Cat Pump 340HT on Prochem 405 leaking both oil and water??

Discussion in 'Ask Our Repairmen' started by johnny916, Mar 11, 2011.

  1. johnny916 Member

    Member Since:
    Sep 26, 2010
    Message Count:
    720
    Location:
    CA
    Ratings Received:
    +43 / 3 / -0
    Real Name:
    John A
    Business Location:
    United States
    I saw Rob's video on what to do with the low pressure seals if I'm seeing water but I'm also seeing oil coming from around the top! What seals do I need for that repair?

    IMG_5115.jpg
    johnny916, Mar 11, 2011
    #1

  2. Kevin Dumas Member

    Member Since:
    Aug 31, 2008
    Message Count:
    980
    Location:
    Binghamton, NY
    Ratings Received:
    +194 / 0 / -0
    Real Name:
    Kevin Dumas
    Can't tell a thing from that picture.
    Oil doesn't usually leak around the top unless it is coming out the cap
    and that is usually due to overfilling or the wrong type of oil.
    Kevin Dumas, Mar 11, 2011
    #2

  3. johnny916 Member

    Member Since:
    Sep 26, 2010
    Message Count:
    720
    Location:
    CA
    Ratings Received:
    +43 / 3 / -0
    Real Name:
    John A
    Business Location:
    United States
    Here's some better pictures.. As you can see, there's oil sitting near those silver grooves.. IMG_0194.jpg IMG_0193.jpg IMG_0195.jpg

    Also note the oil level, does it look overfilled? I've never added any oil to it.
    johnny916, Mar 11, 2011
    #3

  4. Nutstyle Member

    Member Since:
    Jul 25, 2009
    Message Count:
    542
    Location:
    FL
    Ratings Received:
    +80 / 0 / -0
    Real Name:
    Alberto Rivero
    Business Location:
    United States
    The cap must have a level to tell you the max and min of the oil. And also make sure the oil is from the cat pump and not from other part of the TM. Clean it up good and pay attention as soon as you assemble it to see where it is leaking from.
    Nutstyle, Mar 11, 2011
    #4

  5. Kevin Dumas Member

    Member Since:
    Aug 31, 2008
    Message Count:
    980
    Location:
    Binghamton, NY
    Ratings Received:
    +194 / 0 / -0
    Real Name:
    Kevin Dumas
    The red fill cap should have a large o-ring around it to seal the threads...and
    there is a plastic site gauge with a dot in the middle of it in the rear of the pump.
    Fill with cat oil to the dot in the center of the site gauge.
    Kevin Dumas, Mar 11, 2011
    #5

  6. johnny916 Member

    Member Since:
    Sep 26, 2010
    Message Count:
    720
    Location:
    CA
    Ratings Received:
    +43 / 3 / -0
    Real Name:
    John A
    Business Location:
    United States
    Can anyone look at this and determine which seals I need? I'm always seeing water at the bottom of my machine so I'm pretty sure I need the low pressure seals?

    But a guy a Proline said there's a hard part on the Cat Pump that might leak too..


    IMG_5173.jpg IMG_5171.jpg IMG_5169.jpg IMG_5172.jpg IMG_5170.jpg
    johnny916, Mar 11, 2011
    #6

  7. davenjai Member

    Member Since:
    Dec 16, 2009
    Message Count:
    814
    Location:
    Peachtree City, GA
    Ratings Received:
    +232 / 0 / -0
    Real Name:
    David Tassa
    Business Location:
    United States
    The cat 340 takes exactly one pint bottle of cat oil after draining.
    davenjai, Mar 12, 2011
    #7

  8. davenjai Member

    Member Since:
    Dec 16, 2009
    Message Count:
    814
    Location:
    Peachtree City, GA
    Ratings Received:
    +232 / 0 / -0
    Real Name:
    David Tassa
    Business Location:
    United States
    You really need to clean things up before disassembly. Those ceramic plungers (the long round tubes) do not like a bunch of differant crap on them.

    If you clean and reassemble,
    remove the clutch,
    spray the pump with a can of powdered under arm deodorant,
    you can then use a drill to run the pump.

    The powder will show you where the leaks are originating from.

    OR, just take it to a dealer and tell them to change the seals.
    davenjai, Mar 12, 2011
    #8

  9. johnny916 Member

    Member Since:
    Sep 26, 2010
    Message Count:
    720
    Location:
    CA
    Ratings Received:
    +43 / 3 / -0
    Real Name:
    John A
    Business Location:
    United States
    wow that's a nice tip, will Old Spice work?

    By the way, I suppose I'm going to have to connect the inlet with water correct?
    johnny916, Mar 12, 2011
    #9

  10. davenjai Member

    Member Since:
    Dec 16, 2009
    Message Count:
    814
    Location:
    Peachtree City, GA
    Ratings Received:
    +232 / 0 / -0
    Real Name:
    David Tassa
    Business Location:
    United States
    Does old spice leave a white powdery film? The drill will spin it pretty slow. You just need a little bit of water.
    davenjai, Mar 12, 2011
    #10

  11. johnny916 Member

    Member Since:
    Sep 26, 2010
    Message Count:
    720
    Location:
    CA
    Ratings Received:
    +43 / 3 / -0
    Real Name:
    John A
    Business Location:
    United States
    I'll look for one that day, but I'm thinking of just putting it back together.. It's rather easy to take off later anyway but **** I spent too much all belts, bolts, welding, drip tray, etc..
    johnny916, Mar 22, 2011
    #11

  12. johnny916 Member

    Member Since:
    Sep 26, 2010
    Message Count:
    720
    Location:
    CA
    Ratings Received:
    +43 / 3 / -0
    Real Name:
    John A
    Business Location:
    United States
    Ok I figured out that my cat pump is leaking from the sight opening on top of the red cap! So why would they even put a hole there if it's going to leak like that??

    What remedy can I do for that?
    johnny916, Mar 31, 2011
    #12

  13. spotman123 Active Member

    Member Since:
    Jan 3, 2010
    Message Count:
    1,175
    Location:
    new york
    Ratings Received:
    +214 / 0 / -0
    Real Name:
    spot man
    Business Location:
    United States
    The little hole on the red cap on top of the crankcase acts as a vent to relieve normal pressure in the crankcase. If the crankcase is overfilled, or the pump is not on a level surface or water has gotten into the oil, spitting out the oil(red cap) cap can occur. It also reduces air bubbles in the crankcase which can lead to false level readings. I would NOT recommend plugging this hole!
    spotman123, Mar 31, 2011
    #13

Share This Page

Users found this page by searching for:

  1. cat pump leaking oil

    ,

  2. cat pump water in oil