[PSUBS-MAILIST] Minn Kota 101 - thread spec

[James Frankland via Personal_Submersibles]

Hi Cliff,,
Others may disagree with this, but ive got a suggestion.  If your oil
compensating the motors and are going to add the wrap around tube\bladder
as per Alecs Snoopy, I would suggest, adding a vent hole somewhere near
the aft bearing.  With my setup, ive put the tube going around the motor
and its all ok.  But, I just cannot get the last dregs of air out.  No
matter what I do.  I suspect that its because the pipe nipple protrudes a
mm or so into the casing and so will not allow the last bit of air out.  It
really irritates me and I worry that the motor is not properly
compensated.  So, I am going to make a modification to the motor like this
pic.  I think this will work, the suspect bit is mating the plug against
the slightly domed motor case.  I think a large rubber washer should seal
it.   The i should be able to rotate the motor and remove the last dregs of
air.  What do you think?
Thanks
James
​




On 19 July 2014 01:38, Clifford Redus via Personal_Submersibles <
personal_submersibles at psubs.org> wrote:

> Thanks
>
>
> Cliff Redus
>
> On Jul 18, 2014, at 7:26 PM, Alec Smyth via Personal_Submersibles <
> personal_submersibles at psubs.org> wrote:
>
> Hi Cliff,
>
> It is a parallel thread, 1 1/8" - 18.
>
> Best,
>
> Alec
>
>
> On Fri, Jul 18, 2014 at 8:04 PM, Cliff Redus via Personal_Submersibles <
> personal_submersibles at psubs.org> wrote:
>
>>  Does anyone have any documentation on the Minn Kota 101 main support
>> female thread spec?  It does not look like a tapered pipe thread and the
>> threads per inch look to great. I put a digital caliper on this at it read
>> 1.064-1.07 inches for the minor diameter.  I measured the threads and it is
>> 18 threads per inch.    I looked in the machine handbook and the closest
>> that comes is a 1-1/8  UNEF (Extra fine thread series).  The major and
>> minor diameters for a 1-1/8" UNEF are 1.1250" and 1.0649"  respectively.
>>
>> Can anyone confirm this?
>>
>> Cliff
>>
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