Startup Question.

[Stewartb]

White gas can mean a couple different things, but all of them will produce about a gallon of water for each gallon of gas burned.

Let me guess. You don't probably own an MSR stove let alone use one to heat your airplane. Am I right?

 

[d5by5]

Do you start your car with the gas pedal fully depressed? An engine is an engine, running one at high RPM when cold will damage it...

 

[Henning]

Do you start your car with the gas pedal fully depressed? An engine is an engine, running one at high RPM when cold will damage it...

Depends on the car. Before EFI became the standard, there were cars that yes, you have your foot on the floor to start them. Heck, with Crower mechanical injection I had a squirt bottle of fuel that I would have to shoot down the tubes to prime, and the temperature would dictate how much throttle to give it for cranking. EFI eliminates all that as the computer assess the needs in real time and adjusts the fuel flow automatically regardless the throttle position.

If John wants to eliminate this problem, Continental makes an EFI replacement engine that he can hang on it.

 

[172andyou]

Let me guess. You don't probably own an MSR stove let alone use one to heat your airplane. Am I right?

Not that it's at all relevant to the chemistry of burning fuel, but I'm on my third camp stove and my second MSR stove, which is how I'm familiar with the fact that different people think different things are white gas.

In any case, they all produce in the neighborhood of a gallon of water per gallon of fuel burned. As that warm exhaust is being vented on your cold engine the water vapor condenses and can cause corrosion with enough use.

 

[KenO38]

Never pull the prop through it scrapes whatever oil is on the cylinder walls. Starting with the throttle full on a cold engine is insane. Recheck your POH. I start an injected 180HP Arrow by the book the mixture full. The throttle open about 1/2". Once the engine fires the throttle goes back to idle immediately and the check for oil pressure is item one.

Starting a flooded engine is a difference story. Again...check the POH and follow the book.

 

[luvflyin]

For my fuel injected, you open the throttle and close the mixture and run the fuel pump for about 30 seconds. Then you try a normal start.

Oh, wait. That is for a hot start.

To be honest, my original question was posted mostly for my wife. Since I lost my medical ages ago, she is the family pilot. And she is a great pilot, but she is not an "engine person". We disagree on leaning techniques, and until today on startup procedures. What she was doing was opening the throttle just a little prior to start and go full rich (we are at sea level). But as soon as she turned the key, she started pushing the throttle in until it would catch. When it did catch, it was at "high" throttle if not full. And she wasn't as fast as I wanted in reducing engine speed.

Today, after reading this thread, she started it with the throttle open slightly and it was much better. Sometimes a woman has to hear something from someone besides her husband.

Now if I could just get her over her fear of the red knob. But at least with the Gamis, she is doing better.

POA saves a marriage!!!!

 

[Norman]

TCM preheat recommendation is below 20*. Lycoming's is 10*. Where does the <40* cold starts are bad for cylinders info come from?

Mike Busch has been pushing that for a long time.

 

[Stewartb]

Ya, that. Not a fan.

 

[Checkout_my_Six]

TCM preheat recommendation is below 20*. Lycoming's is 10*. Where does the <40* cold starts are bad for cylinders info come from?

you need to make friends with a few Engineers.....

paging Mr. DuPuis to the white phone.

 

[kgruber]

Mike Busch has been pushing that for a long time.

Mike Busch is a magazine salesman.

 

[Stewartb]

Tis the season here. It was 33* when I started yesterday. Snow's almost half the way down the mountains surrounding Anchorage. I'm not ready!