Reverso Impeller Replacement Part

Discussion in 'General Maintenance/Repair Questions' started by Prosideus, Aug 3, 2013.

  1. Prosideus

    Prosideus Active Member

    632
    Jun 5, 2012
    Franklin, TN - Old Hickory Lake
    Currently None. Playing Golf
    Prior Boat:
    400 Sedan Bridge 1996 Cats 3116
    Cats 3116
    I have all the supplies needed to do my first oil change on my 3116s. 14 gallons of oil, oil filters, oil sample kits, two extra five gallon buckets, strap wrench, celebration cigar.

    However, my research on this site had me concerned about my reverso impeller. The boat is 2.5 hours away and I don't know the model number. So I am wondering if there is a generic impeller part number (like jabsco, etc.) that anyone has as a replacement impeller for my circa 96 Reverso unit?

    Help appreciated.

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  2. CRUZ'N

    CRUZ'N New Member

    216
    Jan 2, 2013
    Annapolis
    2007 60DA
    13' Apex Dinghy 40 hp Merc
    1100 MAN V10 / ZF V- drives,
    21 KW ONAN
    " Pro " hopefully this helps... It's been a standard for a while, but if you actually need it for assurance because of travel time, # 360010. Don't forget a new gasket... Good luck, Tim
     
  3. Boat Guy

    Boat Guy Well-Known Member

    Good luck.... I'll be following your lead.
     
  4. ttmott

    ttmott PhD in OCD GOLD Sponsor

    Apr 3, 2012
    Space Coast Florida
    2006 52 Sedan Bridge
    Cummins QSM11
    I changed mine as a pert of baselining the boat when we got it. The gasket is the tricky part it is rubber and will "extrude" out of the sealing area if there is any oil on the sealing surfaces or the screws are over tightened; it is not captured like a O-ring would be. The unit will have quite a bit of oil in it so put something under it when you remove the cover. Clean all oil from the cover and body where the gasket goes and wipe with IPA; it must be clean and dry fot the gasket tot stay in place. Do not under any circumstance use a gasket sealer.
     
  5. peterkvs

    peterkvs Member

    511
    Nov 11, 2012
    Guntersville, Alabama
    400 Sundancer 1999
    3116 Cats, 1000 hours
    I hope that you are a midget. I had to get a friend to change mine because I could not get down to it. If the impeller in the motor is not completely intact, you will have to find and fish out all the missing blades otherwise they will get sucked back into the pump and kill it or get pumped into your motor which would not be good. Clean the whole pump with brake parts cleaner, make sure you put a light coating of oil on the impeller when you install it. I hope that you are using Cat Special Application Engine Oil Straight 40 wt, and Cat filters. It is the only oil that should be used in the 3116.

    Good Luck, Pete
     
  6. Prosideus

    Prosideus Active Member

    632
    Jun 5, 2012
    Franklin, TN - Old Hickory Lake
    Currently None. Playing Golf
    Prior Boat:
    400 Sedan Bridge 1996 Cats 3116
    Cats 3116
    Quick update. I bailed on doing the oil change. Wednesday I am moving the boat 400 miles. I will do the oil change after the trip when I have a spare impeller for the Reverso pump. Since I could not get one on hand, I couldnt risk getting halfway through and being stuck.

    So, I will update with all the details when I do the deed. Thanks to everyone for providing the info. It will come in handy.


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  7. The Bill Collector

    The Bill Collector Well-Known Member GOLD Sponsor

    Jun 2, 2008
    Tacoma, WA
    1998 450 Sundancer, Achilles dinghy
    3126 Cat's
    ok, help me out here... I was under the impression the oil change pump has a metal impeller in it.. ?
     
  8. Prosideus

    Prosideus Active Member

    632
    Jun 5, 2012
    Franklin, TN - Old Hickory Lake
    Currently None. Playing Golf
    Prior Boat:
    400 Sedan Bridge 1996 Cats 3116
    Cats 3116
    Bill Collector, you may be right.

    As a further update I arrived at the boat only to find I have a groco oil change system and not a reverso system. So groco may indeed have a metal mpeller. Anyone else able to comment on that?


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  9. ttmott

    ttmott PhD in OCD GOLD Sponsor

    Apr 3, 2012
    Space Coast Florida
    2006 52 Sedan Bridge
    Cummins QSM11
    The Reverso is a rubber impeller the Groco is a gear-rotor. The impeller and cover gasket are service items for Reverso and the cover seal and shaft seal are service items for the Groco. The gears in gear-rotor pumps are not normally a wear item; I would get the Groco service kit and keep it on the boat but not mess with the pump unless it's leaking.
     
  10. Ray 40

    Ray 40 New Member

    105
    May 11, 2009
    La Conner, WA
    1997 400 Sedan Bridge w/ lower helm
    3116 Cats
    3116 Cats.-
    8 kw Westerbeke
    I found out my Groco Oil Change pump has a white plastic/man made material type impeller that has removeable veins/fins (4-sell as a set) and a hub (?) that the veins fit into. Groco sells the parts (in stock). For both I recall it was near $30.00.
     
  11. Cocktail Time

    Cocktail Time Active Member SILVER Sponsor

    879
    Jul 9, 2007
    Lake Lanier, GA
    1998 400 Sundancer, Garmin 840xs GPS, Furuno RDP-110, B&G GPS pilot etc.
    Cat 3116's, Westerbeke 7.6kw
    Reviving an old thread. Anyone have a picture of their Groco pump? I want to order a spares kit and always thought I had a reverso OP-6 but looking at their website, my pump doesn't have a cover at all. It has a manifold, and a black pump motor that is uncovered. Thanks!
     

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