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Thread: VRO Johnson

  1. #1

    Question VRO Johnson

    Hello,
    First, sorry for my bad English. I'm French And I'm not very confortable with English language


    I have just acquired a 40hp Johnson engine (2000)
    BJ40ESSM


    It starts very well. But I have a problem.
    I donít know where to connect the electrical cable of the oil tank.
    Thereís no plug on my engine.
    However, I see two cables at the back, the same color as the oil tank cable. Is that it? I sent you pictures.



    And what does mean "do not connect wires to battery internal tank" ?

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    Thank you so much for your help !!!
    Damien

  2. #2
    Join Date
    Feb 2001
    Location
    Central West Florida
    Posts
    15,785

    Default Re: VRO Johnson

    Wire from oil tank resembles lamp corn... one smooth, the other has ridges (usually). Memory has it that smooth connects to engine ground... ridged one connects to any of the "Tan" sensor wires.
    We occasionally have questions. If you fail to answer, it may affect ours.

  3. #3
    Join Date
    Jun 2013
    Location
    Duluth Mn
    Posts
    2,465

    Default Re: VRO Johnson

    Thanks and welcome back Joe. Not the same here without you.

  4. #4

    Default Re: VRO Johnson

    Thank you so much Joe ! It's nice !

    By chance, if someone has the technical manual of this johson 40 hp (2000) I will. thank you all !
    The French

  5. #5
    Join Date
    Sep 2010
    Posts
    18,492

    Default Re: VRO Johnson

    Is the oil injection system in service ?-----Bypassed , yes , no or not sure ?-----Mix at 50:1 if you are not sure of the status at this time !

  6. #6

    Default Re: VRO Johnson

    Quote Originally Posted by racerone View Post
    Is the oil injection system in service ?-----Bypassed , yes , no or not sure ?-----Mix at 50:1 if you are not sure of the status at this time !
    Hi Racerone. I havenít restarted the engine yet.
    In the meantime, some advised me to remove the VRO. I think sailing with a mix actually, it will be safer.

  7. #7
    Join Date
    Feb 2001
    Location
    Central West Florida
    Posts
    15,785

    Default Re: VRO Johnson

    Quote Originally Posted by LaGuille View Post
    I haven’t restarted the engine yet... Some advised me to remove the VRO... I think running with a mix actually will be safer.
    If the fuel pump portion of the VRO is functional, use it as a straight 50/1 mixture fuel pump as follows:
    ********************
    (VRO Pump Conversion To Straight Fuel Pump)
    (J. Reeves)

    You can convert the VRO pump into a straight fuel pump, eliminating the oil tank and VRO pump warning system, but retain the overheat warning setup (and fuel restriction warning if so equipped) by doing the following:

    1 - Cut and plug the oil line at the engine so that the oil side of the VRO pump will not draw air into its system. Trace the wires from the back of the VRO to its rubber plug (electrical plug) and disconnect it.

    2 - Trace the two wires from the oil tank to the engine, disconnect those two wires, then remove them and the oil tank.

    3 - Mix the 50/1 oil in the proper amount with whatever quantity fuel you have. Disconnect the fuel line at the engine. Pump the fuel primer bulb until fuel exits that hose with the tint of whatever oil you used. Reconnect the fuel hose.

    That's it. If you want to test the heat warning system to ease your mind, have the key in the on position, then ground out the tan heat sensor wire that you'll find protruding from the cylinder head. The warning horn should sound off.

    ********************
    We occasionally have questions. If you fail to answer, it may affect ours.

  8. #8

    Default Re: VRO Johnson

    Thank you so much Joe !

    I understood everything. Point 1, 2 ans 3 ! That's clear.
    But, I understood nothing about the last point hahaha
    My English and my motor knowledge are limited

    Can you explain me what is "ground out the tan heat sensor wire that you'll find protruding from the cylinder head" please ??? Thank you so much

  9. #9
    Join Date
    Jun 2013
    Location
    Duluth Mn
    Posts
    2,465

    Default Re: VRO Johnson

    On the cylinder head there is a sender unit and to test the overheating system warning light or buzzer, you simply briefly ground that wire out with the ignition key in the on/run position.

  10. #10

    Default Re: VRO Johnson

    Quote Originally Posted by timguy View Post
    On the cylinder head there is a sender unit and to test the overheating system warning light or buzzer, you simply briefly ground that wire out with the ignition key in the on/run position.
    Thank you timguy, I understand now. Just... Where is the ground in this engine ? I prefer to ask

  11. #11
    Join Date
    Jun 2013
    Location
    Duluth Mn
    Posts
    2,465

    Default Re: VRO Johnson

    Hi, any metal part on the block or like for instance a head bolt.
    Last edited by timguy; 03-01-2020 at 01:49 PM. Reason: Typo

  12. #12

    Default Re: VRO Johnson

    Quote Originally Posted by timguy View Post
    Hi, any metal part on the block or like for instance a head bolt.
    Allright. Thank you

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