone, on or off list, please let me know where they purchased

a pre-oiler suitable for a Housai 285?



Thanks,

Phil Nicholson

C-FEPN

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rijaeger(at)wausau.k12.wi
Guest

Posted: Wed Nov 02, 2011 11:58 am Post subject: pre-oiler

On this note...for those of you who are engineering types...I have a few NOS oil dilution solenoids that the RCAF used at one time on their aircraft. I'm sure there's something all ready to go out there, but if not - these are available.

  

 



 	  Quote: 	
		  >> Philip Nicholson <pednicholson(at)gmail.com> 11/2/2011 1:57 PM >>>

--> Yak-List message posted by: Philip Nicholson <pednicholson(at)gmail.com>
	




Guys,

While recently discussing my intent to fly through the Canadian winter

(cue Mark's joke here ) I was advised the best investment I could

make was a pre-oiler.

I have laready contacted the usual CJ/Yak parts pers with no luck.

Could someone, on or off list, please let me know where they purchased

a pre-oiler suitable for a Housai 285?



Thanks,

://www.matronics.com/contribution">http://www.matronics.com/contributionhttp://www.matronics.com/Navigator?Yak-List

           - MATRONICS p;                       -Matt Dralle, ======





  [quote][b]

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wlannon(at)shaw.ca
Guest

Posted: Thu Nov 03, 2011 8:46 am Post subject: pre-oiler

Brian;

  

 Did you do that just so I would bore everyone to  tears??

  

 To start with I absolutely agree that oil dilition  is EVIL and I remove every part of it with every restoration I do whether  Harvard/T6 or CJ.

  

 But, There was a time:

  

 My first boss in the Canadian aviation business  (about 1950) was a gentleman by the name of Tommy Siers.

 In 1940 he won the McKee trophy, the most  prestigious trophy in our industry at the time, for the development of aircraft  engine oil dilution.

  

 He did not "invent" oil dilution.  That was  probably an unknown truck driver.  About 1928 Tommy was an aircraft  mechanic in the frozen north who noted that the truckers poured gas into their  engine oil each night so they could start in the morning.

 He developed the systems and procedures to make it  a useful tool.  It was quickly picked up by the industry  and the US military for cold weather  operations and was in virtually every military  aircraft in WW2.

  

 In those times winter flight operations in the far  North were nothing short of brutal for both pilots and mechanics.  This was  long before the days of multi-grade oils or heated hangars. The Herman  Nelson gas fired heater was also born in this period and helped  immensely but oil dilution made flight operations possible in conditions  that were otherwise impossible.

  

 The EVIL part of course showed up in due time in  the form of sludge and mis-use of the system.  Not just ordinary oil sludge  but heavy, lead containing, sludge that built up to the point of stopping  propellor operation,  plugging vital oil passages and causing susequent  failures.

 With the advent of 100/130 and 115/145 high lead  fuels the sludge problem got far worse.  

 I recall scaping 3/4" thick sludge from the inside  of propellor domes that had the consistency of lead.

  

 There were also occasional mistakes in the dilution  process that resulted in reduced lubrication for the engine.

  

 Today, we have multi-grade oils, heated hangars,  engine heat pads and absolutely no need to go flying in below zero  weather.

 Oil dilution was, for a time, a necessary  evil.  Today it is history.

  

 Walt 

  

  

  

  

  

  

  

  

  

  

  

  

 [quote]   ---

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brian(at)lloyd.com
Guest

Posted: Thu Nov 03, 2011 12:10 pm Post subject: pre-oiler

On Thu, Nov 3, 2011 at 9:44 AM, Walter Lannon <wlannon(at)shaw.ca (wlannon(at)shaw.ca)> wrote:

 	  Quote: 	
		          Brian;

  

 Did you do that just so I would bore everyone to  tears??



	




But of course!

 

 	  Quote: 	
		    

 To start with I absolutely agree that oil dilition  is EVIL and I remove every part of it with every restoration I do whether  Harvard/T6 or CJ.



	




Great minds think alike. 

 

 	  Quote: 	
		     

 But, There was a time:

  

 My first boss in the Canadian aviation business  (about 1950) was a gentleman by the name of Tommy Siers.

 In 1940 he won the McKee trophy, the most  prestigious trophy in our industry at the time, for the development of aircraft  engine oil dilution.

  

 He did not "invent" oil dilution.  That was  probably an unknown truck driver.  About 1928 Tommy was an aircraft  mechanic in the frozen north who noted that the truckers poured gas into their  engine oil each night so they could start in the morning.

 He developed the systems and procedures to make it  a useful tool.  It was quickly picked up by the industry  and the US military for cold weather  operations and was in virtually every military  aircraft in WW2.



	




And it makes sense when using heavy, straight-weight oils without preheating.

 

 	  Quote: 	
		     

 In those times winter flight operations in the far  North were nothing short of brutal for both pilots and mechanics.  This was  long before the days of multi-grade oils or heated hangars. The Herman  Nelson gas fired heater was also born in this period and helped  immensely but oil dilution made flight operations possible in conditions  that were otherwise impossible.



	




I agree. Fortunately WE DO NOT LIVE IN CONDITIONS WHERE OIL DILUTION IS EVER AGAIN ADVISABLE.

 

 	  Quote: 	
		     

 The EVIL part of course showed up in due time in  the form of sludge and mis-use of the system.  Not just ordinary oil sludge  but heavy, lead containing, sludge that built up to the point of stopping  propellor operation,  plugging vital oil passages and causing susequent  failures.



	




Yup! Lovely stuff that.

 

 	  Quote: 	
		    With the advent of 100/130 and 115/145 high lead  fuels the sludge problem got far worse.  

 I recall scaping 3/4" thick sludge from the inside  of propellor domes that had the consistency of lead.



	




  It was like a cross between butter and mud. And heavy as hell. 

 	  Quote: 	
		    There were also occasional mistakes in the dilution  process that resulted in reduced lubrication for the engine.



	




Yeah like pilots spending 60 seconds discussing whether to dilute for 10 seconds or 20 seconds, all the while forgetting that the dilution system was still pumping gasoline into the oil. 

 



 	  Quote: 	
		    

 Today, we have multi-grade oils, heated hangars,  engine heat pads and absolutely no need to go flying in below zero  weather.



	




I like flying in below-zero weather! But you have to be prepared.

 

 	  Quote: 	
		    Oil dilution was, for a time, a necessary  evil.  Today it is history.



	




Right on baby!



-- 

Brian Lloyd, WB6RQN/J79BPL

3191 Western Dr.

Cameron Park, CA 95682

brian(at)lloyd.com (brian(at)lloyd.com)

 +1.767.617.1365 (Dominica)

+1.916.877.5067 (USA)



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