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Dec 30th, 2023
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 Lower Unit Noise
#13387737
12/30/19 11:49 PM
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Joined: Dec 2008
Posts: 7,027
Fishbonz
OP
TFF Celebrity
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OP
TFF Celebrity
Joined: Dec 2008
Posts: 7,027 |
I have an old 150hp Merc Blk Max XR4 motor that still runs strong However I`ve noticed lately at low enging rpm`s there is a hard kicking noise coming from the lower unit when I give it throttle. It goes away after a few seconds.I`ve never hit a stump or anything but I`ve checked the lower unit visually and found no cracks or damage.Does anyone have any idea what could be going on? ![[Linked Image]](https://texasfishingforum.com/forums/pics/userpics/2019/12/full-35665-34645-126.jpg) ![[Linked Image]](https://texasfishingforum.com/forums/pics/userpics/2019/12/full-35665-34646-127.jpg)
HE aka Fishbonz
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 Re: Lower Unit Noise
[Re: Fishbonz]
#13387805
12/31/19 12:52 AM
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Joined: May 2010
Posts: 4,757
2014NITROZ-7
TFF Team Angler
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TFF Team Angler
Joined: May 2010
Posts: 4,757 |
Have you checked the grease in the lower unit? If so did it have metal in it?
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Re: Lower Unit Noise
[Re: 2014NITROZ-7]
#13387936
12/31/19 02:45 AM
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Joined: Dec 2008
Posts: 7,027
Fishbonz
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TFF Celebrity
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OP
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Joined: Dec 2008
Posts: 7,027 |
Have you checked the grease in the lower unit? If so did it have metal in it? I hadn`t considered that since I replaced the old grease no less than six months ago and it had no traces of metal.
HE aka Fishbonz
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Re: Lower Unit Noise
[Re: Fishbonz]
#13388112
12/31/19 12:47 PM
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Joined: Sep 2010
Posts: 1,599
boatwhisperer
Extreme Angler
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Extreme Angler
Joined: Sep 2010
Posts: 1,599 |
may be jumping out of gear at low rpms I would try to adjust the shift cable a few turns toward forward gear to gget a little better engagement and see if it goes away
boatwhisperer
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Re: Lower Unit Noise
[Re: boatwhisperer]
#13388385
12/31/19 04:42 PM
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Joined: Dec 2008
Posts: 7,027
Fishbonz
OP
TFF Celebrity
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OP
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Posts: 7,027 |
may be jumping out of gear at low rpms I would try to adjust the shift cable a few turns toward forward gear to gget a little better engagement and see if it goes away I don`t mean to sound Dum.......but uh just how do I do that? 
HE aka Fishbonz
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Re: Lower Unit Noise
[Re: Fishbonz]
#13388563
12/31/19 07:10 PM
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Joined: Sep 2010
Posts: 1,599
boatwhisperer
Extreme Angler
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Extreme Angler
Joined: Sep 2010
Posts: 1,599 |
if you like u can contact me and I can explain to you how to do it 817-455-8377
boatwhisperer
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Re: Lower Unit Noise
[Re: boatwhisperer]
#13388618
12/31/19 08:05 PM
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Joined: Dec 2008
Posts: 7,027
Fishbonz
OP
TFF Celebrity
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OP
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Joined: Dec 2008
Posts: 7,027 |
if you like u can contact me and I can explain to you how to do it 817-455-8377 Expect a call
HE aka Fishbonz
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Re: Lower Unit Noise
[Re: Fishbonz]
#13390452
01/02/20 02:35 PM
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Joined: Aug 2006
Posts: 7,182
steve@S2Marine
TFF Celebrity
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TFF Celebrity
Joined: Aug 2006
Posts: 7,182 |
sounds like the shift cable needs to be adjusted
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Re: Lower Unit Noise
[Re: boatwhisperer]
#13390691
01/02/20 06:25 PM
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Joined: Dec 2008
Posts: 7,027
Fishbonz
OP
TFF Celebrity
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OP
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Joined: Dec 2008
Posts: 7,027 |
may be jumping out of gear at low rpms I would try to adjust the shift cable a few turns toward forward gear to gget a little better engagement and see if it goes away Thanks Dennis! I`ll let you know how it turn`s out! 
HE aka Fishbonz
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