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  1. #1
    Member
    Join Date
    Apr 2017
    Location
    Colleyville, TX
    Posts
    575

    No Tell-Tale after water pump replacement: 2017 Mercury 115 Pro XS

    2017 Mercury 115 Pro XS
    Serial# 2B442155Z

    Initially I had a shifting issue which board members helped me resolve.
    It now appears to be shifting properly but I get no Tell-Tale water stream either with the motor submerged in a container of water or with muffs. Is it as simple as possibly drawing air along with the water thus not priming or something else?
    Joe B

    2017 Tracker PT 190 TX
    2017 Mercury 115 Pro XS
    Mercury Spitfire X7 19” prop
    51 mph @ 6240 rpms (RPMs from Vessel View Mobile) : full fuel tank and fishing load by myself
    4.2 second Hole Shot (measured using Vessel View Mobile)
    Engine mounted in 3rd hole
    Minn Kota Ulterra-Link w/built in MDI 80 lb thrust 60” shaft
    Humminbird Helix 12si Gen1 chirp on console
    Humminbird Helix 15si Gen4 cho on bow
    Humminbird Mega360

    Dotline two step transom boarding ladder
    Tracker trailer bow boarding step

  2. Member Mechanic Bob's Avatar
    Join Date
    Jul 2019
    Location
    Wilmington, NC
    Posts
    2,333
    #2
    Don't know if it is possible, but could you have not aligned the tube with the outlet of the water pump when reassembling the lower unit to the midsection?
    2019 RT 198P
    2018 Mercury Pro XS 150 HP 4 Stroke #2B610068
    Twin 12' BT Talons
    4" Atlas Jack Plate
    Riptide Instinct Quest

  3. Member
    Join Date
    Apr 2017
    Location
    Colleyville, TX
    Posts
    575
    #3
    It is my first time doing this so anything is possible Mechanic Bob. I thought about that but will need to pull the lower unit to check. After going through this exercise pulling the lower unit is not as big a job as I initially thought. I'll let you know.
    Joe B

    2017 Tracker PT 190 TX
    2017 Mercury 115 Pro XS
    Mercury Spitfire X7 19” prop
    51 mph @ 6240 rpms (RPMs from Vessel View Mobile) : full fuel tank and fishing load by myself
    4.2 second Hole Shot (measured using Vessel View Mobile)
    Engine mounted in 3rd hole
    Minn Kota Ulterra-Link w/built in MDI 80 lb thrust 60” shaft
    Humminbird Helix 12si Gen1 chirp on console
    Humminbird Helix 15si Gen4 cho on bow
    Humminbird Mega360

    Dotline two step transom boarding ladder
    Tracker trailer bow boarding step

  4. Mercury 3L/4 Stroke/Verado Moderator EuropeanAM's Avatar
    Join Date
    Apr 2008
    Location
    Greenville, SC (US)
    Posts
    95,253
    #4
    Make sure that the drive key for the impeller is in place. Fairly easy to drop it when assembling, and that can definitely cause no water flow.


    Dual Mercury Master Technician- for Mercury Outboards, Mercruiser and Mercury Racing at European Marine in Greenville, SC.
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