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  1. TripleEh

    Alpha one gen II growling noise when turning

    Just to close this thread out for now I’m booking the boat in to get a new coupler. I’m tired of chasing things in my driveway if you know what I mean. I will start a new thread in the spring and perhaps reference this one when I found out the result. Thanks everyone for your help.
  2. TripleEh

    Alpha one gen II growling noise when turning

    The play is between the SS rod and the gimbal ring. Not sure it would cause a growl only when turning. Just noticed it and wondered if it is normal or not.
  3. TripleEh

    Alpha one gen II growling noise when turning

  4. TripleEh

    Alpha one gen II growling noise when turning

    Oh sorry I guess the trim cylinders attach to the gimbal ring not the transom. There are bushings between the trim cylinders and the pivot shaft but nothing where the shaft goes through the gimbal ring.
  5. TripleEh

    Alpha one gen II growling noise when turning

    No. Hinge pins are good and the top and bottom final ring pins are good. This play is where the trim cylinder pivot shaft goes through the transom
  6. TripleEh

    Alpha one gen II growling noise when turning

    No, I can’t hear any whining. Perhaps a better word for that sound in the water is a “whirring” sound but it’s not very loud.
  7. TripleEh

    Alpha one gen II growling noise when turning

    Did some checking tonight on muffs. First video is the coupler at idle. The coupler doesn’t appear to wobble but you can hear an intermittent knocking sound. After feeling around I think it’s the exhaust flaps but open to ideas Second video is the coupler at high idle. Knocking is not as...
  8. TripleEh

    Alpha one gen II growling noise when turning

    I’ve thought the same thing! Rent it for a day.
  9. TripleEh

    Alpha one gen II growling noise when turning

    I can’t hear it from the wheel but the boat mechanic said he could hear something standing at the rear of the boat. I will listen tonight with someone at the wheel and maybe take another video. I can’t imagine how the ps system could make this noise but I can watch the rack when doing my...
  10. TripleEh

    Alpha one gen II growling noise when turning

    I’m learning this. . Last night I dialed in alignment with grease on the alignment tool and confirmed with an old yoke. I learned that even if the tool slides in smoothly it doesn’t mean it’s aligned. Grease and the yoke don’t lie.
  11. TripleEh

    Alpha one gen II growling noise when turning

    Even if I knew this would last another 5 years I would fix this…..drives me nuts knowing that it’s not perfect!
  12. TripleEh

    Alpha one gen II growling noise when turning

    Thanks for the tip. I’ll watch the coupler in the water. I can definitely see the coupler and I may be able to see the shaft. With the overall condition of the boat I’m confident in the structure.
  13. TripleEh

    Alpha one gen II growling noise when turning

    Below is a link to a coupler test with an aluminum bar. The tolerance is +\- 0.012” on the bar so it’s not the tightest fit in the coupler. In any case it seems to wobble quite a bit. Does this look normal to you guys? Would the flex in the rubber make up for this set or would this cause...
  14. TripleEh

    Alpha one gen II growling noise when turning

    In the water today and it’s no better. When my tool arrives I’ll check the drive shaft bearing. Otherwise I’m leaning toward a bad coupler. I didn’t have 1” round bar at home so I used a piece of thin wall tube to check the coupler. Unfortunately I don’t think the tube is very true but it...
  15. TripleEh

    Alpha one gen II growling noise when turning

    I took a look at this today. I’m still waiting on the castle nut wrench to arrive so I focused on the coupler and alignment instead of checking the drive shaft bearing. I found that one front motor mount was adjusted lower than the other but a fair bit which I imagine may put a twist in the...
  16. TripleEh

    Alpha one gen II growling noise when turning

    I will try that. I’ve also heard that 1.62 gears have match marks so I will check for that before and after I pull. Thanks
  17. TripleEh

    Alpha one gen II growling noise when turning

    Got it. I’ve been scared to pull that one out so far but I guess if I don’t touch the bearing nut I can remove and inspect with just the castle nut without affecting anything. Thanks.
  18. TripleEh

    Alpha one gen II growling noise when turning

    Thanks for these….assuming you mean the lower, horizontal shaft. I will check it. One other characteristic of this noise - if I’m at idle in gear, turn the wheel and apply power, the noise is there. If the drive is straight -no noise. Not sure that bearing knows which way the prop is pointing...
  19. TripleEh

    Alpha one gen II growling noise when turning

    Yes, at all rpm. More growling noise than vibration but yes.
  20. TripleEh

    Alpha one gen II growling noise when turning

    Thanks Rick. I will check the drive shaft runout. U joints were Sierra, ordered from a dealer by drive serial and were replaced twice by two different people. Not positive how to check the coupler but I will start by turning it over with the drive off.
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