Evinrude "Never Needs An Oil Change"

[twowheelnut]

So, I'm sitting there last night, surfing the gawd awful Sunday line-up on 180 channels, when I hit OLN and a commercial is running for the new Evinrude E-Tech four strokers. That's not what caught me, but what did was the announcer was saying, "...and you never have to change the oil! Ever!" :blink: You need only inspect and add oil if necessary. :huh: Say what?!

pdf of Maint. Sched.

Main page for more PR

Jebus! And it only needs 'service' every 3 years or 300 hours! mg: I don't know how much the boating world has changed since I sold my 27' Chaparral, 8 years ago, but dang-it, man! My boat was a service pig, needing oil changes every 3 months or 30 hours, IIRC, plus regular service twice a year on average. When are we going to get the benefit of this new fangled technology?!

 

[mech 1 twa]

I think you missed the boat on this one. :blink:

E-tec is a 2 stroke engine.

Direct injection 2 stroke.

 

[twowheelnut]

I think you missed the boat on this one. :blink: E-tec is a 2 stroke engine.

Direct injection 2 stroke.

D'oh, right. Heard 'as compared to' and stuck as 'is'. Then read it the same way. Still...

 

[mech 1 twa]

2- strokes will make a come back, if manufactures want to spend the money.

70's and 80's 2-stroke ruled MX bikes. Light weight, powerful. Now 4-stroke is king.

Newer bikes HIGH maint. $100 for a valve, titanium. 4 and 5 valve heads, big bucks for a rebuild.

I could rebuild a 2-stroke for the price of 1 valve. New piston, rings, gaskets.

Time will tell.

 

[jestal]

Yep, the Evinrude E-TEC is a direct injection two stroke. Much less oil is needed (compared to other two stroke engines that run "wet" crankcases) since the crankcase is dry and there is no gasoline to dilute the oil injected.

Bombardier bought Evinrude. Bombardier has put other technology in the two strokes in Skidoo snowmobiles to reduce emissions, reduce smoke, reduce fuel consumption, etc. Those engines use EFI with the injectors in the transfer ports. Same advantage of a dry crankcase as with DI but much less expensive hardware AND none of the fuel flow limitations of a DI system. The injection into the transfer ports can simply add injectors as required for more power output/requirements.

Two strokes are definitely not dead.

 

[twowheelnut]

Yep, the Evinrude E-TEC is a direct injection two stroke. Much less oil is needed (compared to other two stroke engines that run "wet" crankcases) since the crankcase is dry and there is no gasoline to dilute the oil injected.
Bombardier bought Evinrude. Bombardier has put other technology in the two strokes in Skidoo snowmobiles to reduce emissions, reduce smoke, reduce fuel consumption, etc. Those engines use EFI with the injectors in the transfer ports. Same advantage of a dry crankcase as with DI but much less expensive hardware AND none of the fuel flow limitations of a DI system. The injection into the transfer ports can simply add injectors as required for more power output/requirements.

Two strokes are definitely not dead.

Izzat the 'Orbital Technology' as well or something different?

 

[charismaticmegafauna]

Izzat the 'Orbital Technology' as well or something different?

Orbital is a rotary engine -- what we've been talking about here have been permutations of reciprocating engines. A Wankel is a rotary -- btw, almost any kind of pump can be made to run somewhat with the addition of fuel and spark. Before the Wankel was an engine it was a pump (air pump, compressor, super-charger).

E-TEC: Evinrude put it on the market but it was a failure -- Bombardier made it work.

'mech 1 twa': <snip>I could rebuild a 2-stroke for the price of 1 valve. New piston, rings, gaskets.

(Maybe not you?) -- but it's been my experience that alot of 2-stroke engine repair is "quick & dirty" and merely just gets the engine running again. Contrary to conventional wisdom; the piston/cylinder-wall interface on a 2-cycle engine is of critical importance -- especially, if original power output is to be achieved (not just merely running). Even tho they look simple, all the separate functions of a 4-stroke are happening, often, several at once. Seemingly little things become more important, imo.
A side note: at the local general-store in town are Stihl chainsaw leaf blowers with 2-stroke engines with poppet-valves (ala 4-stroke) and lubed with pre-mix. I'm told they start real easily, are quieter, pollute less, and they said they'll run (without damage) for more than a tank of straight gas (in-case someone forgets to mix).

'jestal': Two strokes are definitely not dead.

Agreed, power : weight is just too advantageous.

And... there's nothing new under the sun -- well, almost.

 

[jestal]

Orbital is a rotary engine -- what we've been talking about here have been permutations of reciprocating engines. A Wankel is a rotary -- btw, almost any kind of pump can be made to run somewhat with the addition of fuel and spark. Before the Wankel was an engine it was a pump (air pump, compressor, super-charger).
E-TEC: Evinrude put it on the market but it was a failure -- Bombardier made it work.

Actually....Orbital was an Australian company (I believe they were Australian originally) that perfected a method of direct injection for two stroke engines. It's fuzzy in my memory as to who licensed what direct injection technology but I would have said that the Evinrude system did originate with Orbital. Don't quote me on the origins of the Evinrude system but Orbital was difinitely a DI technlology company...not just the name of a sort of engine.

 

[radman]

Sarich Orbital Engine

 

[twowheelnut]

Sarich Orbital Engine

Yeah, yeah, yeah, Mr. My Memory Is Better Than Yours... But this is what I was thinking of:

Ralph Tony Sarich (born December 10, 1938) is a West Australian multi millionaire businessman and qualified engineer who was responsible for developing the Orbital Engine in 1972. Also developed the orbital combustion process engine, which is based on a re-designed two stroke engine using direct gasolene injection.

Of course, I'm still rather flubbered in the reading/listening comprehension department... :blink:

 

[Scab]

Of course, I'm still rather flubbered in the reading/listening comprehension department... :blink:

I think they call that "mental retardation." Here's your sign.

 

[twowheelnut]

Of course, I'm still rather flubbered in the reading/listening comprehension department... :blink:

I think they call that "mental retardation." Here's your sign.

No, it's called old age brain cell loss and the general lack of giving a real ****. Don't turn around, the same affliction is about to kick you in your ass, birthday boy. Here's your sign:

 

[Bustanut joker]

Of course, I'm still rather flubbered in the reading/listening comprehension department... :blink:

I think they call that "mental retardation." Here's your sign.

No, it's called old age brain cell loss and the general lack of giving a real ****. Don't turn around, the same affliction is about to kick you in your ass, birthday boy. Here's your sign:

Hey! No family reunion pictures allowed :lol:

:jester:

 

[jestal]

https://www.orbeng.com.au/orbital/directinj.../dioverview.htm

Lots of use of the name "orbital"..... And to my surprise my memory was correct. It is an Australian company.

 

[Scab]

No, it's called old age brain cell loss and the general lack of giving a real ****.

..... And to my surprise my memory was correct.

Ooooh, rub his nose in it and smack his ass with a rolled up newspaper.

I like it.

Do it again.