Thread subject: Whaler Central - Boston Whaler Boat Information and Photos :: Air filter being sucked into manifold

Posted by CaptAhab on 09/17/13 - 4:58 AM
#1

Im new to blog, I have a 2009 montauk 190 with 30 to 40 hours.

After launching the boat, and trying to accelerate, the engine stopped and was

acting like tit was starved for air. It hasnt stated since. On Continuous wave

they state this is a known problem (apr 2011). Has anyone here had this problem,

as I cant find if if Mercury has addressed this recently?

Posted by scrfasteddie on 09/17/13 - 5:18 AM
#2

The filter material on the 2007 115 merc that was on my 190 Montauk did that. Didn't ever ingest enough to kill the motor thou.
I cleaned all the old foam off and covered it with an Oregon chainsaw prefilter foam ring. Fit like a glove. Was about 5 bucks compared to $60 for the replacement filter. Any saw shop has there foam filters, take the filter housing with you and fit one to it. I had to trim a little for a perfect fit. A little RTV around the ends and your be good to go.

Posted by CaptAhab on 09/17/13 - 6:13 AM
#3

Thanx for the info, Im going to contact the dealer later today, to see if Mercury will

help out.

Posted by waco72 on 09/17/13 - 7:06 AM
#4

I had the same problem with my 2008 90 Mercury. It sounded like it bogged down and I got a warning alarm but then it corrected itself within a few seconds. When I checked under the cover I discovered 2 perfectly circular holes in the the air filter where the material was sucked in. When I called a few Mercury dealers about it I was was told that it is a maintenance issue and to just replace the filter which I did. No problems in last 200 hours. Good luck.

Posted by Tom W Clark on 09/17/13 - 7:34 AM
#5

It's not a maintenance issue, it's a known defect. Mercury has a service bulletin out for that very problem. Ask your dealer for the updated filter material.

Posted by oldnstoked on 09/29/13 - 6:13 AM
#6

I can't believe that mercury doesn't have a clear explanation on why this happens. I had the same problem 2008 90hp 4 stroke. I have taken the filter of for now. A lot of people have said as I have that it is getting oily and sticky also. I cant be good for this material going through my engine ( pistons, valves, exhaust , etc ) i hope to hear that someone had received a good response from Merc. I haven't.

Posted by butchdavis on 09/29/13 - 4:19 PM
#7

What is the purpose of an air filter on an outboard engine? Inboard engines I've seen with the exception of some diesels do not use air filters. They use spark arresters which keep large matter from entering the engine although that is not their purpose.

In my boating area, at least, I would not use an air filter. If that is a bad idea please enlighten me.

Posted by CaptAhab on 10/01/13 - 5:48 AM
#8

Update, After taking my boat to chesapeake whalertowne, and having a compter analyze the situation
immediately upon arrival.
There was a fuel line that broke. The harness from the engine well into the engine loosened.
The tilt and trimming eventually broke the fuel line. after inspection, only the smallest traces of the
filter were being taken into the air system. A new filter ($95.00) with metal mesh has replaced the old
edition. All work was under warranty and free. Richard Jerns, the serv mgr, was fantastic.
He had predicted a fuel problem over the phone. The serv tech steve, was also great, he went
above and beyond, with his diligent inspection, finding a futer problem (IAC, "valve?") had
developed dry rot, replaced. The filter was being eaten up externally, possibly by ethanol
vapor. The experience with the dealer was great. My warranty will expire 3/14. So the break-
down was a stroke of good fortune. Thanx to everyone for thier input.