Temperatures - Rotax 582

Technical questions, advice, sharing information etc (aircraft, engines, instruments, weather and such)
Post Reply
User avatar
Papillon
Passed radio course
Passed radio course
Posts: 70
Joined: Mon Feb 26, 2007 8:04 am
Location: Grahamstown

Temperatures - Rotax 582

Postby Papillon » Tue Feb 27, 2007 3:19 pm

Come on all you 582 gurus - enlighten me!!

What is an ok temperature to run a 582 to?
Top
User avatar
John Young
The Boss
The Boss
Posts: 1973
Joined: Tue May 24, 2005 8:38 am
Location: Jacksonville, Florida, USA

At 70° C you will be on the money

Postby John Young » Tue Feb 27, 2007 5:19 pm

I have assumed that you are asking about water temperature and not EGT or CHT etc. For water temperature ....

Not below 60° C and not above 80° C.

At 70° C you will be on the money.

Regards
John ZU-CIB

PS: Guru I am not :!:
Top
User avatar
Aerosan
Frequent Flyer
Frequent Flyer
Posts: 1133
Joined: Fri Aug 05, 2005 12:12 am
Location: Krugersdorp

Postby Aerosan » Wed Feb 28, 2007 7:03 am

I run between 70 and 90 :shock: Its been OK so far
Live simply. Love generously. Care deeply. Speak kindly. Leave the rest to God.
Top
User avatar
Massimo
Top Gun
Top Gun
Posts: 588
Joined: Wed Jan 10, 2007 2:39 pm
Location: microland

Postby Massimo » Wed Feb 28, 2007 9:30 am

me between 70 and 80, over the weekend did climb to 90 with pax and temperatures of 30 degress and alot of climbing and gliding, climbing and gliding.
Top
User avatar
Bacchus
Flying low - mind the power lines
Flying low - mind the power lines
Posts: 375
Joined: Tue Oct 11, 2005 9:21 pm
Location: Wintervogel C.T.

Postby Bacchus » Wed Feb 28, 2007 10:29 am

80 with pax and 70 without pax
ZU-GFC COBRA
Top
User avatar
Thunderboy
Pilot in Command
Pilot in Command
Posts: 775
Joined: Fri Nov 04, 2005 2:51 pm
Location: CrossWinds
Contact:
Contact Thunderboy

Postby Thunderboy » Wed Feb 28, 2007 3:14 pm

okay and what about EGT on same engine?
Thunderbird ZU-ECX
Top
User avatar
DieselFan
Frequent Flyer
Frequent Flyer
Posts: 1080
Joined: Fri Aug 26, 2005 10:17 am

Postby DieselFan » Wed Feb 28, 2007 3:24 pm

1100f
Top
User avatar
Massimo
Top Gun
Top Gun
Posts: 588
Joined: Wed Jan 10, 2007 2:39 pm
Location: microland

Postby Massimo » Wed Feb 28, 2007 5:45 pm

:shock: :shock: :shock: :roll: :roll:
Top
User avatar
John Young
The Boss
The Boss
Posts: 1973
Joined: Tue May 24, 2005 8:38 am
Location: Jacksonville, Florida, USA

Answer is 590º C.

Postby John Young » Wed Feb 28, 2007 8:09 pm

DieselFan wrote:1100f
Minus a factor of 35, divide by 9 and multiply by 5 gives you degrees C.

Answer is 592º C. :roll: :roll:

Actually mine register 560º C.

Regards
John ZU-CIB
Top
User avatar
DieselFan
Frequent Flyer
Frequent Flyer
Posts: 1080
Joined: Fri Aug 26, 2005 10:17 am

Postby DieselFan » Wed Feb 28, 2007 9:45 pm

freshman wrote::shock: :shock: :shock: :roll: :roll:
Sorry man, I was in a hurry my EGT's units are in Farenheit. Looks like Mr William Smith sorted it out though :wink:
Top
Abe
First solo
Posts: 93
Joined: Sat Jun 11, 2005 8:29 pm

Postby Abe » Thu Mar 01, 2007 12:28 am

Hi Fliers!
John Young said: "For water temperature ....
Not below 60° C and not above 80° C."
Does not compute...
If CHT or EGT can go 590 deg C or more...
what does a few deg C water temp matter?
As long as you are not boiling off coolant, up to 110 deg C or whatever your radiator cap can keep in is fine by me, higher temps shed more heat, engine should be more efficient as well?
Niren, please desist, engine buffs, relate!
FlySafe!
Abe
Top
User avatar
ZULU1
Frequent Flyer
Frequent Flyer
Posts: 1339
Joined: Fri Aug 26, 2005 8:39 pm
Location: Salt Rock (Ballito) & Mud Island
Contact:
Contact ZULU1

John Young is correct

Postby ZULU1 » Thu Mar 01, 2007 1:11 am

About 80 max, mine went to 110 degrees crank went, sound of silence, (twice) then I bought a 4 stroke..EGTs @ 1100 degrees F, this indicates carb rubbers etc.

Its a two stroke remember they dont have oil in them...

eish Zulu1
Centrifugal force in pure Physics does not exist, however this does not apply to Taxi drivers..
Top
User avatar
John Young
The Boss
The Boss
Posts: 1973
Joined: Tue May 24, 2005 8:38 am
Location: Jacksonville, Florida, USA

CHT at 590° C - not possible

Postby John Young » Thu Mar 01, 2007 6:54 am

Abe wrote:If CHT or EGT can go 590 deg C or more...
what does a few deg C water temp matter?
Hello Abe,

CHT at 590° C - not possible - motor would be quiet long before that.

Water temp at 110° C - motor would also go quiet.

Regards
John ZU-CIB
Top
Abe
First solo
Posts: 93
Joined: Sat Jun 11, 2005 8:29 pm

Postby Abe » Fri Mar 02, 2007 10:23 am

Sorry, John and all, on CHT I was mistaking Deg F and C.
Just dug out my CHT meter last used on the Hirth, it is calibrated in Farenheit and operation was around 550 deg F. It melted a hole between the plugs when running too lean in a powered descent, by the time I noticed 700 deg (F!) it was too late. (Virginia Airshow many moons ago, watched the rest of the show from the beach....)
Now, a question on water temperature..
John, just what goes wrong in a 582 at 100 deg C? (assuming no water loss) Are you sure the crank failures reported can be ascribed to this?
FlySafe!
Abe.
Top
User avatar
John Young
The Boss
The Boss
Posts: 1973
Joined: Tue May 24, 2005 8:38 am
Location: Jacksonville, Florida, USA

Boom - quiet - glide !

Postby John Young » Wed Mar 07, 2007 7:40 pm

Abe wrote:John, just what goes wrong in a 582 at 100 deg C?
The same as when you take a BMW way past the red line on the rev counter and keep it there [assuming no rev limiter].

In the event of flying with your 582 ....

BOOM :!: - quiet - glide :shock: :shock: :shock:

Regards
John ZU-CIB
Top
Post Reply

Return to “Technical Talk”

Who is online

Users browsing this forum: No registered users and 5 guests