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Should I re-power with Etec 90 HO
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| Dolan84 |
Posted on 01/25/19 - 11:08 AM
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Now Evinrude has a 10 year warranty on their engines. Should I go with the 90 HO vs the 90 Etec. I will be putting it on a 1984 Montauk 17 any feedback would be great.
I know there are threads out there that have discussed this. Please advise as to where I might view and read prior discussions.
Thanks
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| Phil T |
Posted on 01/25/19 - 11:15 AM
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Both are good choices.
Keep in mind:
The E-TEC 90 is an inline 3 cylinder engine that weighs 320 lbs dry. Has an undercowl oil tank.
The E-TEC 90 H.O. is a V4 engine that weighs 390. It also has an external oil reservoir. The output is ~112 hp.
Start with this thread and read the threads linked in the discussion.
http://www.whalercentral.com/forum/vi...ost_154274
1992 Outrage 17 I
2019 E-TEC 90, Viper 17 2+
2018 Load Rite Elite 18280096VT |
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| defullerjr1 |
Posted on 01/25/19 - 1:57 PM
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I re-powered my 2003 Montauk 170 with a 2018 E-TEC 90HP with a 17 pitch Viper prop and I love it. Huge improvement over the original Merc, which served me well. Very quiet but has a distinctive sound like no other outboard. No more blue smoke which my wife loves. Considered HO but with weight savings I installed 22 gal Moeller tank. Boat jumps out of the water and is on plane immediately. Scary fast too.
Edited by Joe Kriz on 01/25/19 - 2:02 PM |
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| JRP |
Posted on 01/25/19 - 5:53 PM
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Between those two choices, I would opt for the regular 3-cylinder 90 Etec. Minimizing weight on the transom is very beneficial on the older Whaler designs. And eliminating the clutter of a remote oil tank on a small boat is another big benefit.
19 Outrage II (1992) |
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| action |
Posted on 01/25/19 - 7:26 PM
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I have an ETEC 90 on my 1988 Montauk and love it. With the Moeller gas tank and internal oil reservoir it is a perfect set up.
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| Dolan84 |
Posted on 02/01/19 - 1:54 PM
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Thanks for all of your input. I will be taking it to the shop next week to have the motor mounted.
What would be the best prop for this application? I just don’t have any idea about prop selection.
Should I move the battery to the console?
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| Perk Hazlegrove |
Posted on 02/01/19 - 3:01 PM
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I Put the 90 HP I3 motor on my 1966 Nauset, mainly due to weight considerations. I also mounted the battery under the console as well as the gas tanks. Added advantage is a much cleaner and uncluttered aft area. Couldn't be happier - this thing goes faster than I want to. As far as props go, I chose an Eninrude 4 bladed Rogue prop, mainly because it offers a bit more bow lift, and it was a good decision for me.
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| Perk Hazlegrove |
Posted on 02/01/19 - 3:09 PM
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Sorry - Meant to say stern lift.
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| Phil T |
Posted on 02/01/19 - 3:24 PM
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I, personally, would move the battery. I did this on a Montauk 17 and an Outrage 17 I.
As for props:
Don't be concerned the sizes are different. Blade design is not uniform.
Mounting height - Engine should be 2 holes up unless noted.
For an E-TEC 90, member recommendations include (in no order):
13.5 x 20” Raker
13-7/8" x 19” BRP Viper
13-1/4" x 19” SST
13-1/4" x 17” Turbo 1
For the E-TEC 90 HO:
13-1/4" x 17" Turbo 1 (+3 holes up)
13-7/8" x 19" BPR
1992 Outrage 17 I
2019 E-TEC 90, Viper 17 2+
2018 Load Rite Elite 18280096VT |
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| ursaminor |
Posted on 02/01/19 - 3:25 PM
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Hi Dolan, congratulations on the new engine, you’ll love it.
Assuming you are going with the 3 cylinder 90, I believe the current propeller of choice is the Evinrude 17 pitch Viper mentioned above. We have a Stiletto Advantage that’s no longer available new, it was the preferred propeller when we repowered. You should make sure that the engine is mounted 3 holes up for best performance.
We have the 2012 version (3 cylinder) on our 1989 Montauk 17, it’s a great engine that’s light enough to let the boat perform well at low speeds (important when it’s rough) and powerful enough to yield 40+ MPH top speeds. We didn’t need to move the battery on ours.
Good luck, let us know how it runs!
1989 Montauk 17 / 2012 90 HP Evinrude E-TEC |
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| action |
Posted on 02/01/19 - 6:59 PM
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On my 1988 Montauk with ETEC 90 I run a Viper with 15" pitch
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| Dolan84 |
Posted on 02/02/19 - 5:33 AM
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What is the determining factor for mounting the engine at the two hole or the three hole points?
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| Phil T |
Posted on 02/02/19 - 7:18 AM
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Factors include:
The anti cavitation plate be at or just below the surface of the water when on plane and engine trimmed.
The measurement of the lower leg.
The make and model of prop. Some models do not perform well when mounted high (or low).
The E-TEC 90 and 90HO have been used extensively by Boston Whaler owners who have reported their performance and rigging information. It is due to this data we can provide the recommendation so easily.
1992 Outrage 17 I
2019 E-TEC 90, Viper 17 2+
2018 Load Rite Elite 18280096VT |
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| JRP |
Posted on 02/02/19 - 11:53 AM
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Dolan84 wrote:
Thanks for all of your input. I will be taking it to the shop next week to have the motor mounted.
What would be the best prop for this application? I just don’t have any idea about prop selection.
Should I move the battery to the console?
Dolan84 wrote:
What is the determining factor for mounting the engine at the two hole or the three hole points?
Which engine model did you choose? The 90, or the 90 HO?
19 Outrage II (1992) |
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| Dolan84 |
Posted on 02/02/19 - 12:37 PM
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I am going to go with the standard 90 horse power.
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| Dolan84 |
Posted on 02/09/19 - 10:02 AM
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Dropped of the boat to the Evinrude dealer in Moss Point, MS yesterday. Should be able to pick it up by the end of next week. It is now time for me to get a little excited. I will be posting pictures latter.
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| Joe Kriz |
Posted on 02/09/19 - 12:26 PM
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Dolan, I didn't hear anyone saying you probably would need to drill 2 new holes in the transom for raising the motor up.
Did you give the installer the diagram for drilling the 2 GREEN holes?
http://www.whalercentral.com/articles...icle_id=82
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| Dolan84 |
Posted on 02/10/19 - 4:56 AM
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The engine i removed was a 1990 Evinrude 88 SPL. The lower mounting bolts were well within the splash well area. I do not have any measurements of the existing drilled holes for reference to the diagram you have above. I did talk with the owner and the technician. They have mounted several of the 90 hp’s on other 17’ Montauk. I will talk to them Monday and query them further on their mounting plan and i will forward the link to them as a reference. Thank you for the input Joe.
Charlie
Edited by Dolan84 on 02/10/19 - 6:14 AM |
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| Dolan84 |
Posted on 02/11/19 - 7:34 AM
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I spoke with the dealer this morning about the issues that where metioned above. They will not have to plug or re-drill the transom. The existing mounting holes will be used. The engine will be mounted two holes up. All is set.
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| Joe Kriz |
Posted on 02/11/19 - 1:12 PM
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Great. We would like to see photos when the install has finished.
The earliest I have seen the splashwell being deeper on a 17' model was 1987.
Would like to document your splashwell as being deeper.
Here is a project album where walgrade drilled the lower Green holes in transom of his 15' model. Same procedure as the 16/17' Classic models.
http://www.whalercentral.com/userphot...lbum_id=64
Here is another member that drilled the Green holes on his Nauset 16
http://www.whalercentral.com/infusion...ser_id=291
Edited by Joe Kriz on 02/11/19 - 1:27 PM |
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