I wasn¹t going to get into this, but I would suggest that the sound be put
into perspective. The problems getting described now are going into realms
of mis-adjustment and misalignment that I don¹t think have been warranted
yet.
My propshaft makes a kind of a whine at idle in forward, which goes away at
about 1000 rpm and above. The sound is definitely related to the propshaft,
since it goes away in neutral and in reverse.
It has been doing that for the six years that I have owned the boat (when
the engine feels like running at all) and there is no particular ill effect
on the shaft, stuffing box, etc. There is no significant misalignment,
although it should be remarked that the alignment is bound to shift at
little bit when a boat is hauled and relaunched year after year. The packing
nut gets adjusted to about one drop per minute, per specks.
--Dave Shugarts
C-27 #4866 Cahoots (1981)
SR, A4, Tiller, Dinette
Newtown (Housatonic River), CT
E-mail: [EMAIL PROTECTED]
Website: http://www.BoatDiddly.com
~~~~_/)~~~~~~~~~~~~(\_~~~~
~~~~~ (\_~~~~
On 11/23/06 9:20 AM, "Mike & Dee" <[EMAIL PROTECTED]> wrote:
> Aqua,
> If the shaft makes noise when turning it could indeed be alignment. If the
> shaft is severly out alignment, the shaft can rub the log (thru hull tube).
> It won't take long to wear through. When that happens the boat sinks! You
> can determine if this is the case by examining the gap between the shaft and
> the tube, that would be from the wet side. The gap should be roughly the same
> all around.
> Mike Wilson
> Zephyr 5431 83 t/r
> Satellite Beach, FL
>>
>> ----- Original Message -----
>>
>> From: Don Brooks <mailto:[EMAIL PROTECTED]>
>>
>> To: [email protected]
>>
>> Sent: Thursday, November 23, 2006 8:45 AM
>>
>> Subject: Re: catalina27-talk: RE: propeller drive shaft.
>>
>>
>>
>> Aqua,
>>
>> Sounds like you need a engine/prop shaft alignment. Probably, the engine
>> has settled on the bed. The prop shaft has been scouring the stuffing box
>> cap. When the cap was tightened, new metal was introduced for the shaft to
>> rub on. Next haulout or whenever you are brave enough to swim under, make
>> sure the prop shaft goes through the center of the opening in the hull. My
>> guess is the stuffing box gets hot after being run a while. That should
>> never be, only warm. Hot is telling you something is wrong.
>>
>> Don, #6293, Niceville, FL
>>
>> [EMAIL PROTECTED] wrote:
>>
>>>
>>> Dear List Mates:
>>>
>>>
>>>
>>> I had the guy at the boat yard tighten the packing gland on the drive
>>> shaft.
>>>
>>> Now when the boat is in drive, there is a whistling sound.
>>>
>>> When I put the boat in neutral, the sound stops.
>>>
>>> When I put it in drive it makes the whistling sound, but when I increase
>>> the rpm's a little, the whistling stops.
>>>
>>>
>>>
>>> Could this sound be a result of tightening the packing gland to tight ?
>>>
>>> If Not, then what could be the problem ?
>>>
>>>
>>>
>>> The boat is a 1977 Catalina 27.
>>>
>>>
>>>
>>> Any suggestions are greatly appreciated.
>>>
>>>
>>>
>>> Thank you.
>>>
>>>
>>>
>>> Aqua Boogie C 27
>>>
>>>
>>
>>
>>
>>
>>
>> Everyone is raving about the all-new Yahoo! Mail beta.
>> <http://us.rd.yahoo.com/evt=42297/*http://advision.webevents.yahoo.com/mailbe
>> ta>
>
