1947 Mercury KE4 lower unit

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    goldmember


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    #172759

    I just got done re-assembling the water impeller case, impeller, cover etc. re-placed the gear grease with the specified correct lube and now I have a trickle of grease coming out of the intake slots. I put in all new seals and washers correctly but there is an oil seal ring on the lmpeller lower case that I didn’t replace because I was told it was no longer available.

    Any ideas?

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    garry-in-michigan

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    #172769

    The grease will cause the pump rotor to swell rendering it useless. Go to a bearing parts house and find a seal to match the prop shaft size. Hopefully there will be enough material to machine the pump housing to fit the new seal.

    mercuryman
    mercuryman

    US Member - 1 Year
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    #172782

    You can use a SKF seal 5569 For sale Amazon $6.72

    • This reply was modified 11 months, 3 weeks ago by mercurymanmercuryman.
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    goldmember


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    #172842

    Thanks I’ll try that

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    goldmember


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    #172843

    Will the SKF 5569 fit into the water pump cartridge?

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    green-thumbs

    US Member - 1 Year
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    #172908

    Seal catalog will indicate in BOLD numbers the standard general purpose seal for each
    shaft size and seal diameter and height. Unless the application requires a nonstandard seal
    go with the common least expensive seal.

    The new seal will work if the shaft is smooth, round and concentric to seal lip.

    5569 is for a .999 bore and is .219 high
    26 – 20590 is Mercury part # for oil seal for water pump

    mercuryman
    mercuryman

    US Member - 1 Year
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    #172910

    I believe you must pull out the waterpump cartridge to change the seal, I haven’t done on KE4 but on KF7 you must pull. You will need to make a puller.

    Tubs
    Tubs

    US Member - 1 Year
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    #172925

    This is what I put together to get a pump cartage out.

    mercuryman
    mercuryman

    US Member - 1 Year
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    #172939

    One picture is worth a 1000 words.

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    goldmember


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    #172949

    Nice. I made one as well. Not as fancy but it works.

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    goldmember


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    #172950

    Getting the impeller out is a real pain. How do you do it without destroying the impeller?

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    dave-bernard

    US Member - 2 Years
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    #172952

    2 screw drivers at 180 degrees and pry.

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    goldmember


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    #172953

    Do you pull out the cartridge and the impeller together?

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    dave-bernard

    US Member - 2 Years
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    #172964

    No . you can pull the shaft and pump assy. in one piece.

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    goldmember


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    #172999

    What do you mean by “shaft”? if you mean the prop shaft, please explain how you do that without removing the pump impeller cartridge first.

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