Coolant drain bolt on 919 block? - Honda Motorcycles - FireBlades.org
Honda FireBlade Discussion of the Honda CBR 900RR, Honda CBR 929RR, Honda CBR 954RR, and Honda CBR 1000RR Motorcycles.

User Tag List

 
LinkBack Thread Tools
post #1 of 8 Old 05-13-2014, 4:58 AM Thread Starter
 
Join Date: 04-03-2012
Location: NY
Posts: 25
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Reputation Power: 0
 
Coolant drain bolt on 919 block?

Replacing radiator coolant on 1998 CBR900.

This thread mentions a coolant drain bolt (air bleeder bolt) on the engine block: https://www.fireblades.org/forums/hon...g-coolant.html

Need help locating where the bolt is, if my '98 has one?
rustedroot is offline  
Sponsored Links
Advertisement
 
post #2 of 8 Old 05-13-2014, 8:24 AM
 
Join Date: 07-28-2012
Location: Dallas TEXAS
Age: 31
Posts: 1,287
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Reputation Power: 36
                     
Re: Coolant drain bolt on 919 block?

Should be bolt with copper washer on water pump housing i believe.

Rubber side down, One wheel to the sky for those who we won't forget. R.I.P homies miss you.
900rrHonda is offline  
post #3 of 8 Old 05-13-2014, 8:54 AM Thread Starter
 
Join Date: 04-03-2012
Location: NY
Posts: 25
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Reputation Power: 0
 
Re: Coolant drain bolt on 919 block?

Yes, I opened the 10mm drain screw located on water pump (replaced the copper washer also).

But that old forum thread I linked to in my post mentions an additional drain plug located on the cylinder block.


Bladeracer posted: "The manual explains how to "burp" the air out of the cooling system. Drain it from wherever you prefer. If you use the drain screws on the pump or block be aware the coolant will come out horizontally so be ready to catch it."


And here is another post mentioning the cylinder block drain port: https://www.fireblades.org/forums/hon...rain-plug.html

Last edited by rustedroot; 05-13-2014 at 9:29 AM.
rustedroot is offline  
Sponsored Links
Advertisement
 
post #4 of 8 Old 05-13-2014, 10:02 AM
Global Moderator
 
bladeracer's Avatar
 
Join Date: 11-14-2003
Location: Perth, WestOz
Age: 53
Posts: 32,034
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 8 Post(s)
Reputation Power: 229
                     
Re: Coolant drain bolt on 919 block?

Quote:
Originally Posted by rustedroot View Post
Yes, I opened the 10mm drain screw located on water pump (replaced the copper washer also).

But that old forum thread I linked to in my post mentions an additional drain plug located on the cylinder block.


Bladeracer posted: "The manual explains how to "burp" the air out of the cooling system. Drain it from wherever you prefer. If you use the drain screws on the pump or block be aware the coolant will come out horizontally so be ready to catch it."


And here is another post mentioning the cylinder block drain port: https://www.fireblades.org/forums/hon...rain-plug.html

Neither of the threads you posted refer to the 900RR.
Does it say in the manual that it has an engine drain plug?

"I won't forget that ride for a while. Maybe you're right. Living fast might be worth the final crash. Maybe that's the secret you fliers know." - Flight of the Intruder
bladeracer is offline  
post #5 of 8 Old 05-13-2014, 11:47 AM Thread Starter
 
Join Date: 04-03-2012
Location: NY
Posts: 25
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Reputation Power: 0
 
Re: Coolant drain bolt on 919 block?

Now I see that those posts were for 929

The downloaded service manual I have isnt very clear. There is a photo that has an "Air Bleed Tube" shown in section/page 8-9. But it says its for 95~97.
rustedroot is offline  
post #6 of 8 Old 05-13-2014, 12:36 PM
Global Moderator
 
bladeracer's Avatar
 
Join Date: 11-14-2003
Location: Perth, WestOz
Age: 53
Posts: 32,034
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 8 Post(s)
Reputation Power: 229
                     
Re: Coolant drain bolt on 919 block?

Quote:
Originally Posted by rustedroot View Post
Now I see that those posts were for 929

The downloaded service manual I have isnt very clear. There is a photo that has an "Air Bleed Tube" shown in section/page 8-9. But it says its for 95~97.

An air bleed would not be a drain plug, air would be at the top of the system, drains are at the bottom.
If you can't find a plug, and the manual doesn't show one, then I would guess the engine doesn't have one.

"I won't forget that ride for a while. Maybe you're right. Living fast might be worth the final crash. Maybe that's the secret you fliers know." - Flight of the Intruder
bladeracer is offline  
post #7 of 8 Old 05-13-2014, 2:45 PM Thread Starter
 
Join Date: 04-03-2012
Location: NY
Posts: 25
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Reputation Power: 0
 
Re: Coolant drain bolt on 919 block?

ok, thanks for the info bladeracer. just trying to drain as much of the old coolant as possible without removing hoses or flushing.


2 other questions -

Can you explain how the reserve tank functions?


How to fill and bleed the system?
rustedroot is offline  
post #8 of 8 Old 05-13-2014, 2:48 PM
Global Moderator
 
bladeracer's Avatar
 
Join Date: 11-14-2003
Location: Perth, WestOz
Age: 53
Posts: 32,034
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 8 Post(s)
Reputation Power: 229
                     
Re: Coolant drain bolt on 919 block?

Quote:
Originally Posted by rustedroot View Post
ok, thanks for the info bladeracer. just trying to drain as much of the old coolant as possible without removing hoses or flushing.


2 other questions -

Can you explain how the reserve tank functions?


How to fill and bleed the system?

There really won't be much trapped in the engine.
The reservoir only functions when the engine gets hot enough to blow the relief valve in the radiator cap. The return valve then draws coolant back from the reservoir as the engine cools.
If you never let the engine get that hot then you don't need the reservoir.
Follow the directions in the manual, bikes often have their own bleed techniques.

"I won't forget that ride for a while. Maybe you're right. Living fast might be worth the final crash. Maybe that's the secret you fliers know." - Flight of the Intruder
bladeracer is offline  
Reply

  Lower Navigation
Go Back   Honda Motorcycles - FireBlades.org > Honda Motorcycle Models > Honda FireBlade

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Honda Motorcycles - FireBlades.org forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

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

Password:


Confirm Password:
Email Address
A valid e-mail address is REQUIRED. You will not have access to any site features until you activate your account using the activation e-mail that is sent to this address.

Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Similar Threads
Thread Thread Starter Forum Replies Last Post
Need help 929...which bolt is the coolant drain plug? see pix inside maxgee Honda FireBlade 5 02-09-2007 1:31 PM
03 CBR600 Coolant drain jnor Honda CBR 600 1 12-06-2006 4:01 PM
RC51 coolant drain RRWANTR Honda RC51 2 01-24-2006 4:54 PM
Coolant drain plug Skully Honda FireBlade 4 09-23-2003 2:35 PM
How To coolant drain/flush trey Honda FireBlade 1 08-20-2003 10:17 PM

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 Off
Pingbacks are Off
Refbacks are Off

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