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Crosbyman

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Reply with quote  #16 
I would not blame ETEC technology… my 75hp is 14 years old  about 400 hrs … T&T resealed last summer …. the rest (code 38s)   was fixed.  

 no major issues   starts  on a dime  every  Spring  wake-up             trolls all day  runs great at 5200 rpm 

mountings  bolts cracks on the  lower 2 covers   but  at $1500....         I fixed them myself  with Bondic  glue  and some  epoxy  in fiberglass cloth ...still holding [smile] 

see utube if you need to clean your injectors by yourself…       up to you [thumb]

http://www.etecownersgroup.com/post/show_single_post?pid=1304226105&postcount=6&forum=136483



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ETEC 75 HP  2005  ser# 05107924  &  1966  9.5 hp  Sportwin 9622a 
jzambroski

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Reply with quote  #17 
Paul,

Let me start by saying... I too have an Etec 90 like yours that I purchased in 2014. And MANY other Evinrude motors throughout my life since my teanage years! I'm 70 years old and a retired mechanical engineering designer by profession of nearly 34 years. I have an aptitude for mechanical products design with electrical, optical & imaging design interface. I still posses a 1954 Evinrude Super Fastwin 15 and a 1958 Johnson Seahorse 18. Both of which have been in service for countless hundreds of hours! I am a member of the AOMCI club (Antique Outboard Motor Club International)! Near as I can recollect, I have owned at least 15 Evinrudes & 3 Johnson outboards all together since my boating life which began at 3 yrs. old! I have owned several other historical make engines as well. I have not spent more than $400 (US dollars) on my 90 Etec in all the time I've owned it! The amount of your expenses is WAY out of line & not by any means typical! Only minor warranty work done on mine was replacement of a tilt solenoid 2 years ago.

I have had only 2 engines with any major powerhead problems. All for reasonably explainable problems. One was a 1976 175 HP V6 that kind of was my problem due to running lean with a stuck lift pump diaphragm & not staying on top of the problem. The other was a 1984 (approx.) Johnson 140 HP that essentially was due to governmental fuel reformulation which removed lead from motor fuels causing lubrication problems.

ALL my credentials and $15 for a cup of coffee aside, I am HUMBLY trying to say this:
My professional & personal experience with Evinrude tells me that it is an advanced well designed innovative product throughout its long history with few exceptions. It begins to sound like your dealer may not be up to the task and may be looking at you as a lucrative source of revenue generation.

Have you been in touch with customer service about your problem? The detailed suggestions given by others are excellent but may not be necessarily needed so far as compression & leak down are concerned. Proper pressure & temperature anomalies are easy to diagnose and fix... which may be some of the driveability problem.

If the dealer is actually the root of ongoing problems & expense your impression may be unfounded. Unfortunately, if a dealer is incompetent or unscrupulous, they can be lending a false impressions that the product is the problem. Try another dealer even if less convenient before you blame & deep six Evinrude. Other brands have their problems too. And your reference to individuals with other brands may be related to more knowledgeable and competent dealers. I encourage you to follow through with another well regarded dealer before spending even more money on switching to another brand.


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Best regards,
Lakerider [smile]

Model : E90DSLAFA
Serial Number : 05423492
paulbiom

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Posts: 42
Reply with quote  #18 
No hate at Evinrude, my last engine was a 10 year old 90HP Ficht with 800 hours, run on the same petrol, no additives, no filter, 6mm fuel lines, whatever battery was available locally (usually motor) and wing nuts galore.  Never ever had a problem.  Not once did it miss a beat. Annual service and job done.  Had a few Johnson kickers over the last 30+ years a well.  Zero brand loyalty, just wanted something that would get me home safe and burn less fuel than the Ficht, the e-tec was pushed HARD by the dealer that serviced the Ficht.  Probably a sales quota thing.  Had money to spend, so I bit.

I live on an island nation with 1 authorised Evinrude dealer, 4-5 marine engineers in total, that's yer lot.  At this point I doubt any know anything about e-tec technology despite selling it. It's a pretty harsh marine environment hence spending £3500+ on what was supposed to be preventative maintenance.  Not to mention gutting the electrics and fuel systems when I had the e-tec fitted in 2012 (thanks to this forum, not the dealer who just left everything as above on fitting).  I have never owned anything mechanical that has been as babied as this engine. That's why I'm annoyed at having problems when the several hundred other boats running 4's, old 2's in the same approx rigging as my previous Ficht carry on regardless.  It's a small place we know when people are having problems.  Trust me the other couple of owners I know with lesser hours on theirs are asking me as many question as I'm asking on here!

I've still got at least another week until all the bits I need will be here (another £300 spent) and I can start down the serious DIY route as suggested by other posters.  Then I'll need some weather, so far 4 days of 45mph winds and counting. 

Just in case I've priced up an injector replacement, including local premium approx £1000.  Hopefully my £35 can of Evinrude Engine Tuner and some 2+4 will do the trick!





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jzambroski

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Reply with quote  #19 
Paul,

Gotcha sir! I just want to make sure fairness & justice is done and all due considerations & factors are taken into account as far as truthful consideration for product reputation is concerned.

We live more & more, in a highly technical & ever more complex environment these days. In just about every facet of life and EVERYTHING we do. If you'll pardon my crude analogy... it has been getting to the point... where you need a master's degree just to sit on the throne & wipe your butt! Or so it seems. Technology has brought us many benefits & opened doors to new horizons. But, all technology is a double edged sword! On the one hand good things, yet a host of other potential problems & bad things. Which few want to think about or admit. The "new & marvelous" benefits... is all people see & hear portrayed. And in balance, potential downside is seldom identified & made known. So that, one can make fair decisions as to their wants, needs & preferences.

I say all this to make a point. That is... 2 stroke (or 4stroke) DIRECT fuel injection, 4 stroke PORT fuel injection (which many other 4 stroke outboard competitors use) and natural aspiration... are all very different fuel delivery technologies. Each with similar but unique different benefits, detractions & SENSITIVITIES. Making these systems with their unique complexities highly dependant on service engineer's knowledge & competency level CRITICALLY important. Dealer competency... is highly critical (& maybe even more so) important... than the product itself. And plays a HUGE part in consumer's perception of product reliability & quality. A well designed, manufactured & marketed product's perceived reputation can be quickly destroyed by stupid ignorant bumbling incompetent idiot's businesses that really don't give 2 flying hoots about the consumer and reputable solid repeat customer bases. It's sometimes just a quick one time grab & go or a keep on stringing them along operational philosophy taking advantage of customer's uninformed condition making them "ripe for the plucking".

In the end I hope you're aware & take all these things into account before you make a decision to move to purchase the competition. The grass is not always greener on the other side. Even thought it may seem to look that way... & others tell you it is! As that Dos Equis commercial says "choose wisely my friend".

Sincerely... good luck!

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Best regards,
Lakerider [smile]

Model : E90DSLAFA
Serial Number : 05423492
paulbiom

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Posts: 42
Reply with quote  #20 
Just to close this up - everything checked out fine with the fuel system, no pressure issues.  Injectors were fine, every test I could do ended up being within permitted range.  Temperatures 45c at WOT, 63c at idle.  Running on a small tank with fresh fuel produced the same miss fire. So I decarbed the living hell out of it and it's cured 99% of any rough running.  The amount of crap that came out of it was unbelievable, I was not very popular down the marina that day. There is still a slight miss at mid range but it clears itself very quickly and besides it's probably always done that but I've never been listening out for it.

I used Evinrude engine tuner through the throttle plates and Mercury Quick Clean in the tank (Could not get the Evinrude stuff delivered here for love nor money).  Half filled the water separator with the quick clean to give it a proper shock.   I'll be using a carbon treatment in the fuel going forward.

The only thing I have left to do is to double check the TPS (dealer said it was fine), the engine is only reporting 92 percent load at WOT?  Then it's run it as it is for the last month of our season and do the plugs before next spring.  Will post up an engine report the next time I'm on the boat.

Thanks for all the suggestions and especially the decarbing recommendation.  Local dealer is still insisting that with XD100 oil these engines don't need it.



 



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steelhead

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Reply with quote  #21 
If the dealer won't help you obtain XD100 full synthetic TC-W3 lube, use a comparable 100% full synthetic lube thats far cleaner burning than mineral oil based TC-W3.
Using ethanol free gasoline also helps, higher combustion temperatures thus burning off more of the carbon deposits.

Sounds like you're in EU or SW Pacific.  XD100 is way overpriced with marine shipping, trade tariffs and VATs

Couple suggestions.  Many more out there especially in EU

http://catalog.lubricants.total.com/en/products/lj1-4/NEPTUNA-2T-BIO-JET

https://www.ravenol.de/en/product-range/2-and-4-stroke-engine-oils-1/ravenol-outboardoel-2t-fullsynth/
paulbiom

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Posts: 42
Reply with quote  #22 
That's really helpful thanks, I can get XD100 locally but it costs $85-90 a gallon so always open to alternatives.  Can I run those on the XD100 engine setting?  I've always ran XD100 on the XD100 setting up to now but willing to break from the local dealer altogether.

It was the Evinrude Carbon Guard that I found impossible to get, they won't transport it by air and shipping costs were so extreme nobody would touch it.  We have a big Mercury dealer here so I subbed for Quick Clean that worked very well.  Open to any suggestions for alternatives?

Fuel here is actually decent, minimum of 95 RON and I always add Stabil 360 Marine out of habit. 

Overall I'd guess my carbon issues are just 7 years of running the engine in rough seas where WOT is usually nothing more than a dream.   

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steelhead

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Reply with quote  #23 

The Total and Ravenol are both very high quality full synthetic TC-W3 rated lubes.
The usage on either the XD100 or the TC-W3 EMM setting would be similar rates.  Personally, I would run on the TC-W3 setting, just in case you ran into the situation that a full synthetic lube was not available on trip or in location.
I've messed with both rates, don't notice much if any use difference.  Rates are definitely NOT 50:1 and 100:1, completely calculated dynamically real time based upon engine load, rpms, motor temperature, air temperature, and other sensor inputs.

Using a full synthetic TC-W3 lube drastically reduces carbon buildup on either setting.

What lube have you been running?

Another option to the Carbon Guard is Yamaha Ring Free, works as well and is available world wide in many dealers.  I've also used Chevron Techron Concentrate+ and Gumout Regane, both with PEA poly ether amines chemistry 25>50% concentrations for GDI engines when CG or RF was not available.

With all the GDI engines developement in EU now, should be easy to find a high quality GDI combustion chamber cleaner.

rickmcd53

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Posts: 2,491
Reply with quote  #24 
A note on TPS. The 75/90 hp engines from the factory go up to about 88 percent throttle and the throttle plates do not open all the way. Others have reported making various adjustments to get a higher throttle percentage and gaining 1 mph. Since the optimum power comes at 5200 rpm there is very little benefit in trying to get 100 percent throttle.
I an a certified Evinrude tech and spent a few hours on the water with my personal 75 hp and got percentages up with no gain in performance.
I guess I am the typical mechanic, since I run mine 40 weekends a year, I just put in regular pump gas, turn the key and go. My first 75 did 1500 trouble free hours, changed gear pill ever two years and changed plugs and water pump every 500 hours. Put 500 hours on my second 75 and did a service before I sold it. Got 400 hours on my current pontoon 90 and thinking it might be time to give it some attention.
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