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TECHNICAL MOTOBRICK WRENCHING In Remembrance of Inge K. => The Motobrick Workshop => Topic started by: nrussell on May 05, 2017, 08:21:44 PM

Title: Coolant leak in
Post by: nrussell on May 05, 2017, 08:21:44 PM

Hello!
Very nice forum. I have read and learned a lot.
Thank you very much in advance.
Today  after 15 minutes way to work, I discovered a coolant leak/drip in my 94' K1100RS. It stops when engine get cold.
Later in home (cold engine), I open the radiator cap and the leak start driping (video (https://youtu.be/HR5bAHe2Tlg)). Puting the cap again and the driping stops.
What would you do?
What is the name/part number of the leaking piece?
I'm posting a video and 2 pictures for your reference.

https://youtu.be/HR5bAHe2Tlg (https://youtu.be/HR5bAHe2Tlg)

(https://lh5.googleusercontent.com/UGfVZsFP2zQIeE5BqHX-TiyIGy_3ooNRG2OqCEJybHEjbD7NjIXwI3aIWAE8DT-WJl9BEyy5=w1600-h794-rw)


(https://lh6.googleusercontent.com/9Ff5ppDCwRcqCLzXKflvmuFWp160lYXeBhGPbabZIK-bzIP6dxo6n63Cg1pRbbVd40bVD30q=w1600-h794-rw)

Best regards,
Nicolás

Title: Re: Coolant leak
Post by: nrussell on May 05, 2017, 08:40:01 PM

Sorry for the mess with the video.
Here are the pictures
(https://preview.ibb.co/eHcxy5/20170505_183659.jpg)


(https://preview.ibb.co/mKg1Qk/20170505_183730.jpg)

Title: Re: Coolant leak in
Post by: jakgieger on May 05, 2017, 08:47:02 PM

Your head is different than my 2v head, but that sure looks like a soft or freeze plug (https://www.youtube.com/watch?v=Cru1X9hbZ20).  A very easy repair if you can get a straight shot to put the new one in.  Good luck!

Title: Re: Coolant leak in
Post by: Laitch on May 05, 2017, 09:14:10 PM

If one is leaking, any others should be replaced, too, even if they are not leaking yet. When the old one is removed, clean out the debris from the block; smooth off the edge of the hole with emery cloth then install the replacement. Flush the coolant system when you are finished then add fresh coolant in the correct proportion with distilled water for your climate.

Title: Re: Coolant leak in
Post by: nrussell on May 06, 2017, 08:37:53 AM

Thank you very much Jack and Laitch.
I have removed the plug and it has a little hole in there. I'm know going to buy a new one.
BR(https://uploads.tapatalk-cdn.com/20170506/27ead5df48b7b404ae235660249db7c0.jpg)(https://uploads.tapatalk-cdn.com/20170506/773d36e9c0023567db6f32854c63459b.jpg)(https://uploads.tapatalk-cdn.com/20170506/4b229069e551aa49d113abb15f43214a.jpg)

Enviado desde mi SM-J710F mediante Tapatalk

Title: Re: Coolant leak in
Post by: jakgieger on May 06, 2017, 08:45:11 AM

To show your appreciation, how about posting a picture of that red k1100 rs in your avatar!!  :bmwsmile

Title: Re: Coolant leak in
Post by: Laitch on May 06, 2017, 09:04:26 AM

Quote from: jackgeiger on May 06, 2017, 08:45:11 AM

. . . how about posting a picture of that red k1100 rs in your avatar!!  :bmwsmile

That's a cheerful avatar!

Is that oxidation around the rim of the engine block freeze plug opening?

Title: Re: Coolant leak in
Post by: nrussell on May 06, 2017, 09:05:18 AM

Of course!
I think it was already on the avatar. I'm going to double-check. But here it is my red k11rs.(https://uploads.tapatalk-cdn.com/20170506/cebee9b3cf1918e6b935f8603e121204.jpg)

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Title: Re: Coolant leak in
Post by: Laitch on May 06, 2017, 09:19:01 AM

Quote from: nrussell on May 06, 2017, 09:05:18 AM

Of course!
But here it is my red k11rs.

Breathtaking!  :yes

Title: Re: Coolant leak in
Post by: jakgieger on May 06, 2017, 12:29:35 PM

Very nice!

Title: Re: Coolant leak in
Post by: nrussell on May 06, 2017, 08:48:12 PM

Job finished.
22mm freeze plug.
Thanks!(https://uploads.tapatalk-cdn.com/20170507/25932afb5a5c81121c8b8f5124454e07.jpg)(https://uploads.tapatalk-cdn.com/20170507/397cd784591aa1a9fe0f41cb0b05a54b.jpg)

Enviado desde mi SM-J710F mediante Tapatalk