Evinrude E-NATION, for those dedicated to water, power, fishing and fun
Reply
Captain
harleymike
Posts: 21
Registered: ‎01-06-2012

exhaust pop


noticed the last few times, and maybe it always did this.

While running slow and pushing alot of water, around 1800 too 2400 rpms.

Never does it on plane.

I can hear a slight very soft occasional exhuast pop noise. Motor runs fine, but just an odd sound. Like maybe the exhasut is loaded up and pops. Very soft noise.

I am kinda **bleep** about suonds, sorry guys.

thanks for any help

Please use plain text.
Admiral
BluewaterBill
Posts: 1,077
Registered: ‎07-14-2011

Re: exhaust pop

At 1800 to 2400 rpm your engine may be in the transition stage where it is changing between the lean-burn mode and the regular-combustion mode. That may add some roughness or noisiness in the range.

 

A good dealer may be able to adjust the TPS calibration one way or another to minimize the feeling and sound. It also depends on how the motor is propped as overpropping puts a heavier load on the motor.

 

What is  your top speed, top rpm with a normal load, and what prop size and boat do you have?

***************


"There is never just one thing wrong with a boat"
                                                 --- Travis McGee


***************
The factory recommends that a properly trained technician service your Johnson or Evinrude outboard motor. If you elect to do it yourself, be sure to use caution, common sense, and to observe all safety procedures in the vicinity of gasoline, moving engine parts, high temperature components, heavy items, and electrical or ignition systems.

The information offered here is only general in nature and should not be construed as complete factory approved procedures, techniques, or specifications. Always use the proper service manual for your motor, up-to-date service literature, correct tools, and have an understanding of how to proceed with a repair. If you are unsure or uncomfortable with a procedure, a situation or a technique, enlist the services of a factory trained technician.
Please use plain text.
Captain
harleymike
Posts: 21
Registered: ‎01-06-2012

Re: exhaust pop

top speed it 49 mph at 5500 rpms. It is on a 2010 lund explorer 1825 sport. Prop is aluminum 14.5 x 19 evinrude prop.

Please use plain text.
Captain
harleymike
Posts: 21
Registered: ‎01-06-2012

Re: exhaust pop

I did notice tonight it seemed too be a little louder than normal.

I did a bunch of hard accderlerations from stop too wot and ran at wot for a few min. every time.

After that it ran alot quiter and seemed even a little bit smoother.

Maybe just needed a little cleaning out.

 

Please use plain text.
Captain
harleymike
Posts: 21
Registered: ‎01-06-2012

Re: exhaust pop

Bluewater Bill you asked for more info, and now no more help.

Please use plain text.
Admiral
BluewaterBill
Posts: 1,077
Registered: ‎07-14-2011

Re: exhaust pop

[ Edited ]

You did not state the model and year of your E-TEC. What motor?

 

Also this was a major holiday weekend and most folks have the time off for the 3 day weekend.

***************


"There is never just one thing wrong with a boat"
                                                 --- Travis McGee


***************
The factory recommends that a properly trained technician service your Johnson or Evinrude outboard motor. If you elect to do it yourself, be sure to use caution, common sense, and to observe all safety procedures in the vicinity of gasoline, moving engine parts, high temperature components, heavy items, and electrical or ignition systems.

The information offered here is only general in nature and should not be construed as complete factory approved procedures, techniques, or specifications. Always use the proper service manual for your motor, up-to-date service literature, correct tools, and have an understanding of how to proceed with a repair. If you are unsure or uncomfortable with a procedure, a situation or a technique, enlist the services of a factory trained technician.
Please use plain text.
Captain
harleymike
Posts: 21
Registered: ‎01-06-2012

Re: exhaust pop

[ Edited ]

ohhh crap...sorry. Me bad...LOL

 

Im in Canada, and work shift work. So i'm not sure what a long weekend is anymore or keep track of them...LOl

 

its a 2012   E150DBXIN

 

Thanks

Please use plain text.
Admiral
BluewaterBill
Posts: 1,077
Registered: ‎07-14-2011

Re: exhaust pop

Not a problem, plus you being in Canada may not have been aware of our Memorial Day holiday weekend where we honor our military who did not return alive from war or conflict.

 

For your muted popping noise, like I mentioned before, have a good tech experiment with the TPS calibration adjustment to see if things improve if the situation is objectionable to you. Since it is in that combution mode transition rpm range, I doubt that it is anything to worry about, plus that is not an rpm  that is used often due to the boat not being on plane yet and just plowing the water.

***************


"There is never just one thing wrong with a boat"
                                                 --- Travis McGee


***************
The factory recommends that a properly trained technician service your Johnson or Evinrude outboard motor. If you elect to do it yourself, be sure to use caution, common sense, and to observe all safety procedures in the vicinity of gasoline, moving engine parts, high temperature components, heavy items, and electrical or ignition systems.

The information offered here is only general in nature and should not be construed as complete factory approved procedures, techniques, or specifications. Always use the proper service manual for your motor, up-to-date service literature, correct tools, and have an understanding of how to proceed with a repair. If you are unsure or uncomfortable with a procedure, a situation or a technique, enlist the services of a factory trained technician.
Please use plain text.