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  1. 998cc

    MC-1: Drive shaft bellows pops off bell housing when installing outdrive

    I am really confounded by this issue. The first time this happened, I assumed there was an issue with the bellows install. I took it all apart again, cleaned all the parts, glued, etc., etc., and reassembled. The second time, there is no question the bellows was on right. Drive: 1972 MC-1...
  2. 998cc

    Mercontrol shift/throttle question

    Boat: 1972 Gulstream, 18' fish/ski boat. Mercruiser MC-1 with L-6 250 (GM) motor. First off, I have never driven this boat. It is a new-to-me boat that has been a restoration project since March 2013 The control unit is pictured in the Mercury Service Manual C-90-71707 on page 7C-4 and...
  3. 998cc

    Teleflex Steering Disassembly (1972 Gulfstream)

    Boat: 1972 Gulfstream, 18 ft. fish/ski boat. Mercruiser MC-1, 165 L6 (GM) motor. I decided to test/replace the dashboard gauges and need to remove the dashboard. I have run into a snag. After removing the steering wheel and removing the scroll type steering indicator, removing the two...
  4. 998cc

    Pre-Alpha drive bellows (help)

    All. I have the SELOC manual and have followed it. So far getting the new drive bellows on has been elusive. The Drive, Exhaust and Shift bellows are installed on the gimbal side OK; the bell housing side has been a bear. Drive Bellows: What happens is when pulling the bellows over the hub...
  5. 998cc

    Mercruiser 165 250 L6 Water intake hose material?

    All. I am installing all new bellows, shift cable etc. today and noticed my new water intake hose is kinking at the gimbal housing connection. I bought Goodyear 5/8" automotive heater hose thinking it would suffice. Is there a better spec for hose material?? Perhaps a good fuel hose or?? Drive...
  6. 998cc

    Help in finding transom gasket 1972 Mercruiser 165

    All. Sorry for this seemingly simple question, but for me it has been daunting. I Have looked high and low and cannot find the rubber gasket that goes between the outdrive and the boat. My searches all result in bellows kits and the drive/bell housing gasket. Am I using the wrong terminology...
  7. 998cc

    Mercruiser 165 (4.1 L6) Prop Pitch question

    :confused:All. I am continuing with my 1972 Gulfstream project and would like the benefit of your experience here. I understand the relationship of pitch to speed versus power but do not know the relationship of pitch and diameter as they relate to my specific needs. Looking online, finding...
  8. 998cc

    Mercruiser 165 Block Pressure Test results confusing

    Hello all. Thanks for reading this thread. I know this issue is covered elsewhere in the forum, but I am confused with the results of my block pressure test. I have water in the oil of my engine, a GM 250ci 6cylinder, yet there is no sign of air escaping air when pressurizing the water...
  9. 998cc

    1971 Mercruiser165 rebuild

    Hello all. I have determined that the engine in my new-to-me 1971 boat has a cracked block, and the stern drive will not engage in the forward direction. I was going to recycle the boat, but today, I found a complete 165 engine and stern drive on craigslist and hope to make one good setup from...
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