NOT Bleeding the coolant system

viper84737

viper84737

Well-known member
Question: How critical is it to crack open the bleeder screw to bleed out the air bubbles in the cooling system of a 2010 GSXR 600? My bleeder screw won't budge and the head is rounded now, and I'm paranoid next year when I go to re-fill my coolant that not being able to get out the air bubbles will be a problem, and I have no experience with this sort of issue. Please help.

Backstory: I had to dump my coolant earlier this year when we had that first nasty cold snap, to make sure the water in my coolant wouldn't freeze and break any pipes or the engine block (call me paranoid). I did this because I arrived home very late at night and didn't have enough time that night to properly winterize the bike. Today I properly winterized the bike. That meant pouring water back into the cooling system so I could run the motor so that the fuel stabilizer could make its way into the fuel injectors and lines. My bleeder valve screw is rounded and for some reason won't budge at all when I go to turn it, I've sort of stripped the head a bit. I decided to run the motor and everything seemed ok. The temps got up to 104-106 C before the fan kicked on, as always, and the temps dropped back down to 99 C where the fan shut off, all as normal.
 
What do you have in now? Water or antifreeze?

edit: Based off your description, it sounds like everything is ok and you shouldn't worry.
 
Distilled water right at this minute (no anti-freeze), but I'm just waiting for it to cool off and I'll drain it all completely to store it, like I always do.
 
kellen said:
Just run it with the rad cap off
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That wouldn't necessarily get the air from the engine. You need to heat cycle the engine to get the air out of the engine.

You could store it as is. There is nothing wrong with air in there while the machine is not running.

In the future I'd recommend warming the engine before getting nuts & bolts out
 
after filling, lean the bike over as far as you can opposite of the rad cap, it will burp, and you now will be able to add 1/2 liter more. do this untill it no longer burps.
 
racepro171 said:
after filling, lean the bike over as far as you can opposite of the rad cap, it will burp, and you now will be able to add 1/2 liter more. do this untill it no longer burps.
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I agree this is what I do with my motocross bikes
 
If you had coolant in it before why did you have to drain it? You should not run straight water in place of coolant as it does not have any lubrication in it for the seals. A short time won't hurt but for the summer you'd need to add something like water wetter.


Sent from my iPod Touch
 
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