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  1. Justin_S987

    OMC I/O first test drive, need some part names.

    Oh yeah, the alternator is pretty ugly, I was thinking about replacing it with a coated one that matches from a later Mercruiser but its 120amp output vs the original's 50 to 65amp output.
  2. Justin_S987

    OMC I/O first test drive, need some part names.

    Yep, I replaced the ball gears and drive shaft seals this past spring and I rebuilt the upper gearbox assembly with a brand new top pinion gearbox and shaft plus shimmed it, a new water pump empeller with housing, and a new middle drive shaft. I also went to the effort to find permatex #2 to...
  3. Justin_S987

    OMC I/O first test drive, need some part names.

    Hello, it's been awhile since I last posted and my 1980 OMC 120 Renkin, has come a long way. I put it in the water for the first time this past week and after 4 hours re-learning that you have to adjust your carburetor for higher attitudes on mountain lakes before it will run....😬...... My...
  4. Justin_S987

    I just got a 1980 Renken w/OMC stringer

    Yep, original owner was very meticulous and gave us a an OMC Repair Manual along with all of his documentation and personal notes, it's been very helpful so far. Just hard to find part numbers for everything in the diagrams sometimes.
  5. Justin_S987

    I just got a 1980 Renken w/OMC stringer

    Update, the Ebay seller sent me to a site with all of outdrives parts numbers by brand so I have found them. Here is the link in case it helps anyone else...
  6. Justin_S987

    I just got a 1980 Renken w/OMC stringer

    Yeah, I need to buy some permatex to seal it all. I am also wanting to replace the upper and middle shafts for the pump and gearcase but the lower gearcase looks really good from above but I also haven't disassembled it. The upper and pump shafts obviously need replaced soon so I am going to...
  7. Justin_S987

    I just got a 1980 Renken w/OMC stringer

    I didn't want to start a new thread for a quick question so I am bumping this post. What would a pump with the impeller in backwards act like? Because I got ahold of the original owner and he said he had been waiting for an opportunity to replace the pump because it wasn't pulling water and...
  8. Justin_S987

    I just got a 1980 Renken w/OMC stringer

    That makes sense. I hope I didn't do any major damage to the engine. I was trying to be careful to the best of my knowledge.
  9. Justin_S987

    I just got a 1980 Renken w/OMC stringer

    Oof, ok. Guess Ill inspect everything again as I go. It will be easier to find anything I need and replace it before I put the drive back in the way. I only thought it was safe to run because I was told you can do it for like 5 minutes at a time. I ran like that 3 times to be sure it worked on...
  10. Justin_S987

    I just got a 1980 Renken w/OMC stringer

    Uhhh, hmmm. According to the OMC manual I have, the water pump is inside the drive unit right? Because it's not attached at the moment. the engine was just running the shaft with no load. I am aware it needs water to cool so I was trying to be cautious and just make sure the engine started and...
  11. Justin_S987

    I just got a 1980 Renken w/OMC stringer

    I'm wondering about the floor too, it has some barely noticeable give just in front of the engine area but solid everywhere else. New or not, Ill probably end up pulling the carpet to inspect it. The roof was not fully zipped at the corners in a few places and dripped to the inside but it did...
  12. Justin_S987

    I just got a 1980 Renken w/OMC stringer

    Hello, I am new to here and new to boats as a whole but boating is something I have toyed with trying one day. So, out of the blue I came into possession of a free, but oddly, ok shape 1980 Renken... bowrider?? ...as close as I can tell but it has a solid deck on the bow. With an OMC 120...
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