Logo
FULL SITE MENU

Search results

  1. E

    Mercruiser 4.3 MPI overheating

    Did anyone ever find the issue? My engine used to run fine @183 the hottest
  2. E

    Mercruiser 4.3 MPI overheating

    My engine running hot over 200 degrees at wide open throttle with closed cooling system, it's a sbc 383 with volvo penta drive. I changed water circulation pump and raw water pump but can't find my issue. It runs at 175 at 3500 rmp but over 4500 I'm running hot.
  3. E

    Overheat at full throttle

    I think the issue is more than water pumps cause I change two raw water pump and circulation pump. So either raw water pump suck air from somewhere or something obstructing the thermostat from open fully.
  4. E

    Overheat at full throttle

    Did you ever solve the problem cause I'm having the same issue since I put a set of aluminum heads on. I changed raw water and circulation pump and hoses n still can't find problem. It ran normal below 180 at 3800 rpm but 4000 to 5000 temperature rising up to 200 degrees n the longer you hold it...
Back
Top