m18

  1. Shannon & Doran Jones

    New owner - thermostat question M18 universal

    We have recently purchased a new to us Ericson 30+. The mechanical inspection showed the thermostat didn’t appear to be opening. When we pulled out the thermostat housing it was full of a gelatinous white material. The thermostat definitely wasn’t opening. We are a bit fearful that the heat...
  2. mherrcat

    Universal M-18 operating temp

    The M18 in my 30+ runs at less than 160 on the temp gauge. I have installed a new thermostat and new temp sender that I purchased from Featherman before he closed his business, but it still runs the same temp. Any ideas why it does this? I thought the operating temp was supposed to be 180. Does...
  3. mherrcat

    M-18 Exhaust Riser

    On the top of my exhaust riser there is a small plug similar to the plug that holds the zinc in the heat exchanger. There is also a larger plug on the port side of the riser at the bottom near the exhaust flange. What are the purpose of these plugs?
  4. mherrcat

    Engine Temp Sender - M18

    The temp sender on my Universal M18 may be dead. I tested the function of the temperature gauge and it appears to be OK. I used a multimeter to test the sender itself and the resistance readings do change as the temperature goes up, but no reading on the gauge. Torresen Marine sells a...
  5. T

    Universal M-18 "auxiliary water pump?" part number/replacement

    Over the weekend, my v-belt broke. Further inspection indicated that what might be an "auxiliary water pump" seized, thereby stopping the rotation of one of the 3 pulleys around which the v-belt travels and causing the friction that caused the belt to break. I'm not even 100% certain it is a...
  6. mherrcat

    More M-18 Questions

    Is the hose from the crankcase breather supposed to connect to anything? (On my motorcycle it routes back to the air filter; on others it has it's own filter and collector bottle.) On the parts schematic at Torresen Marine I see that the breather has an internal element. Does this element...
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