Topic: Shaft Length – Antique Outboard Motor Club,Inc

This topic has 11 replies, 9 voices, and was last updated 9 years, 9 months ago by vintin.

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August 9, 2015 at 12:46 pm #2222
twinrudes
Participant
Morning,
I have a pair of Evinrudes I’m putting on the back of a PY Woody.
I’m hoping the pic I’m attaching will work.
Do I need the shafts to be longer?
Thanks,
John
August 9, 2015 at 1:03 pm #21743
kerry
Participant
US Member
Yes. Looks like you have short shaft (15") motors on a 20" or so (long shaft) transom.

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August 9, 2015 at 2:40 pm #21749
Casey Lynn
Participant
US Member
You may hear the exhausts with that set-up.
I believe you can run it as far as cooling goes with no issues. I would.
As far as ventilation, the props can be sent off and cupped to take care of that in short order. See what you have first.
August 9, 2015 at 3:27 pm #21753
beerman57
Participant
No, you’re fine. The cav. plates are actually a little below the hull. Tilt the motors to where the cav. plates are parallel to the hull and take another picture. Nice shine on those props!!
August 9, 2015 at 4:26 pm #21756
chris-p
Participant
Maybe my eyes but the cav plates look about 2" higher than the keel to me? Cooling wise should be ok. As Pappy said, try it and see if it ventilates or not. Probably be ok in the straights, but may ventilate in the turns.
August 9, 2015 at 4:46 pm #21758
frankr
Participant
US MEMBER PAY BY CHECK
To me, the plates look just right in relation to the boat bottom where they sit. Yes, it might ventilate in a sharp turn. You will just have to try it. Putting it down another 5" (long shaft kit) would make them way too low.
August 10, 2015 at 12:04 am #21797
beerman57
Participant
Don’t forget, the camera angle is from about 6” below the line of the hull.
August 10, 2015 at 2:18 am #21810
twinrudes
Participant
Thanks for the input guys,
I have the motors spaced and mounted now, I’ll take a new photo tomorrow.
I have extensions for these motors, but it seemed that would make them way too deep.
John
August 10, 2015 at 3:03 am #21815
mini-motors
Participant
I think the extensions would make it too deep as well. But it looks to me as if the cav plates are a bit high in the inside, but also the angle looks like it will need to be trimmed up a bit, and it could let air in. I’ve always started out with the cav plate as close to parallel to the hull, with maybe just a little kick upward.
August 10, 2015 at 2:09 pm #21828
Michael Anfossi
Participant
International Member
Nice looking props. If you do not mind telling, what brand and size are they? Might like to find one of those for myself, thanks
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