Ducati Monster Forum

Moto Board => Tech => Topic started by: lazylightnin717 on April 30, 2012, 06:20:12 PM

Title: Flushing the coolant system
Post by: lazylightnin717 on April 30, 2012, 06:20:12 PM
Waiting for a few shims to come in before I can put the bike back together.

In the meantime, I'd like to take care of a few other things.

While I had the heads off, I couldn't help but notice some nasty shit in the areas where coolant flows through. Figure I should go ahead and try to flush that outta' there.

For all you 4 valve guys, what has been the best way to do it?
Title: Re: Flushing the coolant system
Post by: ducpainter on May 01, 2012, 03:05:05 AM
I just used plain water to flush and drained it from the pump several times. You could use a chemical flush safe for aluminum.

The crud is from the steel pieces in the system.

Once I started maintaining the system the crud stopped appearing
Title: Re: Flushing the coolant system
Post by: lazylightnin717 on May 01, 2012, 02:21:33 PM
Is the entire loop open all the time?

The pump is constantly spinning with the rotation of the motor right?

Sounds like there is nothing special about it. Flush it out and be merry  ;D
Title: Re: Flushing the coolant system
Post by: ducpainter on May 01, 2012, 02:23:39 PM
Quote from: lazyjinglin717 on May 01, 2012, 02:21:33 PM
Is the entire loop open all the time?

The pump is constantly spinning with the rotation of the motor right?

Sounds like there is nothing special about it. Flush it out and be merry  ;D
It wasn't running.

I just filled and drained several times
Title: Re: Flushing the coolant system
Post by: lazylightnin717 on May 01, 2012, 02:34:27 PM
Mine won't be running. I just want to make sure that there isn't a valve anywhere that opens with high temps to allow the system to flow
Title: Re: Flushing the coolant system
Post by: ducpainter on May 01, 2012, 02:53:35 PM
Quote from: lazyjinglin717 on May 01, 2012, 02:34:27 PM
Mine won't be running. I just want to make sure that there isn't a valve anywhere that opens with high temps to allow the system to flow
Oh...

No valve besides the t-stat which won't prevent draining.

There are spots in the cylinders that don't drain. That's why multiple fill/drains are required.
Title: Re: Flushing the coolant system
Post by: lazylightnin717 on May 01, 2012, 02:59:40 PM
Sounds good

Thanks!