REFLECTOR: Oil Consumption

[Ron Brown]

That's interesting information!

My Don George rebuilt IO360-C1C angle valve engine has been using about 1 
quart in 4-5 hours ever since initial start up.  I felt I had done too much 
taxi testing.  I too checked my crankcase pressure, it was within the 
Lycoming limits and my compressions are 78/80.  Changing the operating oil 
levels didn't seem to help either. I called Don and he said this consumption 
was not out of line and not worth worrying about.

I built and installed an oil/air separator which didn't  seem to help much 
other than it was returning some clean oil to the engine.  (I checked what 
was coming out of the separator and it was not milky and no water was 
present).

Now that I hear that this is normal for Lycoming Angle Valve engines, I'll 
go worry about something else!

Ronnie

----- Original Message ----- 
From: "steve korney" <s_korney at hotmail.com>
To: <reflector at tvbf.org>
Sent: Monday, May 14, 2007 2:05 PM
Subject: Re: REFLECTOR: One or Two oil coolers?


>
> Tec...
>
> I don't think the oil squirter nozzles cause more oil consumption... 
> Almost
> all Lycoming angle valve engines have them... I get about 6 hours per 
> quart
> of oil if I keep the rpm's down below 2500... Over that rpm, the 
> consumption
> goes up slightly...  I start with 8 quarts... Add one when it drops to 6
> quarts, back to 7... Add another when it drops back to 6, back to 7... add
> another when it drops to 6, back to 7...Then I change oil at 25 hours...
> Start all over again... At 50 hours, I change fillter and add 9 quarts...
> One extra for the filter...
>
>
> Best... Steve
>
>
>
>
> ----Original Message Follows----
> From: HYTEC45 at aol.com
> Reply-To: Velocity Aircraft Owners and Builders list <reflector at tvbf.org>
> To: reflector at tvbf.org
> Subject: Re: REFLECTOR: One or Two oil coolers?
> Date: Mon, 14 May 2007 13:12:42 EDT
>
>
> In a message dated 5/14/2007 8:31:55 A.M. Pacific Standard Time,
> s_korney at hotmail.com writes:
>
> I put  those oil squirter nozzles on my parallel valve lycoming engine and
> the  oil temp went up about 15 degrees F in cruise. Ended up putting a 6
> cylinder oil cooler on the four cylinder system to take care of the higher
> oil temps...The nozzles open at about 40 lbs. of oil pressure so you don't
> loose any pressure at idle... I have adjustable oil pressure and it is set
> to 83 psi. @ 185 F. and 78 psi. @ 210 F.  At start up in the morning  it's
> 120 psi. @ 60F and 1000 rpm's.  I let it warm to 90 F. before I  do a 
> run-up
>
>
>
>
> Steve,
>
> Do you think the nozzles also increase oil consumption?  I have been
> fighting high(er) consumption (1qt. in 2.5hrs) since day one (800hrs.).  I
> have even
> gone so far as two hone and re-ring jobs, and finally had Don  @ 
> Performance
> Engine put together a new set of nitrited cylinders  w/ chrome rings.  All
> resulted in the same consumption results  exactly.  I can only point to 
> the
> nozzles spraying oil directly onto the  piston/oil control rings.  Of 
> course
> I have
> used correct break-in  procedures, and went the hole breather/crank case
> pressure thing and no  leaks.  Plugs and pipes look like ash.
>
> What kind of oil consumption are other V's /pushers seeing?
> TEC
>
>
>
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