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Gator48's avatar
Gator48
Explorer
Jun 26, 2016

Replacing water pump

Any one here ever replace a water pump on a 2006 Cummins ISL engine?
Ours is leaking, and it looks pretty easy to get to and only 3 bolts holding it on. We have a side radiator so only have to move a few accessories. The coolant was recently tested and is good so I was thinking of re-using it. If I drain about half out would the level be mostly below the water pump.

Seems easy enough......what am I not seeing??

Thanks
  • Gator48 wrote:
    Well Mountain Aire was right!!!!

    3 hours of my time, and $315.00 in parts. Job done everything is working fine. Total savings over $1200.00!!!!!!

    No way it would be so easy with a rear radiator though. I was a little uneasy before starting on it, but literally 5 bolts to remove the water pump (3) and thermostat (2).

    just thought you would like to know.


    Gator48,
    Makes you feel pretty good huh? Yep, been there, done that, most of my life. Especially on motorhomes. I just finished, last night, a repair on a bedroom slide hydraulic ram that was leaking. It was one serious pain in the a$$ to extract and re-install but, two things.

    One, I'm retired, and have the time, almost no matter how long a project takes.

    Two, As long as I have the time, the tools, the ability and, the drive, I still like saving money and learning how things work. On this repair, I calculate I saved in the neighborhood around $500-$600 on that repair alone. Then, while my wife was there helping me, she noticed that the slide topper above the bedroom slide, WAS GONE!! I mean, even when the coach is in the garage, you can still see the leading edge of it, attached to the coach. It wasn't there!!

    Hmmmm, well, long story short, it had come un-sewn. It was wrapped up on the tube. Well, down came the tube and, off came the Sunbrella slide topper. I noticed other threads on that piece were also un-raveling. So, out came my industrial sewing machine and, I went to work.

    The next day, it was all back together and back on the coach. I have no idea what an RV dealer would have charged me for that. I suspect, they would have tossed the existing topper and ordered up a new one and, charged appropriate labor for the removal and install of a new one.

    Anyway, nice job on your repair and saving of money. Now you can buy more diesel for upcoming trips.
    Scott
  • yes you are on the right track drain enough fluid out to a point just below the water pump.
    i just did mine in my 3126 but it was a bit more had to replace the rad it was rotten so i replaced a bunch of stuff
    i re used my fluid as well as it was new a year prior , if possible use the red stuff its good for 5-6 years its considered long life the green is about 2-3 years
  • Well Mountain Aire was right!!!!

    3 hours of my time, and $315.00 in parts. Job done everything is working fine. Total savings over $1200.00!!!!!!

    No way it would be so easy with a rear radiator though. I was a little uneasy before starting on it, but literally 5 bolts to remove the water pump (3) and thermostat (2).

    just thought you would like to know.