Search results

  1. M

    5 Volts at the "+" side of ignition coil ?

    1966 2.5L 4 cylinder Mercruiser. At the ignition coil I have ground on the "-" side post when the key is turned to the off position. When I turn the key to the on position I loose ground. I am getting 12Volts on the "+" side post. I verified this by taking my DMM red lead attached to the "+"...
  2. M

    Ignition switch test ?

    I believe my ignition switch is bad. I have a Multi Meter to test it, I've never really used a multi meter but I went a bought a decent one. How can I test my ignition switch to find out if it is bad? Also how can I test my ignition coil to tell if it is bad ? My overall problem is that I'm not...
  3. M

    Electrical issue ?

    I recently bought this boat, 1966 sterncraft with a 2.5L Mercruiser 4 cpl and when I got it I noticed a bunch of wires out of place and terrible looking. I ripped out all of the wiring and started running new wires and ends. I have the engine/gages wiring diagram for this engine set-up and...
  4. M

    No spark at the plugs, help ?

    I am not getting any spark on any of my 4 spark plugs, it has a new distributor cap, all the plugs are new, wires look good but I'll replace them anyway. Other than the ignition coil what else should I check ? It's a 1966 sterncraft mercruiser 120 4 cylinder.
  5. M

    ignition switch issue

    I have a 1966 sterncraft mercruiser 120 4 cylinder and I recently re-wired all the wires. it wouldn't even turn over before but now I have it to where with the key in the ignition switch it wont even try to crank but if I arc it at the starter it will crank. how can I test the ignition switch...
  6. M

    MC-1 Drive locked up ?

    I recently bought my first boat and it needs some work, I have completely re wired everything and am finally able to get it to turn over. the motor will start to spin but stop almost instantly, and it kind of twists. like something is holding it back from doing its job. it seems like to me that...
  7. M

    Engine wires

    This is my 1st time on here and I just bought my 1st boat. It is a 1966 sterncraft mercruiser with the MC-1. I believe it is a 120. There are several wires unhooked, cut and/or missing. I put some back where it looks like they go but I need to know where every wire goes so I can get this engine...
Top