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Over heating radiator cap leaking-gctid809217

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    Over heating radiator cap leaking-gctid809217

    My 2.1 L volvo overheated first time out within about 10 minutes on the water. I brought it home and saw that water was coming out at the radiator cap when it was hot. I got a new cap and I also changed the water pump impeller which was trashed. Thought that should take care of it. Still after running for a few minutes in a bucket of water the new cap started weeping and wasn't really seeing much water coming out the exhaust. What should be my next step.

    #2
    Welcome! Great question. A bucket isn't very much water for your motor and the pump isn't real great at self priming. Get a set of "Earmuffs" that connect to a hose, then try it. You are going to want to recheck that impeller. If it was running dry it may have overheated. Running on the earmuffs should push a fair amount of water through the system. More if there are no impellers to slow it down.
    P/C Pete
    Edmonds Yacht Club (Commodore 1993)
    1988 3818 "GLAUBEN”
    Hino EH700 175 Onan MDKD Genset
    MMSI 367770440

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      #3
      After testing on the muffs I'd look to replace the t stat next.
      Dave
      Edmonds, WA
      "THE FIX"
      '93 2556
      Carbureted 383 Vortec-Bravo II 2.0:1 18 1/4x19 P

      The rebuild of my 2556 https://www.baylinerownersclub.org/f...76?view=thread
      Misc. projects thread
      https://www.baylinerownersclub.org/f...56-gctid789773

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        #4
        Thanks,

        The bucket I used covered the water inlet on the out drive. The T stat was my next thought also.

        It does look like I may have fixed the problem. The water inlet pipes were clogged. I ran water backwards and got the water to run free. No more heating up.

        I did notice my exhaust hose in the motor compartment has a large tear in it. And the bellows on the outside of the boat is torn also. Can I run the boat with them like that until I get new ones shipped? What if any problems will it cause?

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          #5
          "rcdriver11" post=809253 wrote:
          I did notice my exhaust hose in the motor compartment has a large tear in it. And the bellows on the outside of the boat is torn also. Can I run the boat with them like that until I get new ones shipped? What if any problems will it cause?
          Assuming your referring to the rubber exhaust coupler? They can become cooked due to an overheat, No do not run it with a "torn" exhaust coupler.

          If your referring to the u joint bellow the answer is the same. Do not run it with a "torn" bellow, you risk water damage to the parts that the bellow is there to protect and then some. You may already have a problem regarding the u joint bellow, you'll need to remove the drive to inspect.
          Dave
          Edmonds, WA
          "THE FIX"
          '93 2556
          Carbureted 383 Vortec-Bravo II 2.0:1 18 1/4x19 P

          The rebuild of my 2556 https://www.baylinerownersclub.org/f...76?view=thread
          Misc. projects thread
          https://www.baylinerownersclub.org/f...56-gctid789773

          Comment

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