Coolant engine -big concern- - - Excellence in Motion
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post #1 of 4 (permalink) Old Dec 27th, 2013, 2:21 pm Thread Starter
Join Date: Dec 2013
Location: Medellin, Antioquia, Colombia
Posts: 4
Coolant engine -big concern-

Hi folks,

I am writing to ask for advices that help me to solve the issue i have filling in the system with coolant liquid.

Yesterday, i had to dismount the radiator in order to reach the coils and have installed the quickshifter CPU's harness properly.

Once i finished the installation, and re assembled all the things in, i tried to fill in the system with coolant liquid trough the reservoir tank but the system just allowed to fill in the half of what bleeded before. Naturally,there is air within the system, so i started the engine, without the reservoir cap on, to make it run the liquid through the system and get the air out, but nothing happened. I opted for to close the reservoir cap, and go out to make the fluis run. Few minutes later, engine temperature raised up dramatically (i did not allow to get to hot stopping the engine to get cold). This morning i removed the reservoir cap to fill in the system, but it seem to be full (which is not).

I have read that the only and right path is to use a vaccum bleed pump to get out all the air bubbles. The thing is i have no that pump at this moment and now i have my bike waiting for the coolant :mecry: .

There is an alternate method to bleed the system out and fill in it without air bubbles inside?.

It will not work to loosen the bypass circuit bleed plug and run the engine to allow air bubbles get out?

Suggestions are welcome.


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post #2 of 4 (permalink) Old Dec 27th, 2013, 6:23 pm
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Join Date: Aug 2006
Location: San Rafael, Ca, USA
Posts: 478
Well, since you are asking in the k12/13 section i'm guessing that is the bike you are asking about. With the slant4 motor one has to vacuum bleed the system. The Brick motor was not as difficult. You have to have a dealer or dependable independant bleed the system.

Marin Phil
2013 K13S-Anniv ED
'06 K12GT Blue of course!_Sold-too many problems
'05 Ducati 999-My Italian Mistress_sold and missed
2004 K12 GT-Orient Blue-the new me.-Sold
about 30 before that but too old to remember them all..
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post #3 of 4 (permalink) Old Dec 28th, 2013, 12:21 pm
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Location: Bakersfield, CA, USA
Posts: 185
It isn't difficult, but you will need a small vacuum pump like is used for brake bleeding, Mityvac or similar.
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post #4 of 4 (permalink) Old Jan 2nd, 2014, 11:56 am
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Join Date: Mar 2006
Location: el dorado hills, CA, usa
Posts: 1,271
Coolant change

If the link doesn't work, search the forum for coolant. I think JCW has done more to his bike than any BMW tech even has.

06 K1200R,76 Yamaha RD400 VOID 7/08 ,03 Kawi ZX-6R VOID 10/10/06, 94 Suzuki GSXR-750 VOID, 85 Yamaha FJ1100 VOID
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