2018 Mercury 150hp 4 stroke o/b Question

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broken paddle
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2018 Mercury 150hp 4 stroke o/b Question

#1 Post by broken paddle » Wed Jun 19, 2019 9:36 am

if you have one of these, does it CLUNK in gear or make a smooth non-clunking engagement ?
2018 sun tracker party barge 22 XP3
2018 Mercury 150 ELPT fourstroke
2018 tandem axle trailer with brakes
only option, is a billet ski pylon

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Reiner
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Re: 2018 Mercury 150hp 4 stroke o/b Question

#2 Post by Reiner » Wed Jun 19, 2019 4:14 pm

It all depends how quick you shift it in gear. Slow, you'll hear the gears and not so much when you do it quick. You get a feel for it over time. Is like shifting gears with out pushing the clutch and it all comes down to the right feel.
2015 Lowe SS 210 RFL XL Package 150 HP Merc
"The Nina" or "The Bismarck" my buddy's call it!
2011 Tundra

broken paddle
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Re: 2018 Mercury 150hp 4 stroke o/b Question

#3 Post by broken paddle » Wed Jun 19, 2019 5:19 pm

its the CLUNK I'm concerned about. I see you have same motor, how smooth does it go into gear.
2018 sun tracker party barge 22 XP3
2018 Mercury 150 ELPT fourstroke
2018 tandem axle trailer with brakes
only option, is a billet ski pylon

willy13
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Re: 2018 Mercury 150hp 4 stroke o/b Question

#4 Post by willy13 » Wed Jun 19, 2019 7:09 pm

Stainless props can cause this. What hub are you running.

broken paddle
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Re: 2018 Mercury 150hp 4 stroke o/b Question

#5 Post by broken paddle » Thu Jun 20, 2019 9:50 am

willy13 wrote:
Wed Jun 19, 2019 7:09 pm
Stainless props can cause this. What hub are you running.


hub kit ??? it's the. prop that came with motor. Enertia 15.6 X 13P RH. it did get that plastic ring thing that helps with prop cavitation, although it still cavitates some.
2018 sun tracker party barge 22 XP3
2018 Mercury 150 ELPT fourstroke
2018 tandem axle trailer with brakes
only option, is a billet ski pylon

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Reiner
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Re: 2018 Mercury 150hp 4 stroke o/b Question

#6 Post by Reiner » Thu Jun 20, 2019 10:11 am

If you google "gear noise while shifting " for outboards/inboards the answer is 90% you're doing it to slow. Unless you have a problem with the cable not adjusted correctly.
2015 Lowe SS 210 RFL XL Package 150 HP Merc
"The Nina" or "The Bismarck" my buddy's call it!
2011 Tundra

willy13
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Re: 2018 Mercury 150hp 4 stroke o/b Question

#7 Post by willy13 » Thu Jun 20, 2019 3:58 pm

broken paddle wrote:
Thu Jun 20, 2019 9:50 am
willy13 wrote:
Wed Jun 19, 2019 7:09 pm
Stainless props can cause this. What hub are you running.


hub kit ??? it's the. prop that came with motor. Enertia 15.6 X 13P RH. it did get that plastic ring thing that helps with prop cavitation, although it still cavitates some.
The Enertia prop uses a hub kit. It is user replacable. It probably is the cheaper and older design Flo-Torq 2. If the noise bothers you a Flo-Torq 4 may reduce the noise. I think the weight of the prop and the quietness of the motor allows you to notice the gears smacking due to the back lash in the gears. That is my understanding as I remember it because my Yamaha F115 does the same thing. In my case, my stainless prop had a fixed hub, so I could not do anything about it.

wc9550
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Re: 2018 Mercury 150hp 4 stroke o/b Question

#8 Post by wc9550 » Thu Jun 20, 2019 4:48 pm

I have a 2019 mercury 200 using the exact same prop enertia 15.6 x 13p RH and mine makes the same noise I noticed. However mine only does it when shifting slow (like others have mentioned). If I shift it faster, I don’t really hear the noise. It doesn’t really bother me much as I figured it was lash in the gears and the engine idles at 600 (way lower and quieter than my 78’ mercury 700 lol). Hope this helps
2019 South Bay 224SB2 3.0 tritoon with 2019 Merc. L200

BobL
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Re: 2018 Mercury 150hp 4 stroke o/b Question

#9 Post by BobL » Fri Jun 21, 2019 6:59 am

The gears engage hard when they are in good condition and that clunk is usually a good sign, not a bad one. Gear teeth are being forced into other gear teeth when one set of those gears is turning at or around half of the engine RPM speed. Because of the way they engage, it is never recommended to slowly slide it into gear since this causes excessive wear. You cannot shift too quickly. You can shift too slowly.

With all that being said, I would check your RPM at idle as anything over the 700 range can cause excessive wear.
SOLD - 2009 20' Bentley w/4 Stroke 90hp Mercury
SOLD - 2011 SouthBay 522CR w/115 4 Stroke Mercury
2014 Xcursion 23RF XS package w/150 4 Stroke Mercury

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FLOUNDERPOUNDER225
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Re: 2018 Mercury 150hp 4 stroke o/b Question

#10 Post by FLOUNDERPOUNDER225 » Fri Jun 21, 2019 7:21 am

willy13 wrote:
Thu Jun 20, 2019 3:58 pm
broken paddle wrote:
Thu Jun 20, 2019 9:50 am
willy13 wrote:
Wed Jun 19, 2019 7:09 pm
Stainless props can cause this. What hub are you running.


hub kit ??? it's the. prop that came with motor. Enertia 15.6 X 13P RH. it did get that plastic ring thing that helps with prop cavitation, although it still cavitates some.
The Enertia prop uses a hub kit. It is user replacable. It probably is the cheaper and older design Flo-Torq 2. If the noise bothers you a Flo-Torq 4 may reduce the noise. I think the weight of the prop and the quietness of the motor allows you to notice the gears smacking due to the back lash in the gears. That is my understanding as I remember it because my Yamaha F115 does the same thing. In my case, my stainless prop had a fixed hub, so I could not do anything about it.
This is the correct answer, the flo torque IV will eliminate the rattle at slow speed. The enertia is a heavy prop, and the imperceptible pause between intake and power strokes on 4 stroke motors they believe causes this rattle. the FLO torque 4 hub kit is designed to absorb this shock. now this eliminates rattle, not a clunk, which is pretty common on out boards shifting into gear, you don't ease them in, you quickly engage the shifter.
Pensacola FL
2015 Berkshire 231 RFC
Yamaha F-150

broken paddle
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Re: 2018 Mercury 150hp 4 stroke o/b Question

#11 Post by broken paddle » Fri Jun 21, 2019 2:08 pm

thanks for reply's I'll try the hub kit and slap it into gear.
2018 sun tracker party barge 22 XP3
2018 Mercury 150 ELPT fourstroke
2018 tandem axle trailer with brakes
only option, is a billet ski pylon

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