250 HO Etec issue....cont....

[cjaswegan]

I currently have two issues in the works with my '08 Etec HO. My M2 gearcase is at the dealer, who has not had time to put it on. I've also had a miss/hesitation at 5500+ rpm. I decided to try another dealer who said he could look at the miss/hesitation issue right away, so I jumped all over that given that it's the middle of tournament season up here. Apparently they've checked everything they can check (fuel pressure, plugs, injectors, compression, ect) and called Evinrude. The Evinrude tech told them that by looking at the motor history, it should have an M2 gearcase, and considering all other data looked okay, the problem could very well be caused by the L2 gearcase. Has anyone heard of the L2 causing a running condition as I described? The new M2 case comes with a replacement muffler, could this be a back pressure issue?

[munchie]

did you get the im i sent you during your last post.

[boogerdoc2]

I agree with munchie.

An L2 causing a miss at 5500? Im no evinrude moderator but as a physician I would describe that as "organic behavior".

[cjaswegan]

Yeah, I think it was about changing the fuel bulb. I had already dropped the boat off when I got that. I assume if the dealer checked fuel pressure, that should eliminate the bulb. I don't know that for sure, though. I would think they measure pressure near the injector, there by clearing everything upstream from there.

[extrem250]

When my 08 blew ,I got a fully dressed power head ,and a new Exhaust ?I'm not too crazy about swapping to the M2.
Hope they get ya back on the water ,with out the fear of a broken down motor ,every time you go out.

[clm6741]

<table width="90%" cellspacing=0 cellpadding=0 align=center><tr><td>Quote, originally posted by cjaswegan &raquo;</td></tr><tr><td class="quote">I currently have two issues in the works with my '08 Etec HO. My M2 gearcase is at the dealer, who has not had time to put it on. I've also had a miss/hesitation at 5500+ rpm. I decided to try another dealer who said he could look at the miss/hesitation issue right away, so I jumped all over that given that it's the middle of tournament season up here. Apparently they've checked everything they can check (fuel pressure, plugs, injectors, compression, ect) and called Evinrude. The Evinrude tech told them that by looking at the motor history, it should have an M2 gearcase, and considering all other data looked okay, the problem could very well be caused by the L2 gearcase. Has anyone heard of the L2 causing a running condition as I described? The new M2 case comes with a replacement muffler, could this be a back pressure issue? </td></tr></table>

I am no expert but by the tech making that comment it suggests that the history report showed some high temps in your cylinders. He is suggesting that the L2 was not getting sufficient water to the block. I cant recall anything else that would show on the engine report that would have anything to do with the gearcase.


That being said I never once had problems with the L2 getting water to my motor on my phoenix. I have a theory that the water issues were more pertaining to rangers for some reason. I dont know maybe the water comes off the hull in a bad way for the L2. It was awesome on my phoenix until it blew up and now I got the skeg off the titanic strapped to my motor. (M2).

[cjaswegan]

Well, weeds cause a lot of overheats. Even when I think it's clear, I've had to stop and clear weeds from the screen. That could certainly effect the volume of water making it to the motor, although I've never run it in the overheat condition longer than it takes to turn it off.

[bigbass225]

Ok Chris here's my story, it dont have anything to do with the lower unit! My 2011 that came stock with the M2 has been doing it since new. I cant get anyone to fiure this problem out! I switched to a smaller prop and it does it all the time between 5700-and 6000 rpms just like the motor is starving for fuel. I put a bigger prop on that dont get over 5600-5700 rpms and it hardley ever does it, so it seems that the engine when its really getting wound up starves (I would equte it to a rev limiter feeling almost) and I had my tach checked and it is right on. I see someone mentioned something about the fuel bulb please clue me in! Thanks

[cjaswegan]

I sent you an IM. Right now I can't say I'm seeing the problem. There is certainly an argument at some level as to what the culprit is. I guess I took the advice of two sources.

[boogerdoc2]

did the advice you recieved work?

[cjaswegan]

Given that I was fishing a tournament the weekend after getting somewhat conflicting advice, I did both right away. I know that doesn't make me a very good troubleshooter, but I don't really feel like running my boat up and down the river testing it instead of prefishing. I ran it hard with a new LU and other fix and the symptom didn't occur. I'm currently only running about 5600 WOT. If I try a smaller prop, will the issue return, I don't know. From my simple minded perspective, both thoughts seem to hold water. Of course, if I was running a '11 motor with an M2 and still having the issue, I'd want to know what was up. So far, I'm happy with my first Evinrude. I do think that the 26 raker II that I was sent with my M2 is a little too much prop. Finally, if you fish shallow weeds, get an M2.

[munchie]

i know for 100% my 5500 miss was the fuel bulb.!!!! boogerdoc told me to try it and it worked. THROW THE DANG THING AWAY!!!!!!!!!. and it has nothing to do with the fuel pressuer sitting in the shop, or the lower unit.

[cjaswegan]

That may very well have solved my problem as well. I wasn't going to spend practice time testing the new LU with the old fuel bulb. I just hit the water with both fixes in place, and so far I'm happy.

[boogerdoc2]

Not my idea or solution but best this isnt discussed on this board unfortunately. Folks get hung out to dry it seems by trying to make something they love and have dedicated their lives to better.

[SEAHORSE]

<table width="90%" cellspacing=0 cellpadding=0 align=center><tr><td>Quote, originally posted by cjaswegan &raquo;</td></tr><tr><td class="quote">That may very well have solved my problem as well. I wasn't going to spend practice time testing the new LU with the old fuel bulb. I just hit the water with both fixes in place, and so far I'm happy.</td></tr></table>

<table width="90%" cellspacing=0 cellpadding=0 align=center><tr><td>Quote, originally posted by boogerdoc2 &raquo;</td></tr><tr><td class="quote">Not my idea or solution but best this isnt discussed on this board unfortunately. Folks get hung out to dry it seems by trying to make something they love and have dedicated their lives to better.</td></tr></table>

To find out if a primer ball is at fault, lightly hold the ball while someone is driving the boat at full speed and see if you feel a vibration in it. A faulty check valve inside of it may start spinning or vibrating which can cause aeration in the fuel that sometimes results in a high speed roughness. This is assuming that the bulb is not the cause of a fuel restriction at any speed.

[cjaswegan]

I just want to clarify that I have no axe to grind. I'm not out to prove or disprove anything. I just want to go fish, and over the years I've found it's best to try to learn as much about your equipment as possible. Hopefully my questions aren't rubbing someone the wrong way.