Normal Operating Ranges O-360?

[Rick_A]

The manual that came with my engine doesn't have much info regarding correct operating ranges. My engine monitor (MVP-50) let's me set yellow, green and red ranges for just about everything but I don't know the correct values to use.

So far I've been able to find:
Oil Temp: Desired 180, Max 245 , Min 140 for continuous ops.

CHT: Max 435 for high power cruise & 400 for economy cruise. During break-in, 400 max.

Fuel Press: Max 8, desired 3, min 0.5
Fuel Flow - Range from 5.8 to 14.8

Does anyone have suggestions on Ranges setting (yellow, green, red) for: Fuel Flow, Fuel Press, Oil Press,Oil Temp,EGT, CHT.

Thanks.

[fodrv7]

Rick,
Here are the figures I extracted from the Lycoming Manual for my IO-360M1.
If yoo would like it as a MS Word document, email me fod@bigpond.net.au

Hope this helps,
Pete.

ENGINE
Cylinder Head Temperature
Absolute Max 260?C
Longevity Limit
High Power Cruise 224?C
Econ Cruise 203?C
Lycoming Recommend maximum temperature change of 28?C per minute.
John Deaking Min Take-off CHT 100?C
Exhaust Gas Temperature
Max 900?C
Normal: 650?C to 760?C
Oil Pressure:
Minimum 55psi
Maximum 95psi
Idle 25 psi
Start-up, 115psi
Warm-up, 115psi
Taxi 115psi
Take-off 115psi
Oil Inlet Temperature
Maximum 118?C
Desired 82?C
Minimum Continuous 60?C
Oil Consumption
0.45 US QTS/Hr = 0.4 Litre/Hr at 75% Power
Oil Grade
Use STRAIGHT MINERAL Oil for First 50 hours OR until Oil Consumption has
stabilized.
Fuel Pressure :
Minimum ?2psi
Maximum 35psi

[fodrv7]

Rick,
Of course being an Aussie the figures are in Centigrade.
If you have trouble converting them let me know and I shall do it.

Pete.

[az_gila]

Rick... if you want the data in real units... ...you can check the Superior web site for their certified Vantage O-360 info.

http://www.superiorairparts.com/Docs...ge/SVIOM01.pdf

Since it's a copy of the Lycoming O-360, the limits should be identical.

Check pages 93-94 of the above document for the info on defining the instrumentation ranges.

gil A

[gmcjetpilot]

Similar to above here are lycs key reprints, a treasure trove of info:

http://www.lycoming.textron.com/supp...ints/index.jsp

specifically:

8. For maximum service life, maintain the following recommended
limits for continuous cruise operation:

a. Engine power setting ? 65% of rated or less.
b. Cylinder head temperatures ? 400˚ F. or below.
c. Oil temperature ? 165˚ F. ? 220˚ F.

[fodrv7]

Gil,
Just to clarify things.

International Standard Atmosphere. Temperature 15?C and Atmospheric Pressure 1013.2mb. For Americans, still thinking in the era of Robert Boyle (1627-1691), who discovered Boyle?s Law and used a mercury barometer to prove it, the figure is 29.92?Hg

[az_gila]

Originally Posted by fodrv7

Gil,
Just to clarify things.

International Standard Atmosphere. Temperature 15?C and Atmospheric Pressure 1013.2mb. For Americans, still thinking in the era of Robert Boyle (1627-1691), who discovered Boyle?s Law and used a mercury barometer to prove it, the figure is 29.92?Hg

Yes... but didn't the "Standard Atmosphere" folks blow it too.....

I bet they really aimed for the standard to be 1000 mb (one Bar) and missed....

So, if we can't use nice round numbers for standards, I'm happy (along with the FAA and my Mode C encoder) to stick with 29.92 to be the standard....

The other units are stuck in the age of Torricelli (1608-1647) and heck, the definition of the bar by these "Standard Atmosphere" folks is even younger than I am (defined in 1954......)!!

gil A

[gmcjetpilot]

Originally Posted by fodrv7

Gil,
Just to clarify things.

International Standard Atmosphere. Temperature 15ºC and Atmospheric Pressure 1013.2mb. For Americans, still thinking in the era of Robert Boyle (1627-1691), who discovered Boyle’s Law and used a mercury barometer to prove it, the figure is 29.92”Hg

James how can we trust you. Your toilets go the wrong way. You drive on the wrong side of the road. You cook shrimps on the barbie, and your winters are summers and summers winters; you're just on the wrong side of the planet.

Seriously we like using the size of the kings foot and the temperature of a cows took-us for our standards. Base 10 math is for lazy wussies. We have 8 or 12 of this, 16 of that, 32 of another. It takes a real man to figure out the kings standard. Metric is for them foreigners.

(I remember in the 80's in college I had to solve problems both SI and English. It was a pain, but 20 years ago, going metric was the soon expected standard in the USA. Still waiting. I think we gave up. Too much inertia.)

[fodrv7]

I know, I know, George.
Down under and Down-and-Out.
We just have to live with it.

But yous blokes (as they say here) are missing a great opportunity to shaft me.
We use Km per hour and metres on the ground and KTS and feet in the air. Terribly inconsistent.

As far as your sticking with the 'British' system, it was explained to me that the USA was planning to go metric in the 80's but a few (100,000s) petitioned congress to stop it. And were successful. Well, down here in OZ, rotating the wrong way and standing upside down, we consider democracy is what the majority wants. So now you in the States are left with a bit of everything. 1/32" rivets that can be 3.5 of a 1/16" long. Now I have to ask you George. How can you have a decimal, 3.5, of a fraction, 1/16th.

Reminds me of the Hubble Telescope being built out of focus. Something about being design in mm and built in inches?

What fascinates me, as someone outside (Downunder) looking in (Up) is that, and this is only an observation, not a criticism, the USA contains, in the same breath, absolutely brilliant cutting edge technology and yet inexplicable conservatism?

Oh! By the way. The vast majority drive on the left. You can't compete in numbers with China, India and Japan.

But you are such a friendly bunch and I am suffering US withdrawal symtoms as I haven't been over since I bought my RV in person in Aurora.
Time to come over and have a few prawns on the Barbie with ya.

Pete.

[az_gila]

Originally Posted by fodrv7

....
Reminds me of the Hubble Telescope being built out of focus. Something about being design in mm and built in inches?
....
Pete.

No.... the Hubble error was a manufacturing screw-up by Perkin-Elmer, and a NASA cost saving by not performing a final test (or a faulty test) of the whole system that would have caught the error...

http://query.nytimes.com/gst/fullpag...5BC0A966958260

The units screw up was at JPL on a Mars Orbiter... oops!!!

http://mars.jpl.nasa.gov/msp98/news/mco991110.html

gil A

PS I think an AN426-3-4.5 rivet designation makes complete sense.... you just have look it up....