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  1. #1
    Join Date
    Dec 2012
    Location
    price south australia
    Posts
    8

    Default old tohatsu M70a

    hi
    i a newby and this is my first post and i have just made a big mistake i have brought a old m70a motor i was told that the only thing wrong with the motor was that it need a water pump kit its a(m70a 1979)
    so i contacted the dealers and was put thought to a dealer in NSW Australia that might have the parts i require and was told that i was flogging a dead horse as the part are no longer available
    now thats a real problem as i have a grandson who wants to learn how to fish and the motor was a replacement for one that was playing up
    is nthere anyone that can help me out or put me in the right direction to find these parts or is there a aftermarket water pump kit that i can by

  2. #2
    Join Date
    Aug 2017
    Location
    South Africa
    Posts
    94

    Default Re: old tohatsu M70a

    Did you contact Neptune marine?

  3. #3
    Join Date
    Dec 2012
    Location
    price south australia
    Posts
    8

    Default Re: old tohatsu M70a

    no not yet will neptune marine be able to help?

  4. #4
    Join Date
    Aug 2017
    Location
    South Africa
    Posts
    94

    Default Re: old tohatsu M70a

    Yes, they still import 2-strokes so maybe they will be able to source you an impeller for you model.

  5. #5
    Join Date
    Dec 2012
    Location
    price south australia
    Posts
    8

    Default Re: old tohatsu M70a

    picked u a impella on ebay right part number all
    could have found a winner will know when it arrives next week
    used the neptune part catolug to find the part number
    thanks for the help most apreacheated
    ronnie

  6. #6
    Join Date
    Mar 2010
    Location
    Buffalo, NY, USA
    Posts
    2,054

    Default Re: old tohatsu M70a

    IMPELLER : 45A2 ~ 70A2


    DescriptionImpeller only.

    Fits:

    45A2, 50C, 55B, 60A, 70A & 70A2 2-stroke models

    Part #: 353650210M
    List Price (MSRP): $38.50

    Still available new.

    Paul
    Buffalo NY USA

  7. #7
    Join Date
    Dec 2012
    Location
    price south australia
    Posts
    8

    Default Re: old tohatsu M70a

    well i have the empeller fitted it and it still wont pump water
    i have stripped the pump and used sillicon gasket gue for the gaskets and cleaned all services
    it still wont pump water
    disconected the tell tail from the block and its blowing air only
    what have i done wong
    i then flushed the motor by conecting a hose to the motor water pump outlet pipe and its not blocked
    i then flushed the bottom of the leg and its working ok
    it still wont pump water
    the impeller is the right one by part number its the right one
    it still wont pump
    i am suffed
    wonnie

  8. #8
    Join Date
    Mar 2010
    Location
    Buffalo, NY, USA
    Posts
    2,054

    Default Re: old tohatsu M70a

    Do you have the key installed? Is the water pipe inserted in the grommet?
    Last edited by pvanv; 09-20-2017 at 08:12 AM.
    Paul
    Buffalo NY USA

  9. #9
    Join Date
    Dec 2012
    Location
    price south australia
    Posts
    8

    Default Re: old tohatsu M70a

    yes the water pipe is connected to the grommet i have greased the grommet and seen grease on the pipe so they are connecting
    i have the key installed and there is some rubber like gunge in the impeller on the key
    i have been wondering if the shaft is turning with out the impella turning as well
    that the only answer i have
    can the key be warn or how do i make it tighter on the sharft
    thanks any the help
    wonnie

  10. #10
    Join Date
    Aug 2017
    Location
    South Africa
    Posts
    94

    Default Re: old tohatsu M70a

    By key you mean the spline that keeps the impellar to the shaft? If you feel it is worn out it is easy to engineer a new one.

  11. #11
    Join Date
    Dec 2012
    Location
    price south australia
    Posts
    8

    Default Re: old tohatsu M70a

    hi
    well water pump is now working problem with the pin i think
    well pumping water out through bottom drain hole witch tells me that the pipe connection to the motor is not connecting
    am wondering if i can fit and extension to the pipe to connect to the pump using copper pipe will try tomorrow
    wonnie
    ps i am wondering if this is all worth it

  12. #12
    Join Date
    Dec 2012
    Location
    price south australia
    Posts
    8

    Default Re: old tohatsu M70a

    could have the pipe to the motor not conecting

  13. #13

    Default Re: old tohatsu M70a

    check the pee hole. it is small and can get blocked.

  14. #14
    Join Date
    Dec 2012
    Location
    price south australia
    Posts
    8

    Default Re: old tohatsu M70a

    disconnected the tell tail and no water is coming out of the heads
    water is coming out of the lower crank case some were as water is coming from the bottom of the motor well around the engin
    if i plug the water coming from the water leg side the water will come out of the top exhaust but now were else

  15. #15
    Join Date
    Mar 2010
    Location
    Buffalo, NY, USA
    Posts
    2,054

    Default Re: old tohatsu M70a

    Sounds as though the water pipe is not connected properly.
    Paul
    Buffalo NY USA

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