Hydramaster cds 4.8 question

Discussion in 'Modify Truckmounts & Portables' started by CleanerJayCA, Mar 9, 2014.

  1. jwargo1967

    jwargo1967 Well-Known Member

    Nov 13, 2011
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    yeah, I have a friend that had a dodge van, and it was a constant headache as well


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  2. Dedicated

    Dedicated Well-Known Member

    Feb 9, 2012
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    I wouldn't be concerned about the CDS, but the truck with 150K and the 3900 hour from the machine, the van is actually approaching 300K.
     
    • Agree Agree x 1
  3. Royal Restoration

    Mar 3, 2014
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    Montrose, Colorado
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    I would have a mechanic do a check over on the engine. With that many miles and machine hours it could take its tole on an engine.
     
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  4. jwargo1967

    jwargo1967 Well-Known Member

    Nov 13, 2011
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    yeah, I'd have to agree, the truck is pretty much worthless.. if the price is good for the CDs, in other words if that year CDs is worth say $12000 and I have no idea what it would be worth..... Then I wouldn't give more than that plus what you could sell the van for once you get the unit out because the van isn't worth much


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  5. David last

    David last New Member

    Dec 25, 2013
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    I purchased a 2000 gmc 1 ton 2 years ago cds4.8 w salsa $13,000. 150 k, and I love it, turn the key and make money. Oh yeah machine had 5,000 hrs. Runs like a charm. Go for it!
     
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  6. jasdavis09

    jasdavis09 Member

    Oct 5, 2016
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    What do you suggest looking at if suction is low. Around 5 on the Guage under preasure
     
  7. jwargo1967

    jwargo1967 Well-Known Member

    Nov 13, 2011
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    wow, that's low. If it has a factory vacuum relief, it should hit about 14" lift if you cap both ports off.. Either the relief valve needs adjusting because it's leaking too much air, or there is a major vacuum leak somewhere. Look at your waste tank gasket. if it is not intact, you will lose a ton of vac like that. Check anything that taps in to the vacuum pipes for leaks, and the gaskets on the pipes.
    I also had this one time, and the black pipe that went from the waste tank just behind the driver seat was rusted and full of holes.
    Tap on all those pipes to and from the blower. If they aren't solid, replace them. It has to be one of these things( those pipes are gonna rust through every few years).
     
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  8. jasdavis09

    jasdavis09 Member

    Oct 5, 2016
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    Called and spoke to hydra master today and they gave me some solid advice. After plugging both ports my system seems to rise to about 9 maybe a tad over 10. A quivk inspection of my tank lif and the sral seems sokid. I will look at the pipes he hind the driver seat tomrrow as you suggested.
     
  9. jasdavis09

    jasdavis09 Member

    Oct 5, 2016
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    Omg. Guess I need to proof read better. Man. I look like a ELS student.
     
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  10. seagrtj

    seagrtj Well-Known Member

    Jun 28, 2011
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    Did you try adjusting the vac relief spring???
     
  11. jasdavis09

    jasdavis09 Member

    Oct 5, 2016
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    No. Not yet. I will research where to locate it today.
     
  12. seagrtj

    seagrtj Well-Known Member

    Jun 28, 2011
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    it is on the waste tank itself, drivers side
     
  13. jwargo1967

    jwargo1967 Well-Known Member

    Nov 13, 2011
    1,133
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    +703 / 13 / -0
    if it's a few years old, there's a good chance you have holes in the pipes. It took me a couple days before I realized this. I had terribly low vacuum, and got all focused in on a couple tiny voids in my waste tank gasket.. It kept getting worse on a job, then i found it. It's always funny to me that mfgs seem to make every damn thing out of plastic that shouldn't be, then in the one place that plastic would be better, THEN they use metal,lol
     

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