Recent content by JFish

  1. J

    XR4 still overheating

    I'm still having overheating problems with higher than normal water pressure. Thermostats and poppet valves are working properly and I have looked for water flow restrictions everywhere I can (exhaust chest, etc...), without getting in to deep, with the exception of removing the powerhead. I'm...
  2. J

    water pump sleeve

    When I dropped my lower unit, the plastic guide sleeve on the water pump was somewhat melted to the inlet tubing. I had to pull it off with needlenose pliers. A small part of it remains because I can't access it. Whats going on here? Is this anything to do with my high water pressure and still...
  3. J

    XR4 Overheating

    I have an '89 Mercury 150 XR4. For some time now, I've been having a problem with overheating, even after replacing impellor and associated parts, poppet valve, and thermostats. When on plane traveling slow, the water pressure is 10 psig and the engine will overheat rapidly. When I increase...
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