Continental IO-520 acceptable oil consumption

swisspilot

swisspilot

Well-Known Member
Just a quick question, what`s an acceptable oil consumption for a IO-520 of a Cessna 206, I don`t top up the oil so I really have no clue, but I have been asked...

My guess would be around 1 Qt every 6 hours

Can`t find anything under section 7 of the POH
 
swisspilot said:
Just a quick question, what`s an acceptable oil consumption for a IO-520 of a Cessna 206, I don`t top up the oil so I really have no clue, but I have been asked...

My guess would be around 1 Qt every 6 hours

Can`t find anything under section 7 of the POH
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The thing will hover around 9 and 10 quarts, if you try to put more in than that it'll just blow it out the breather.

That said, about 1qt per 6 hours seems to match my recollections.
 
ppragman said:
The thing will hover around 9 and 10 quarts, if you try to put more in than that it'll just blow it out the breather.

That said, about 1qt per 6 hours seems to match my recollections.
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Thanks Pat

I always wondered why the 520 on the 210s uses different level of oil
 
We put 12 quarts in all out 520's and 550's. They don't blow overboard and if you're having to put more than a few quarts in every few days something taint right-in my opinion.
Our fleet does around 28 legs a day or more, each leg is 8-20 minutes.
 
1 qt every 6 hours is really good

I think the formula is .006lbs per hour per horsepower. So a 300 horsepower engine could burn nearly 2 quarts per hour and be okay per the manufacturer.

Personally when it got near 1qt per hour I'd start looking critically at it.
 
BajtheJino said:
We put 12 quarts in all out 520's and 550's. They don't blow overboard and if you're having to put more than a few quarts in every few days something taint right-in my opinion.
Our fleet does around 28 legs a day or more, each leg is 8-20 minutes.
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What sort of flying you do?

I remember when flying the 206H if you would put anything above 9 it would piss all out on the first leg.
 
We service villages in Alaska and do lots of off airport work. Lots of heavy climb outs and maybe 3-5 minute turn arounds.
Also never, never, never ever use ECI cylinders.
Oh btw, we're running 206's and a 207.
 
BajtheJino said:
We service villages in Alaska and do lots of off airport work. Lots of heavy climb outs and maybe 3-5 minute turn arounds.
Also never, never, never ever use ECI cylinders.
Oh btw, we're running 206's and a 207.
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Sounds like what I do just it`s 95F + here

miss flying the 207.
 
BajtheJino said:
We put 12 quarts in all out 520's and 550's. They don't blow overboard and if you're having to put more than a few quarts in every few days something taint right-in my opinion.
Our fleet does around 28 legs a day or more, each leg is 8-20 minutes.
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See, I have about 1500hrs behind IO-520Fs, and every one I ever flew would dump oil overboard if you filled it up much past around 9 or 10. At 9 or 10 it'd sit and not move for days. Maybe yours are different, I dunno, this is just what I remember.
 
ppragman said:
See, I have about 1500hrs behind IO-520Fs, and every one I ever flew would dump oil overboard if you filled it up much past around 9 or 10. At 9 or 10 it'd sit and not move for days. Maybe yours are different, I dunno, this is just what I remember.
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Maybe their planes are so busy that the engine always stays warm, so it may show 12 Qts but when cold it`s 9-10 :D

I actually never visibly saw signs of oil dumped overboard in the 206G when operating it at 9 Qts (belly would stay pretty clean too), I liked that engine vs the Lycoming of the 206H, where no matter how much oil you would put it would, over time piss all over the belly and the cargo pod, thanks to a such well designed AEROCET pod oil would even get into the cargo.

Our 206 would never do more then 2.5 hour trips before being back to base, where the mechanic would take care of it, on the 206G I think I never had to add oil myself
 
swisspilot said:
Maybe their planes are so busy that the engine always stays warm, so it may show 12 Qts but when cold it`s 9-10 :D

I actually never visibly saw signs of oil dumped overboard in the 206G when operating it at 9 Qts (belly would stay pretty clean too), I liked that engine vs the Lycoming of the 206H, where no matter how much oil you would put it would, over time piss all over the belly and the cargo pod, thanks to a such well designed AEROCET pod oil would even get into the cargo.

Our 206 would never do more then 2.5 hour trips before being back to base, where the mechanic would take care of it, on the 206G I think I never had to add oil myself
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BajtheJino said:
We service villages in Alaska and do lots of off airport work. Lots of heavy climb outs and maybe 3-5 minute turn arounds.
Also never, never, never ever use ECI cylinders.
Oh btw, we're running 206's and a 207.
Click to expand...

Hey Baj, do you guys have the Airwolf Air-Oil Separator?
 
ppragman said:
Hey Baj, do you guys have the Airwolf Air-Oil Separator?
Click to expand...
I don't know. I'll find out.

Back when I was flying 210's for FEX we would run (its been a long, long time ago...) as I seem to recall, X amount below max. At my current place of employment our previous DOM ran X amount below 12. New DOM comes in and the first thing he does is top off the oil and keep it that way-by whatever voodoo that wrench turners perform we might put in a can every 2 days or so. I know not the why or how. I'm just CP. I do what I'm told!
Side note: Engines run cooler and is less "dark" at changes, which we do every 25 hrs. aka 3 days or so?
 
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