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582 Blue Head problem

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George Myers

Joined: 10 Jan 2006
Posts: 76
Location: San Marcos, Texas

Posted: Mon Sep 22, 2008 4:18 am Post subject: 582 Blue Head problem

I just decarboned & replaced the crank seals my 582 blue head. It runs great but has one big problem. It keeps forcing coolant out of the overflow. At higher rpms it will fill the expansion bottle in a few minutes, but nothing comes out under 3500.  It will continue forcing the coolant out until enough is lost for the engine to overheat. Water Temp is perfect until enough fluid is forced out and then skyrockets. It isn’t the cap as I have tried 2 and it makes no difference. There is pressure inside even after cool down. I am assuming either a gasket leaking or improperly installed. I would appreciate any ideas.  

Thanks  

George E. Myers Jr.  

San Marcos, TX 78666  

Quicksilver MXLII 582 Blue Head C box N8130K  

       [quote][b]

Guy Buchanan

Joined: 16 Jul 2006
Posts: 1204
Location: Ramona, CA

Posted: Mon Sep 22, 2008 9:41 am Post subject: 582 Blue Head problem

At 05:18 AM 9/22/2008, you wrote:

 	  Quote: 	
		  It will continue forcing the coolant out until enough is lost for 

the engine to overheat. Water Temp is perfect until enough fluid is 

forced out and then skyrockets. It isn't the cap as I have tried 2 

and it makes no difference. There is pressure inside even after cool 

down. I am assuming either a gasket leaking or improperly installed. 

I would appreciate any ideas.


	


Three:



1. Leaking head O-ring allows high pressure gas into the water 

jacket. Replace O-rings and carefully inspect seats.



2. Leaking cylinder bolt allows gas from the block into the water 

jacket. (Remember that on a 2-stroke the case is pressurized.) 

Replace cylinder base gasket and lube the cylinder bolts on installation.



3. The coolant system needs bleeding. Any residual gas in the coolant 

system will expand and force out coolant when it gets hot. Make sure 

you vent the system vigorously. (E.g. shake the crap out of it.)

Guy Buchanan

San Diego, CA

K-IV 1200 / 582-C / Warp / 100% done, thanks mostly to Bob Ducar.

_________________
Guy Buchanan
Deceased K-IV 1200
A glider pilot too.

Gtblu

Joined: 18 Jul 2006
Posts: 37
Location: Australia

Posted: Tue Sep 23, 2008 3:54 am Post subject: Re: 582 Blue Head problem

Hi George,

My 912 was exhibiting the same symptoms. Finally tightened all the hose clamps and problem was solved. No sign of a leak on the ground, but that was what was wrong in this case. Worth a try if you have't gone there already

regards

Geoff Bell

Roger Lee

Joined: 10 Jan 2006
Posts: 1464
Location: Tucson, Az.

Posted: Wed Sep 24, 2008 7:13 am Post subject: Re: 582 Blue Head problem

Hi George,



Guy has hit the nail on the head. You have high pressure bleeding into your coolant.

_________________
Roger Lee
Tucson, Az.
Rotax Instructor & Rotax IRC
Light Sport Repairman
Home 520-574-1080 TRY HOME FIRST
Cell 520-349-7056

George Myers

Joined: 10 Jan 2006
Posts: 76
Location: San Marcos, Texas

Posted: Wed Sep 24, 2008 4:59 pm Post subject: 582 Blue Head problem

Sure did. Turns out my old torque wrench was about 15 inlbs off. Torqued the

head with a new one and it woiks poifect. Now all I have to do is pull the

head off & retorque the cylinders & check all the misc other bolts. Fun fun!

Thanks all

George



 	  Quote: 	
		  Hi George,

Guy has hit the nail on the head. You have high pressure bleeding into your

coolant.
	


 	  Quote: 	
		  Roger Lee

Tucson, Az.

Light Sport Repairman - Maintenance Rated

Rotax Service Center

520-574-1080


	




Read this topic online here:



http://forums.matronics.com/viewtopic.php?p 5929#205929

Float Flyr

Joined: 19 Jul 2006
Posts: 2704
Location: Campbellton, Newfoundland

Posted: Wed Sep 24, 2008 6:02 pm Post subject: 582 Blue Head problem

A few ideas on using the torque wrench. 



You should check the calibration on your torque wrench every year or if you

use it as seldom as I do now check it each time you use it.  



When you are finished using The torque wrench remember to reset spring type

wrenches back to 0 to take pressure off the spring.



Never use the torque wrench to loosen nuts or bolts.



To check the torque on a nut or bolt you first must slacken the nut or bolt.



Finally Snap-On makes a real nifty, and expen$ive, digital torque wrench

that calibrates itself before each use.  It has both an audible and

vibration notification that the pre set torque has been achieved.  The

wonder of the load cell!



Noel



--

_________________
Noel Loveys
Kitfox III-A
Aerocet 1100 Floats

craig(at)craigandjean.com
Guest

Posted: Wed Sep 24, 2008 7:01 pm Post subject: 582 Blue Head problem

 	  Quote: 	
		   Finally Snap-On makes a real nifty, and expen$ive, digital torque wrench

 that calibrates itself before each use.  It has both an audible and

 vibration notification that the pre set torque has been achieved.  The

 wonder of the load cell!


	


I like my 1/4 inch Computorq3. About $280:



www.cditorque.com/pdfs/Computorq3_2005.pdf



-- Craig

George Myers

Joined: 10 Jan 2006
Posts: 76
Location: San Marcos, Texas

Posted: Thu Sep 25, 2008 4:16 am Post subject: 582 Blue Head problem

My torque wrench is a 1/4 snap-on from my railroad days (late 60's). I just

talked to my local snap-on rep & he'll rebuild & recalibrate it for free.

Gotta love those guys.

George

San Marcos, TX 78666

Quicksilver MXLII 582 Blue Head C box N8130K



 	  Quote: 	
		   Finally Snap-On makes a real nifty, and expen$ive, digital torque wrench

 that calibrates itself before each use.  It has both an audible and

 vibration notification that the pre set torque has been achieved.  The

 wonder of the load cell!


	


I like my 1/4 inch Computorq3. About $280:



www.cditorque.com/pdfs/Computorq3_2005.pdf



-- Craig

Float Flyr

Joined: 19 Jul 2006
Posts: 2704
Location: Campbellton, Newfoundland

Posted: Thu Sep 25, 2008 5:10 am Post subject: 582 Blue Head problem

Another beauty!  More bells and whistles!



Noel



--

_________________
Noel Loveys
Kitfox III-A
Aerocet 1100 Floats

Float Flyr

Joined: 19 Jul 2006
Posts: 2704
Location: Campbellton, Newfoundland

Posted: Thu Sep 25, 2008 5:21 am Post subject: 582 Blue Head problem

If you are going to strip down to re-torque everything you may as well

inspect the seals/O rings as you go.



Have fun and let us know when it's running properly.



Noel



--

_________________
Noel Loveys
Kitfox III-A
Aerocet 1100 Floats

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