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  1. 1lastweekend

    MC-1 outdrive shifter alignment questions...

    I just replaced the lower shift cable as part of a bellows and trim switch replacement on my 1981 MC-1 drive, and have messed something up in aligning the upper shift shoe and lower shift shoe...I started the boat and it wont go into forward gear at all, and in reverse it just clanks and clunks...
  2. 1lastweekend

    1981 MC-1 driveshaft reinstall into upper housing- any tricks to this?

    I just replaced the 2 seals in my upper housing, and also the seal on my driveshaft yoke, and now I am ready to reinstall the driveshaft into the upper housing...And it doesn't want to fit back in. I used a ring compressor sleeve to line everything back up on the driveshaft, and torqued the new...
  3. 1lastweekend

    1981 Rinker with Mercruiser 120HP, In what order should I do these repairs??

    I have a 17' Rinker open bow with a 1981 Mercruiser 120HP that needs the following work this spring: - Replace all bellows - Replace trim limit and trim position switches - Replace lower shift cable I am pulling the outdrive today, what order makes the most sense to do these repairs? I am also...
  4. 1lastweekend

    Prestolite trim pump...Before I disassemble, any advice?

    I have a 1981 Rinker V170 with the Mercruiser 120/2.5L motor. For the last year, the lower unit will drift down to the full down position within a few minutes of being raised. This boat has the Prestolite trim pump in it. I have checked the trim rams, lines and pump, does not appear to be...
  5. 1lastweekend

    Mercruiser throttle/shift control hard to get into neutral...

    I have a 1981 Rinker 17ft witha Mercruiser 120HP I/O. Lately, when I am shifting into neutral from either forward or reverse, the shifter seems to have a hard time "finding" neutral. Sometimes I have to shift from forward past neutral into reverse, and then back into neutral to get it into...
  6. 1lastweekend

    Correct connections for Pertronix Flamethrower coil?

    Hi I am working on installing a Pertronix 40611 3.0 ohm epoxy coil for my 1981 Mercruiser 2.5L engine, s/n 5907433. From what I have read on various forums, my OEM coil was a 1.5 ohm, but there's a simple wire swap to allow the Pertronix to function correctly. I disconnected the purple/yellow...
  7. 1lastweekend

    Johnson 4.5HP- double check model year and water flow...

    Considering purchasing a Johnson 4.5HP, saw it run today and it seemed to run fine...The question is do I have the right year of the motor? The model # is J5RCSS, which should mean Johnson 5hp, rope start, and CS equals model year 1980 I believe. The designation for shaft length is a blank for...
  8. 1lastweekend

    Water leaking down shift shaft/housing 1981 9.9HP Evinrude

    I just bought a 1981 Evinrude 9.9HP from a friend and it wasn't pumping much water, so I changed the impeller and water pump assy. After reassembling it, I tank tested the motor and I have great water flow, but I noticed water was flowing down the housing where the shift shaft is located. I...
  9. 1lastweekend

    Mysterious engine performance drop...

    I have a 1981 MC 120 HP 2.5L engine on a 17' Rinker bowrider. This spring I noticed a large crack on the exhaust manifold leaking water, so I replaced it with a new OEM manifold. After the repair the engine ran great on muffs, and when I put the boat into my slip 3 weeks ago I took it for a...
  10. 1lastweekend

    Replacement parts for my shifter?

    Can anyone recommend a good place to get hard to find or NOS replacement parts online? I have a 1981 Rinker with the Mercruiser 120HP pre-Alpha, and while replacing the interior of the boat this winter I broke the shifter bezel. I have looked all over the net and have not found anything close to...
  11. 1lastweekend

    Understanding Mercruiser part numbers...Replacement exhaust manifold?

    Hi, I have a 1981 Rinker V170 with the 120HP Mercruiser 2.5L GM engine. Last fall while winterizing the boat I noticed water running down the exhaust side of the block, and immediately thought oh crap the block is cracked. I completed the winterization, but not before running the motor for an...
  12. 1lastweekend

    1981 Rinker V170 I/O interior sidewall rebuild- any advice?

    This fall I decided to replace the worn interior of my 81 Rinker. I removed the seats and some of the carpet and then removed the interior vinyl/plywood sidewalls to make templates for the new pieces. I found some rotten wood under the fiberglass sidewall structures (not sure what the right...
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