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Post by gre2 on Jan 30, 2008 0:37:33 GMT
I have decided to get a Kiwi prop for our SO 37. We have the Yanmar 3GM30 engine but unfortunately I don't know the reduction ratio on the transmission. It is a 2001 model. Can anyone with a SO 37 and same motor give me the specs that you used for your Kiwi prop. Thanks
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Post by MartyB on Jan 30, 2008 20:56:51 GMT
I found my reduction ratio on the back side of the transmission of my 85 Arcadia with a yanmar. You might look there if no one gives you and answer.
Marty
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Post by panoramix on Feb 2, 2008 14:18:42 GMT
I have a SO37 build 2003. It came with the standard 2 blade propellor. Engine is Yanmar 3GM30F.
The gear ratio is 2.62
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Post by so40gtb on Feb 7, 2008 4:13:58 GMT
I have a Kiwi on my '01 SO34.2. Here are the specs that I provided to Kiwi and John Blundell confirmed as correct for my boat:
Yanmar 3GM30F, 3600 rpm, family YYDXM0 95P3N, transmission Yanmar KH2P with gear ratio 2.21. Shaft diameter is 25mm.
I found this info on the nameplates affixed to the engine and transmission.
Too bad that I didn't read this before yesterday, as I visited my boat to renew the moisture absorbent and otherwise check to see how it's surviving winter. Today's foot of wet snow ensures that I won't be back to the yard anytime soon.
Karl
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Post by MartyB on Feb 7, 2008 14:44:13 GMT
If you could get back to the boat, nd if it is in the water, a pic with a foot of snow on it would be cool for malcolm to put in next months up day, ie for the back drop pic! Yes I am laughing and smiling while typing this!
Marty
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Post by so40gtb on Feb 8, 2008 3:57:51 GMT
Marty,
Laugh and smile all you want! And enjoy all that dreary rain out there while contemplating the possibility of tsunamis and your boat in Lake Union instead of Puget Sound, with no effort whatsoever on your part!
Unfortunately, the photo would be of snow piled up neatly on either side of the hull and cradle. My boat has a plastic-impregnated winter cover that provides a 45-degree downward slope and sheds snow with a vengeance. The adjacent boats have canvas covers that do the same, though not quite so efficiently as mine. And I would probably have to don my snowshoes and hike into the yard from the street to get the shot.
The stern swim platform does accumulate snow, so I might trot down to the yard right after the next snowfall and see if it's photogenic. It was rather ugly on Tuesday.
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Post by MartyB on Feb 8, 2008 4:02:17 GMT
LOL
I am a bit north of lake union. A tsunamis would put me in lk ballinger or the north end of lake washington! If I went east. I have a pic somewhere from the first part of last march, with about 2" of snow at 8 am on my boat in the marina. Oh by the way, no rain today, but supposidly blizzard conditions in the cascades, and gale winds other wise, so a fun day for sailing if I would have gone out. I do have a race scheduled for sunday, forcast is 10-20 knots!
Rain overall this winter has not been too bad. A bit above ave.
Marty
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Post by Jeff Motley on Feb 8, 2008 16:57:47 GMT
Recent shot of our Clubhouse and floats after the snow this week. When we went racing, it's buckets of seawater over the deck and cocpit to make sure we don't slip into the drink Jeff www.ehyc.org/ |
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Post by MartyB on Feb 9, 2008 1:18:23 GMT
That looks like fun Jeff, sailing in the snow. I think some were doing that the first part of Jan in the around Vashion Island race locally!
Not sure if I will get to the mtns tomorrow to play in the snow or not, but will see. Last week rhe pass was closed due to too many avalanches, and road closures etc.
Marty
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Post by MartyB on Feb 19, 2008 5:58:13 GMT
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Post by gre2 on Mar 21, 2008 18:12:59 GMT
Hi Karl
thanks for the post. It seems that the gear reduction on our SO 37 is the same as yours, ie. 2.21:1..thanks. The other questions I had was as to whether you are happy with the Kiwi prop. Garry Grant Liberte' SO 37
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Post by so40gtb on Mar 22, 2008 2:32:22 GMT
Gary,
I am happy with my Kiwiprop, after one complete season. My opinions can be found on several different forum threads on the Kiwi topic.
To summarize, the drag when sailing seems to be minimal. Prop walk is minimal. Reverse power is awesome - it's amazing how quickly you can stop the boat with reverse thrust. It seems to be a bit anemic at the highest forward RPMs, but that's not how I run the boat in any normal situation. Do note that you should engage reverse gear when sailing in excess of 5.5-6 kt to avoid drive shaft rotation. No serious complaints.
-- Karl
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