Cummins Water Pump Going Bad? Watch This

All right guys, so this is going to be part one of the mid-range Cummins water pump replacement. So you see we got our new water pump, our new o-ring. We're going to put this water pump on that engine right there. But the first thing we're going to do in part one of the video is talk about coolant recovery. The coolant in this engine is still good. We had just filled it up before we discovered the water pump leak. So what we did is we went down to our Cummins department here at the school, borrowed this thing from them. According to them this machine here costs like five grand and I'm like okay. But this thing is really cool though. It has a hose that comes off of it right here and that hose plugs right in here to that quick disconnect. And then what this guy can do is you can go from vacuum to pressure and you're going to use vacuum to suck it out and then pressure to push all the coolant back in. But one of the key things you got to remember to do is if we come over here to this side of the engine, you're going to notice that we took the overflow cap here off because when you start to pull a vacuum and you're pulling all that fluid out, you got to have the air be able to come in and displace that fluid or else you're going to have a vacuum lock. So I had to change out the quick disconnects because apparently the Cummins guys use a different size than we do. But we got the hose hooked up. We got the valve closed. So really all that's left for us to do is to put this in the vacuum position and then there's a valve right here that once you got that in the vacuum position, you open this valve and it should start pulling the coolant out. So now we can see right now that it's in the vacuum position building up vacuum. It might have to build up a significant amount of vacuum before it actually starts pulling this out. We'll have to wait and see. But you should be able to see it filling in this hose here pretty soon. So now we're starting to see the vacuum is starting to pull it up. So this isn't as fast as I thought it would be. But to be honest, the coolant exchange machine I use in the truck PM's class isn't that fast either. But it is a lot cleaner, less messy than just draining it. It does save you the money of not having to refill it with new coolant. And it does have this gauge here so you can see as it's starting to fill up. So I'm not going to bore you guys with the entire process and I'm running out of time on the clock. So I'm going to have to go here. But I will record part two which is going to be removing the old water pump tomorrow.