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  1. 1lastweekend

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

    Thanks, I hit the inside of the housing with a propane torch for 60 seconds and the whole thing slid right in!
  2. 1lastweekend

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

    Yes!!! Got it in, just hit the inside of the housing with a torch for 60 seconds or so!
  3. 1lastweekend

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

    Thanks, I will try that too if the clamp doesn't help...Did you use a heat gun or a torch? So you flipped the housing on its back and lowered the driveshaft in from above? Thanks!
  4. 1lastweekend

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

    Yeah I hope not, but I set up this clamp and rubber pieces to check...My calipers dont go down far enough into the housing to measure more that a little past the threads...I am going to move this setup an inch at a time through all the positions clockwise, give it 2-3 turns on the clamp and see...
  5. 1lastweekend

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

    Thanks, I have a couple of extra washers so maybe I will loosen up the nut and retorque with a hose clamp…the only thing is the leading edge of the front race is what’s getting caught in the housing…so I don’t think I’m even to the point of having a misalignment issue but I will retorque and try...
  6. 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...
  7. 1lastweekend

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

    Thanks all for the advice so far! I have run into an issue I cant quite figure out...After replacing the oil seal on the upper driveshaft bearing assy, I cleaned all the components and reassembled the driveshaft assy as shown in the diagram and per my shop manual, and the leading bearing race...
  8. 1lastweekend

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

    Great that makes sense!
  9. 1lastweekend

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

    Thanks, it is sometimes had to tell with Mercury's drawings what belongs to the lower shift shaft vs the intermediate...When I split the drive, my lower only had 48 and 49 on top of the lower shaft bushing (#47)...I have since seen most videos replace those 2 above the bushing. So I am not sure...
  10. 1lastweekend

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

    One additional question for the group- I have replaced the seals in the upper and am putting it all back together- anyone know the correct stackup for the intermediate shift shaft in the upper housing? it had a rubber bushing above the hole, and a SS washer and the cotter pin below when I took...
  11. 1lastweekend

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

    Yes, I found that since I have the pin on the top of the lower unit driveshaft, this sets the gear stack preload, and the upper driveshaft gear assy is just simply torqued to 80-ft-lbs with a new nut and washer...
  12. 1lastweekend

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

    Yes this is an original MC-1 drive. After work today I plan on watching the video...
  13. 1lastweekend

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

    Ok thanks! I have a click-type and a needle-type (beam) torque wrench, but not a true rolling wrench...Those are pricey, maybe my local auto parts store has a loaner...
  14. 1lastweekend

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

    Yes I can see the wires between the TP sender and where it goes thru the hull are corroded and bare wire is exposed. I did spray the 1/4" bolts 2 days in a row now with PB blaster, hopefully that helps. 100% freshwater boat so other than some zebra mussels hiding out in there its pretty clean...
  15. 1lastweekend

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

    Thanks all for the feedback! Since the boat is going up for sale after I do the repairs, I am planning on replacing the gimbal bearing and the water pump while I am doing the above list. But...One problem I found right away when I removed the outdrive, was that the driveshaft bellows was...
  16. 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...
  17. 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...
  18. 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...
  19. 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...
  20. 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...
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