Coolant question - Kawasaki Vulcan 750 Forum : Kawasaki VN750 Forums
Engine / Exhaust / Cooling
\ From the radiator, through the case and out
the exhaust. If it has to do with the cooling,
engine or exhaust, discuss it here!

Reply
 
LinkBack Thread Tools Display Modes
post #1 of 16 (permalink) Old 09-08-2011, 11:49 PM Thread Starter
Junior Member
 
Join Date: Mar 2011
Posts: 15
iTrader: (0)
 
Coolant question

After stator rebuild and a new R/R the bike still overheated in a few miles. Earlier this year I replaced all the cooling system rubber parts and thermostat. I ordered a new radiator cap as the old one was a bit rough.

Flushed with Gunk super heavy duty engine flush and drained. I got out the infrared thermometer and carefully watched the temp at the top and bottom of the radiator, and the temp gauge. Also watched the fan to see when it kicked on. Refilled with fresh water and warmed up again. The fan turned on sooner (by about 4 needle widths) and stayed about 3 needle widths cooler than it had before. Temperatures dropped about 10 degrees at the top and bottom. My take is the sensors for temp and fan switch were coated with scale.

I need to pick up antifreeze tomorrow and wanted to throw this out as I didn't see it when I searched this forum. Seems some folks are using Honda Type 2 antifreeze from car dealerships in other water cooled bikes. Its blue colored which would make it easier to see in the overflow tank. I see mixed reviews on Dexcool. I don't want to get bent over at the Kaw dealer if I can avoid it. Has anyone had any experience with the Honda Type 2 in a VN750?
sparks54 is offline  
Sponsored Links
Advertisement
 
post #2 of 16 (permalink) Old 09-09-2011, 08:07 AM
Members who have donated towards server costs
 
JM2001's Avatar
 
Join Date: Mar 2011
Location: Rochester, New York
Posts: 1,803
iTrader: (1)
 
Quote:
Originally Posted by sparks54 View Post
After stator rebuild and a new R/R the bike still overheated in a few miles. Earlier this year I replaced all the cooling system rubber parts and thermostat. I ordered a new radiator cap as the old one was a bit rough.

Flushed with Gunk super heavy duty engine flush and drained. I got out the infrared thermometer and carefully watched the temp at the top and bottom of the radiator, and the temp gauge. Also watched the fan to see when it kicked on. Refilled with fresh water and warmed up again. The fan turned on sooner (by about 4 needle widths) and stayed about 3 needle widths cooler than it had before. Temperatures dropped about 10 degrees at the top and bottom. My take is the sensors for temp and fan switch were coated with scale.

I need to pick up antifreeze tomorrow and wanted to throw this out as I didn't see it when I searched this forum. Seems some folks are using Honda Type 2 antifreeze from car dealerships in other water cooled bikes. Its blue colored which would make it easier to see in the overflow tank. I see mixed reviews on Dexcool. I don't want to get bent over at the Kaw dealer if I can avoid it. Has anyone had any experience with the Honda Type 2 in a VN750?
Any 50/50 mix of antifreeze which says suitable for aluminum engines on the container is ok. I get mine at Walmart, it's green and called SuperTech Antifreeze and Coolant.

JM2001

" Loud Pipes Risk Rights "

2001 Vulcan 750
marbled
TOC upgrade on ACCT
Air/fuel mixture set to 2 1/2 out
rectifier relocated
splines lubed
iridiums
decals removed
upgraded mirrors
Pic up coil mod done
degoated
All LED lighting
Upgraded Mosfet rectifier
JM2001 is offline  
post #3 of 16 (permalink) Old 09-09-2011, 09:07 AM
Members who have donated towards server costs
 
flitecontrol's Avatar
 
Join Date: Dec 2008
Location: Monroe, LA
Posts: 4,698
iTrader: (14)
 
I agree with JM2001.

Ethylene glycol is the same stuff no matter the color or whose name is on the container. There may be different products that perform differently, but basic antifreeze is the same. Read the ingredients label to confirm.

I'm keepin' all the left over parts. I'm gonna use 'em to build another bike!
_____________________________________________
"Black Beauty"
1989 VN750 acquired December, 2008, 6,711 miles
Currently 23,298 miles

Old Blue
2001 Honda CMX250 Rebel acquired July, 2008

1987 VN750 project bike, acquired August, 2009, 33,000 miles and balancer sticking out of the case, currently awaiting attention and parts
flitecontrol is offline  
 
post #4 of 16 (permalink) Old 09-09-2011, 10:40 AM
Members who have donated towards server costs
 
93VN750's Avatar
 
Join Date: May 2006
Location: Tampa, Florida
Posts: 1,766
iTrader: (2)
 
Send a message via Skype™ to 93VN750
If you are not worried about freezing temps, I'd use Red Line Water Wetter and distilled water. Much better heat transfer than any glycol solution.

Jon

93VN750, under re-construction
vn750.com Member # 828

Rick's Stator and R/R
MF AGM Battery
Coastered
Degoated
Shaved & Jetted
Iridium's
MAC Tapered Staggered Pipes
Battery/Temp/Clock Gauge
Stainless Steel Brake Lines
Dunlop D-404's
23,XXX miles and holding pending gasket change (underway!!!)
93VN750 is offline  
post #5 of 16 (permalink) Old 09-09-2011, 12:34 PM
Members who have donated towards server costs
 
JM2001's Avatar
 
Join Date: Mar 2011
Location: Rochester, New York
Posts: 1,803
iTrader: (1)
 
Quote:
Originally Posted by 93VN750 View Post
If you are not worried about freezing temps, I'd use Red Line Water Wetter and distilled water. Much better heat transfer than any glycol solution.

Jon
Why? If you are running a 50/50 mix it will lower your temperature by only 8 degrees. If you are running 100% water, then it will lower it by 18 degrees. No one should be running 100% water in the first place. I don't see the need for it. JMO

JM2001

" Loud Pipes Risk Rights "

2001 Vulcan 750
marbled
TOC upgrade on ACCT
Air/fuel mixture set to 2 1/2 out
rectifier relocated
splines lubed
iridiums
decals removed
upgraded mirrors
Pic up coil mod done
degoated
All LED lighting
Upgraded Mosfet rectifier
JM2001 is offline  
post #6 of 16 (permalink) Old 09-09-2011, 12:49 PM
Member? ... check.
 
ZCraggRatt's Avatar
 
Join Date: Apr 2010
Location: Tennessee
Posts: 513
iTrader: (4)
 
Garage
The use of distilled water is key to the prevention of calcium scale buildup on the coolant system components. Even top off water should be distilled or at least RO.
Aluminum safe mix is a given.

my2cents.

~~C8>
ZCraggRatt is offline  
post #7 of 16 (permalink) Old 09-09-2011, 12:52 PM
Old Truck Junkie
 
niterider's Avatar
 
Join Date: Jul 2007
Location: Roby Texas
Posts: 4,130
iTrader: (15)
 
There are a few iron alloy pipes in the system. Will they rust???

02 honda sabre 1100
niterider is offline  
post #8 of 16 (permalink) Old 09-09-2011, 04:52 PM
Members who have donated towards server costs
 
93VN750's Avatar
 
Join Date: May 2006
Location: Tampa, Florida
Posts: 1,766
iTrader: (2)
 
Send a message via Skype™ to 93VN750
Quote:
Originally Posted by JM2001 View Post
Why? If you are running a 50/50 mix it will lower your temperature by only 8 degrees. If you are running 100% water, then it will lower it by 18 degrees. No one should be running 100% water in the first place. I don't see the need for it. JMO
Has your temp gauge never gone to or past the red line? Mine used to, does not since I switch to this. It always hot here in Florida so I take every advantage I can. Bike has a thermostat so it will not run too cold. Why wouldn't you want to have it run as cool as possible?

Jon

93VN750, under re-construction
vn750.com Member # 828

Rick's Stator and R/R
MF AGM Battery
Coastered
Degoated
Shaved & Jetted
Iridium's
MAC Tapered Staggered Pipes
Battery/Temp/Clock Gauge
Stainless Steel Brake Lines
Dunlop D-404's
23,XXX miles and holding pending gasket change (underway!!!)
93VN750 is offline  
post #9 of 16 (permalink) Old 09-09-2011, 04:55 PM
Members who have donated towards server costs
 
93VN750's Avatar
 
Join Date: May 2006
Location: Tampa, Florida
Posts: 1,766
iTrader: (2)
 
Send a message via Skype™ to 93VN750
Quote:
Originally Posted by niterider View Post
There are a few iron alloy pipes in the system. Will they rust???
It's not rust you are concerned with. As stated above "The use of distilled water is key to the prevention of calcium scale buildup on the coolant system components.". It's helps to keep your system flowing as much as it can without restrictions.

Jon

93VN750, under re-construction
vn750.com Member # 828

Rick's Stator and R/R
MF AGM Battery
Coastered
Degoated
Shaved & Jetted
Iridium's
MAC Tapered Staggered Pipes
Battery/Temp/Clock Gauge
Stainless Steel Brake Lines
Dunlop D-404's
23,XXX miles and holding pending gasket change (underway!!!)
93VN750 is offline  
post #10 of 16 (permalink) Old 09-09-2011, 07:05 PM
Members who have donated towards server costs
 
JM2001's Avatar
 
Join Date: Mar 2011
Location: Rochester, New York
Posts: 1,803
iTrader: (1)
 
Quote:
Originally Posted by 93VN750 View Post
Has your temp gauge never gone to or past the red line? Mine used to, does not since I switch to this. It always hot here in Florida so I take every advantage I can. Bike has a thermostat so it will not run too cold. Why wouldn't you want to have it run as cool as possible?

Jon
Never got close to the red line. Even in 98 degree temperatures my gauge never went past midpoint. I'm glad it works for you but a 8 degree decrease over a 50/50 mix shouldn't make that much difference.

JM2001

" Loud Pipes Risk Rights "

2001 Vulcan 750
marbled
TOC upgrade on ACCT
Air/fuel mixture set to 2 1/2 out
rectifier relocated
splines lubed
iridiums
decals removed
upgraded mirrors
Pic up coil mod done
degoated
All LED lighting
Upgraded Mosfet rectifier
JM2001 is offline  
Sponsored Links
Advertisement
 
Reply

Bookmarks

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Kawasaki Vulcan 750 Forum : Kawasaki VN750 Forums forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

Once registered, your User Name"cannot be changed". We can make exceptions within 7 days, but after that, it is set in stone.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome