[C320-list] Autoprop Feedback/dripless shaft seal

[Dick Walker]

Ok send me your email address an I will when I am on the boat this weekend

Cheers

Dick Walker
740 Olive Ave.
Coronado ,CA 92118
619.435.8986



On May 16, 2013, at 17:21, "Welch, Myron D" <myron-welch at uiowa.edu> wrote:

> Dick,
> 
> Thanks for the reply. I like that solution, but where and how did you make the connection? If you have any pictures or drawings, please send them to my email address. Thanks. 
> 
> Myron Welch
> Wind Instrument #238
> Iowa City, Iowa
> Grace Memorial Harbor
> Elk Rapids, Michigan 
> 
> Sent from my iPad
> 
> On May 16, 2013, at 7:04 PM, "Dick Walker" <dickwalker at att.net> wrote:
> 
>> It was inserted into the exhaust water and flows overboard. 
>> 
>> 
>> Cheers
>> 
>> Dick Walker
>> 740 Olive Ave.
>> Coronado ,CA 92118
>> 619.435.8986
>> 
>> 
>> 
>> On May 16, 2013, at 13:53, "Welch, Myron D" <myron-welch at uiowa.edu> wrote:
>> 
>>> Dick,
>>> 
>>> I too updated my dripless shaft seal to the newer vented model ( they sent it to me for free!) last year. Where did you route the vent tube? The PYI suggested placement was not good. Thanks. 
>>> 
>>> Myron Welch
>>> Wind Instrument #238
>>> Iowa City, Iowa
>>> Grace Memorial Harbor
>>> Elk Rapids, Michigan 
>>> 
>>> Sent from my iPad
>>> 
>>> On May 16, 2013, at 11:15 AM, "Dick Walker" <dickwalker at att.net> wrote:
>>> 
>>>> When I ordered my year 2000 C-320 I made the following changes TO THE DRIVE
>>>> TRAIN.  SS PROP SHAFT, FTI DRIPLESS shaft seal and the AUTOPROP.
>>>> 
>>>> They really helped the performance and maintenance.
>>>> 
>>>> With the autoprop at about 2700 RPM on the Yanmar engine I get hull speed
>>>> +/- 7.1 kits. I did not have to perform any modifications to the strut.  I
>>>> use about .6 gallons per hour at 2700 RPM.
>>>> 
>>>> After 8 years I changed the dripless shaft seal to the new model that does
>>>> not need to be burped.
>>>> 
>>>> Here is my in water test
>>>> RPM    2.61 Gear    2.21 Gear
>>>> 1000    4    2.7
>>>> 1200    4.7    3.5
>>>> 1400    5.45    4.3
>>>> 1600    6    5
>>>> 1800    6.4    5.6
>>>> 2000    6.6    6
>>>> 2200    6.9    6.3
>>>> 2400    7.2    6.6
>>>> 2600    7.3    6.7
>>>> 2800    7.35    6.85
>>>> 3000    7.35    7.1
>>>> 3200    7.35    7.2
>>>> 3400    7.35    7.3
>>>> 3600 ft    7.35    7.35
>>>> 
>>>> Cheers and give me a call if you have any questions
>>>> 
>>>> 
>>>> Dick Walker
>>>> WindWalkerII #687
>>>> 619.435.8986
>>>> 
>>>> 
>>>> 
>>>> -----Original Message-----
>>>> From: c320-list-bounces at lists.catalina320.com
>>>> [mailto:c320-list-bounces at lists.catalina320.com] On Behalf Of Brian &
>>>> Christine Borchers
>>>> Sent: Thursday, May 16, 2013 8:49 AM
>>>> To: C320-List at Catalina320.com
>>>> Subject: Re: [C320-list] AtoProp Feedback
>>>> 
>>>> Andrew, 
>>>> 
>>>> Thanks for the info regarding the shaft extender.  Is the extender a plate,
>>>> similar to the coupler? How much extension is needed and what does it look
>>>> like?  Also, do you know the amount of shaft that is needed following the
>>>> strut to accommodate the propeller.  Again, thanks for the feedback.
>>>> 
>>>> Brian Borchers
>>>> Sent from my iPhone
>>>> 
>>>> On May 16, 2013, at 8:34 AM, Andrew Santangelo <andrew_santangelo at mac.com>
>>>> wrote:
>>>> 
>>>>> Brian,
>>>>> 
>>>>> I have had an autoprop on my C320 for the last 15 years - it was my first
>>>> "major" addition to Dawn Treader.
>>>>> 
>>>>> I both cruise and race.  Cruise wise it works excellent in forward and
>>>> reverse (no prop walk).  The performance under power and the fuel economy
>>>> significantly improved.  If I recall, I hit hull speed at a lower RPM.
>>>>> 
>>>>> Race wise it was one of several key improvements.  I have not raced in the
>>>> last few years, but when we did we either placed or won.  When first racing
>>>> as newbs we were dead last always (and I mean last).  After adding the
>>>> autoprop we moved to the middle of the fleet.  (Later additions include fin
>>>> keel, hydraulic backstay, racing sails, racing sheets and halyards, etc.).
>>>>> 
>>>>> Installation requires a shaft extender.  I forget the name/brand of mine,
>>>> but it goes between the prop shaft and the engine.  It also suppresses any
>>>> added vibrations and isolates the prop shaft/prop from the engine (reduces
>>>> rust?).  Without it, the prop will whack the strut, a definite no-no.
>>>>> 
>>>>> 
>>>>> Andrew Santangelo
>>>>> 
>>>>> C320 "Dawn Treader"
>>>>> #333
>>>>> San Francisco, CA
>>>>> 
>>>>> J22 "Blitzkrieg"
>>>>> Elephant Butte, New Mexico
>>>>> 
>>>>> 
>>>>> 
>>>>> On May 16, 2013, at 3:36 AM, Brian Borchers wrote:
>>>>> 
>>>>>> 
>>>>>> Hello,
>>>>>> 
>>>>>> I am considering an Autoprop for our 320. I reviewed some photos  of
>>>> "Nauti - Duck" on the C320 web site and it looked like the strut had a cut
>>>> out, does anyone know if this was done to accommodate the propeller?   Those
>>>> who have the Autoprop or have had an Autoprop, your feedback and experience
>>>> regarding the propeller is appreciated.  
>>>>>> 
>>>>>> Brian
>>>>