trafficinsight
Well-Known Member
And how long you must wait between cranks, and how many times you can do that before you need to go get lunch to let it cool down.
Fuel Injected Engines & Hot Starts
- Thread starter VUOFlyer
- Start date
And how long you must wait between cranks, and how many times you can do that before you need to go get lunch to let it cool down.
Maybe it is my lack of experience with various engines, but I think people WAAAAYYYY over complicate this stuff.
Want to know my warm start procedure...
1) Clear prop!
2) Starter (5 seconds)
If it fails, one shot of prime and repeat. If that fails I go do something for 10 minutes and come back. I have only had to walk away from one airplane so far in my career.
Maybe all of my engines have been super engines, I don't know. But I don't use any fancy techniques ever: no pumping throttles, now wiggling the rudder, I don't bring my lucky starting engine socks. I follow the basic procedure from the POH and go fly. Other than the Volkswagen engines in our grobe gliders, they were annoying. Only because the starter usually couldn't turn the prop well on cold days.
Want to know my warm start procedure...
1) Clear prop!
2) Starter (5 seconds)
If it fails, one shot of prime and repeat. If that fails I go do something for 10 minutes and come back. I have only had to walk away from one airplane so far in my career.
Maybe all of my engines have been super engines, I don't know. But I don't use any fancy techniques ever: no pumping throttles, now wiggling the rudder, I don't bring my lucky starting engine socks. I follow the basic procedure from the POH and go fly. Other than the Volkswagen engines in our grobe gliders, they were annoying. Only because the starter usually couldn't turn the prop well on cold days.
wjmiller3
Well-Known Member
I've noticed that too. We have eight SR22's and some start like nothing, and others you have to hold your tongue to the right while singing the national anthem for them to hot start.
dasleben
That's just, like, your opinion, man
Frankly, walking away for 10 minutes isn't much of an option when you have a load of people with connections to make. There are ways to start a hot engine just fine, but it does involve more than just trying a couple times with a two-step process.
I used to do 5 minute turns down in the Caribbean, and what usually worked for quick turns was this (TSIO-520-VB):
-Throttle full open
-Mixture full rich
-About a half second of prime (or no prime, personal preference)
-When the engine starts coughing, release the starter and briskly pull the throttle back to keep the RPMs down.
If that didn't work, you probably flooded it. Try the same above, except no prime, and try the mixture at idle.
If that doesn't work, do the purge procedure:
-Throttle full open
-Mixture idle-cutoff
-Mags off
-Engage the starter for 15 revolutions
-Mags on
-Mixture full
-Prime as normal
-Throttle cracked
I've never had a problem starting a flooded engine after the purge procedure.
Fly_Unity
Well-Known Member
By the time you did all that your battery would be dead if you lived up North where its cold. I found on some of these twins I fly that if its extremely cold and it dont start within 10 revolutions, your bat is dead. So you got to get it right the first time. TGray has the best solution I read here.
Fly_Unity
Well-Known Member
Unfortunately if your in the charter business, that wont work out to well. When I was a CFI and flew 152's and 172's I never really had a problem starting engines either. After working for a 135 gig that has old planes, Im still learning the art of starting engines.
dasleben
That's just, like, your opinion, man
What type of twin and where are you flying it? I am up north, and I dare say that if you're only getting 10 turns out of the starter before the battery is dead, you may need a new battery. :dunno:
Mike H
Well-Known Member
Mike H
Well-Known Member
I used to do that, but when it didn't work, I called it a dirty @$%&#♂¿ and told it I wouldn't give it any more gasoline unless it was nice to me