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  1. M

    OMC 4.3 Water Temp Gauge went to zero after reaching 220..

    Okay, sorry for the delay in getting back on this.. Next time out we checked the flow from the outdrive and it was working but not very strong.. There was water flowing out to the input to the engine of the supply hose so the engine is storing some water. Flow at idle was like 1/2" to 1" so...
  2. M

    OMC 4.3 Water Temp Gauge went to zero after reaching 220..

    Great video on testing sender and gauge for a Mercruiser. Is this the same setup for an OMC?
  3. M

    OMC 4.3 Water Temp Gauge went to zero after reaching 220..

    This is great info for a marine newbie. So before I posted this, I did run it a second time thinking that the engine would have shown signs of bogging etc which it did not. Again, I will not run again until I check out the things above. I have spend a few hours getting it ready and being...
  4. M

    OMC 4.3 Water Temp Gauge went to zero after reaching 220..

    Thanks for the great info.. The temp I mentioned might be wrong but 160 seems really low.. What is the typical thermostat rating in these 4.3s? I will pull the gauge and sensor to check specs ..
  5. M

    OMC 4.3 Water Temp Gauge went to zero after reaching 220..

    New boat, 1988 Four Winns Horizon 180 with OMC 4.3 and Cobra outdrive. Got it started after being down for about 2 years sitting. Appears my choke is not closing all the way so have to encourage with a bit of starter fluid sprayed into carb venturi with choke flap open. Starts and idles at...
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