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cat 3406c water pump

Discussion in 'Trucks [ Eighteen Wheelers ]' started by countryboy23, Jun 15, 2015.

  1. Jun 15, 2015 #1
    countryboy23

    countryboy23 Bobtail Member

    6
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    Jan 25, 2009
    trumansburg,ny
    0
    Hello everyone,

    I have a 1995 kenworth w900 with a cat 3406c mechanical motor.had an inframe done a little over 200k miles ago. I just recently bought the truck and noticed that I had coolant in my oil. So I started to investigate what the problem is. As I have been reading forums and asking my buddy who works as a heavy truck mechanic to see what procedures I can do to determine what could be the problem I happened to notice that my weep hole on my water pump had a rubber plug in it. Would this cause a seal to blow out and leak in to the front engine cover? Here is a picture of what I found.
     

    Attached Files:

    countryboy23, Jun 15, 2015
    countryboy23, Jun 15, 2015
    #1
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  3. Jun 15, 2015 #2
    mtoo

    mtoo Road Train Member

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    Retired on bended knee
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    I know it can be several things but. For me and cats, it has always been oil in radiator = oil cooler. coolant in oil = liner. bubbles in radiator = head gasket, I have no idea what a plug in the weep hole would do.

    Someone will tell us.
     
    Last edited: Jun 15, 2015
    mtoo, Jun 15, 2015
    mtoo, Jun 15, 2015
    #2
  4. Jun 15, 2015 #3
    swaan

    swaan Road Train Member

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    BC canada
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    If some idiot went to that extent by putting a plug in the weep hole to stop coolant from coming out. Then yes that would be your problem .
    Put a new pump on it asap

    That weep hole is there so you don't get coolant in your oil when your water pump packs it in.

    Geez I thought I've seen it all but I guess not
     
    swaan, Jun 15, 2015
    swaan, Jun 15, 2015
    #3
    countryboy23 Thanks this.
  5. Jun 15, 2015 #4
    countryboy23

    countryboy23 Bobtail Member

    6
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    Jan 25, 2009
    trumansburg,ny
    0
    That's what I wanted to hear.
    Thank you .
     
    countryboy23, Jun 15, 2015
    countryboy23, Jun 15, 2015
    #4
  7. Jun 15, 2015 #5
    bigguns

    bigguns Road Train Member

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    Jun 13, 2013
    Omega,GA
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    That is sop for idiots. I know a man who did just that. He had a leaky water pump so he sooo wisely plugged the weep hole which caused the coolant to run straight down into the oil pan. It cost him a rebuild. I suggest you change the water pump. If you don't know this heed a word to the wise - DO NOT DROP the water pump even when boxed as you may well end up putting another one on. I would also change the oil and filters. If the engine does not have a water filter, I would put one on.
     
    bigguns, Jun 15, 2015
    bigguns, Jun 15, 2015
    #5
  8. Jun 15, 2015 #6
    315wheelbase

    315wheelbase Heavy Load Member

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    Oct 26, 2014
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    head gasket
     
    315wheelbase, Jun 15, 2015
    315wheelbase, Jun 15, 2015
    #6
  9. Jun 15, 2015 #7
    wore out

    wore out Numbered Classic

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    CHASIN THE DEVIL'S HERD
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    Do the right thing before you spend a dime. Pull the pan and pressure the radiator it needs new oil anyway. What you wanna hear could be far from the problem
     
    wore out, Jun 15, 2015
    wore out, Jun 15, 2015
    #7
    bigguns, countryboy23 and rollin coal Thank this.
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