582 smoother idle!?

[Dusty]

Our club field is 180ft and most of my flying is below 3000ft
I use a hacman type mixture controle so height and temp is not an issue but his is really only effective in the mid range(a must have on a 582)
Your idle mixture screw will only give a small change,possibly not enough but it won't hurt to try
Never be afraid to experiment but be careful

[Olle1975]

I use a hacman type mixture controle

Sounds good - show me more, may be a link?

Olaf

[Dusty]

I'm not much on the computer link thing
Google hacman there is plenty of information on line
This setup is very easy to make and install provided you have the later style carbs.
green sky?sell a kit for a reasonable price,it will pay for itself in short time.
To be able to lean our mixture to 1150 and gain 300 rpm at the same time is very satisfying

[Olle1975]

http://www.greenskyadventures.com/bi...an_Article.htm

Do you have a handbook or installationguide for copy?

[Dusty]

I don't have any instructions etc but there is more than enough information on line.
The hardest part is finding a compact vernier type flow valve.truck parts/accessory retailers would be a good start.I will try to post a schematic in the next few days

[Olle1975]

Thanks, that's exactly the part I'am intersting in - how to connect the tube and fittings etc.

Olaf

[Dusty]

I have drawn up a diagram and will try to scan and post tonight.
Basically take vacuum from the factory tappings in both carbs to a dash mounted vernier flow valve,then to the float vents which have been linked and vented to the back of your aircleaner.
Note the carbs have to be vented when the mixture controle is turned off,this is one of the reasons the vents go to the aircleaner,
I installed a restricter of 1.5mm (from memory?) to make the controle more sensitive
I found my mid range jetting a little leaner possibly due to the carbs now venting to the aircleaner,so lifted the needles one notch
Job done!

[Dusty]

I hope this is some help. This is from memory as I fitted it some years ago.
The barbed T that goes into the aircleaner is the one that will need a restricter.

[Olle1975]

Thank you very much. I think, you have only one vacuum line from carb!?

I found a few pics from Installation, what do you think?

http://www.avidfoxflyers.com/index.p...n-kit-install/

Is it right, that you can lean the mixture only and not set rich?

Olaf

[Dusty]

One vacuum line may work but your mixture controle may be less sensitive?
One quarter turn=200F with my setup
10,000ft needs 3/4 of a turn to maintain 1150F

There is a lot of good information on that site regarding setup

There isn't a rich setting unless you set your carbs rich,the best setting is with the hacman off your EGT's will be slightly rich of ideal so in the circuit, turn it off and forget about it
You will never need a richer setting except in very cold days,best to set your carbs for these days
If you ever encounter high EGT's for any reason(a prop change a while ago caught me out!)remember you can crack the choke slightly and force the temperature down,this simple trick will see you safely back on the strip with no engine damage