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  1. Dukedog

    Which gasket??Can anyone Tell me what part I need to replace from this video

    looks like more "divider" than power head ta me.. could be power head maybe?..to much water..
  2. Dukedog

    Which gasket??Can anyone Tell me what part I need to replace from this video

    don't forget #3 (tubing, seal).... also check both pieces for any cracks while ya have 'em off............... also if any of tha exhaust ports are really clean ya may need ta take a closer looks at tha pistons and cylinders.........
  3. Dukedog

    Please help trying to check timing

    remove all and leave all tha plugs on their wires then ground tha plugs to tha block.. even number one.. there is a "chance" (not written in stone but) of wipin' out a switch box with ungrounded coils when crankin'.. if it turns over to fast and starter kicks out to early put one at a time back...
  4. Dukedog

    Question about control cable and water separator for carbureted engine

    its ok..............
  5. Dukedog

    Question about control cable and water separator for carbureted engine

    probably was a "quick connect" on tha motor and they jus eliminated it and went straight to tha fuel pump..... losta folks do that. a filter, of any kind, doesn't have any reflection on tha "prime/choke" circuit...........
  6. Dukedog

    1985 Mercury Black Max 150 V6 Water Pump and Base unit

    any that age are if original gearcase.. those two listed are tha only ones made for for tha 2.0, 2.4, 2.5 production V6 merc..
  7. Dukedog

    What could have caused this to happen?

    bullet connectors are notorious for over heating when under a constant load....
  8. Dukedog

    1985 Mercury Black Max 150 V6 Water Pump and Base unit

    if your base measures 2 1/4" (2.245") kit will be # 96148A8... if it measures 2 11/32" close ta 3/8" (2.350") it will be kit # 42579A4
  9. Dukedog

    1985 Mercury Black Max 150 V6 Water Pump and Base unit

    pre-load will have a little pin sticking out tha top of tha drive shaft...
  10. Dukedog

    1985 Mercury Black Max 150 V6 Water Pump and Base unit

    is your gearcase a pre-load?.. what is tha dia. of tha base? should be one of these: 2 1/4" or 2 3/8"
  11. Dukedog

    Ignition Compatibility on 150hp Blackmax

    right on all 4..... triggers, switch boxes, coils are all pretty much same on all of 'em.. some different part numbers but thats about all.... if and/or when ya have a bad switch box its best ta change BOTH at tha same time...... while ya checkin' things "jus 'cause" run it after dark, ona...
  12. Dukedog

    Ignition Compatibility on 150hp Blackmax

    tha ratio will only come inta play with how ya prop it for tha type performance your lookin' for... your set up (motor height, offset, prop), type and weight of your rig will be of tha utmost importance for that... you can determine what ratio ya have by markin prop shaft and flywheel.. with it...
  13. Dukedog

    Ignition Compatibility on 150hp Blackmax

    tha ratio could be different on it.. all 2.0 motors came (normally) came with 2 ta 1 gears.. everything else had 1.87 ta 1's.... only exception was tha XR4 and 6.. they had a smaller "barrel" and 1.78 ta 1 gears... could be tha difference ya seein'.. with tha age of these motors nowdays its not...
  14. Dukedog

    Ignition Compatibility on 150hp Blackmax

    QBhoy... tha orginal poster's motor is a '84 2.0 150 motor with '89 electrics like said.... your motor looks ta be at least a 2.0 135/150 ta at most a 2.4 175.. if heads are correct with year then at least '87.. it will have a build date in tha same place as described above... carb number (WH...
  15. Dukedog

    Ignition Compatibility on 150hp Blackmax

    this one is a little better...
  16. Dukedog

    Ignition Compatibility on 150hp Blackmax

    6568786 is good number.. you have ta put a "0" in front of tha 6568786.. "06568786"... they added tha 0 to all existing and new serial numbers in '90/'91 i believe..... its a '84 2.0 150.. its has electrics from tha '89... mystery solved... chris is close with his rendition of mercs.. they...
  17. Dukedog

    Ignition Compatibility on 150hp Blackmax

    tha # 0C184366 shows ta be a '89 2.4 200 on Mercnet site.. that one is not a 200 for sure.. looks like ya have a hodge podge (jus chargin' system maybe?) of a powerhead??? where did you get tha 0C184366 number?.. tha one in your pictures looks ta be no newer than '86.. could be a 2.0 150 or 2.4...
  18. Dukedog

    Ignition Compatibility on 150hp Blackmax

    tha '89 is a 2.4 200 with a single water cooled reg/rec (very expensive) and matching stator.. tha '92 is a 2.0 motor with tha two reg/rec. and matching stator.. they will not interchange.. i think cdi makes a kit to mix n match tha different chargin' systems though.. never did any of that...
  19. Dukedog

    Poppet Valve Kit for 85 Mercury Black Max 150 hp V6

    you need a water pressure gauge.. it would help with "jus chasin' your tail"..... tha wanting to die could be one or more of many reasons... jmo have ya done a comp test?
  20. Dukedog

    Poppet Valve Kit for 85 Mercury Black Max 150 hp V6

    better question... where did you get 147* stats?..OEM?.. jus curious.. never heard of 'em for a V6?
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