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weegee99

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Reply with quote  #1 
Gents,

Evinrude Etecs have two holes each side under the aeration plate that the good old 35 lower did not. Those two holes allow exhaust gas re-ingestion when in reverse. Backing away from a dock, back trolling, etc. That starves the impeller just enough to destroy it.

Don't accept 'non under warranty' excuses! This is a known flaw of these etecs, and BRP knows it. Older 35's were known for durability in duck sloughs, plowing muck, river sand and NOT failing. Impellers are rubber, rubber accepts a LOT of abrasives without failure.

BRP made the change without competently development testing it. 

All the spring fixes, impellers and thermostats were replaced in mine after multiple impeller failures in distant rather remote lakes in northern Minnesota, and failures continued.

Only after the dealer plugged those 4 small holes did the failures STOP.
Huey

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Reply with quote  #2 
You do realize the two holes under the AV plate need to be covered if using a flusher and the only other two holes, making 4 that you say are plugged, are for draining water out of the gearcase and have nothing to do with flushing or cooling. You do also realise the exhuast that exits the prop hub even when in reverse would not do what you say. Also your comment about springs and thermos have nothing to do with the impeller in terms of failures. Do you have any photos of these impellers that you say you have had fail? The H series gearbox has not really changed from the OMC days and the 3 cylinder Elan and Endevour 25/35HP from back in the day also had these two hole just under the AV plate.
seahorse

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Reply with quote  #3 

What year or model number is your motor?  The very early ones had supplier problems with impellers and many customers had problems but the factory covered the failures.  The pumps were improved and the springs were needed for the additional water pressure the new impellers generated. If your motor was manufactured after 2012, it would have the improved parts installed.

As HUEY stated, gearcase with the 4 holes under the anti-ventilation plate used on the E-TEC 25-30 hp engines have been around since before the E-TECs were introduced.  The owners manuals state to temporarily tape off the holes if you are going to use the 'ear-muff' type of flusher. The manuals for the older motors prior to E-TEC said the same thing.

The holes do not have to be taped up if you use the screw in flusher port on the back of the motor.

There does not seem to be any fix needed if one takes the time to read the owners manual and flush the motor properly as instructed. An excerpt from the manual is copied below and highlighted for your convenience.




From page 55 of an E-TEC 25-30  owners manual:

Using Gearcase Flushing Device

1) Place the outboard in an area with good
drainage.

2) Temporarily cover the two small auxiliary
water inlet holes on each side of the
gearcase with heavy tape to insure enough
water travels to the powerhead from the
water intakes.

Water can drain from auxiliary
inlets, resulting in engine overheat Remember
to uncover the holes after flushing
the engine.


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weegee99

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Reply with quote  #4 
You do realize.....you do realize ...how arrogant. All my information is documented in brp warranty claims, all covered without co-pay and the 4 cooling holes info came directly from Jeff berg of brp. Never had muffs used on it. Good grief, armchair mechanics without data.
seahorse

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Reply with quote  #5 

A know-it-all newbie with an arrogant attitude. Sounds like a recipe for an early departure.

 

Calm down, relax, and learn from some of the best in the industry worldwide and from knowledgeable E-TEC owners, then join in.


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olypopper

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Reply with quote  #6 
I find your description very odd.  I did see several water pump failures early on due to legitimate impeller failures (rubber too hard).  I have dozens of these engines in my area and all are prop models with lots of trolling and zero water pump failures.  If those holes were a problem, BRP would have eliminated them years ago.  
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Huey

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Reply with quote  #7 
Quote:
Originally Posted by weegee99
You do realize.....you do realize ...how arrogant. All my information is documented in brp warranty claims, all covered without co-pay and the 4 cooling holes info came directly from Jeff berg of brp. Never had muffs used on it. Good grief, armchair mechanics without data.


I do not own an armchair and my precious time at home with my kids is NOT spent on the internet.

Yes I have none of your data because you did not supply anything like photos, history report or even serial number, but I have a heap of data from working on all outboard brands for 6 days a week for many many years and as mentioned the OMC/BRP gearcase is basically the same and both have these two holes under the AV plate and both have the leading edge ones, that again have nothing to do with cooling, they allow all the water to drain out of the gearcase when stored vertically.
Nordmann

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Reply with quote  #8 
Check this chap's post on One-Nation. Not a word about above problem, but wanting an answer about idle screw adjustments!!!

Claims to be an engineer and bought a Yamaha Wednesday.

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Huey

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Reply with quote  #9 
I doubt we will hear from this expert again and just added some more data like a coupe of photos of an old 3 cylinder 35HP Johno with same H series gearcase this person claimed did not have these holes. Even see the good old Seahorse logo on the back.

H series gearcase.jpg  H series gearcase1.jpg 

seahorse

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Reply with quote  #10 

Thanks, HUEY.

 

Those with a bully mentality usually cannot accept being proven wrong in front of an audience. That is when they exit the playing field for good.

 

That's  enough for this subject.


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