Search results

  1. B

    Fluid for powertrim unit

    This has a small leak. For some reason I put power steering fluid in years ago. Now I'm told it should be 10W40 engine oil. What should I do now?? Engine is 4 cyl Olds?? Serial # 85157913 Mercury stern drive #5199120 MCM140 I think 1979
  2. B

    Exhaust smell coming back in the boat Mercruiser I/O

    Any solutions/causes?
  3. B

    Won't run long

    Engine is 4 cyl Olds?? Serial # 85157913 Mercury stern drive #5199120 MCM140 I think 1979 Last year went down to the other end of Buckeye Lake (7 miles?) and it quit. Rowed ashore and let it sit for about 4 hours(went to eat+) and it started and ran normally for about 6 miles and Quit! Towed in...
  4. B

    Switch problem?

    Had the ole girl out five times and she quit on me twice -- engine ran but would stall when I pushed the handle forward. Some one said it was the kill switch. How does it work and how can I check it?? ps seems to happen after the engine is warm and setting for a while
  5. B

    Overheating at idle MCM 140 1978?

    I was trying to figure out how this cooling system works because it is overheating at idle. So far I have figured out (I think) that water comes in to the engine thru a smaller hose (about 1" ID) to a port near the thermostat. It seems to return thru the exhaust ? I read somewhere about some...
  6. B

    Cooling system on 140MC/IO

    I have a problem with over heating at idle and have read of several possible problems/solutions; however, I would like to understand how my engine cooling system works. I believe the engine is a Chevy. I know how a car engine works, but need to know the basics of how the water is supplied to...
Top