[PSUBS-MAILIST] MK101 oil compensation tap

[Rick Patton via Personal_Submersibles]

Thanks Cliff,
I was very impressed on how well you documented the process as it sure
helps us all.
Did you machine the SS part that screws into the lower end of the 101
yourself or did you have a machine shop do it?  If you outsourced it, do
you remember how pricey it was? I like the the concept but don't have the
capability of doing it myself unfortunately.
Rick

On Thu, May 21, 2015 at 3:26 AM, Cliff Redus via Personal_Submersibles <
personal_submersibles at psubs.org> wrote:

> Rick, I updated the MK101 thruster project at the Psub.org web site to
> show the assembled thrusters installed on the boat
> http://www.psubs.org/projects/1237684922/mk-101thruster/ . The next time
> I pull the thrusters off, I will add a picture of the fully assembled
> thruster alone.  I have not added oil yet.  This is a dry fit only.  I am
> leaning towards doing what Alec did with his idea to add the SS set screw
> to the apex of the caps for fillings and to remove air.  This is a great
> idea.
>
> Cliff
>
>
>
>   ------------------------------
>  *From:* Rick Patton via Personal_Submersibles <
> personal_submersibles at psubs.org>
> *To:* Personal Submersibles General Discussion <
> personal_submersibles at psubs.org>
> *Sent:* Wednesday, May 20, 2015 9:56 PM
>
> *Subject:* Re: [PSUBS-MAILIST] MK101 oil compensation tap
>
> Any pictures Cliff?
> Rick
>
> On Wed, May 20, 2015 at 1:07 PM, Cliff Redus via Personal_Submersibles <
> personal_submersibles at psubs.org> wrote:
>
>
>
>  Small Tygon flexible tube filled with oil.  No holes in housing.  On the
> SS part that screws into the side of the housing, I have a 1/4" tubing with
> Swagelok compression fitting.  I will connect to this port.
>
> Cliff
>
>
>
>
>
> Cliff Redus
> Redus Engineering
> USA mobile:  830-931-1280
> cliffordredus at sbcglobal.com
>
>   ------------------------------
>  *From:* Alan James via Personal_Submersibles <
> personal_submersibles at psubs.org>
> *To:* Personal Submersibles General Discussion <
> personal_submersibles at psubs.org>
> *Sent:* Wednesday, May 20, 2015 4:17 PM
> *Subject:* Re: [PSUBS-MAILIST] MK101 oil compensation tap
>
> Cliff,
> how are you compensating for oil expansion due to heat with the KISS
> method.
> Are you just drilling holes in the housing & using tube?
> Alan
>
>
>
> ------------------------------
>  *From:* Clifford Redus via Personal_Submersibles <
> personal_submersibles at psubs.org>
> *To:* Personal Submersibles General Discussion <
> personal_submersibles at psubs.org>
> *Sent:* Thursday, May 21, 2015 8:43 AM
> *Subject:* Re: [PSUBS-MAILIST] MK101 oil compensation tap
>
> Actually in the spirit of KISS, I am going to start out using oil pressure
> compensation.  If I run into any issues, I will look at using the air or
> this hybrid of oil and air with a regulator.
>
>
> Cliff Redus
>
>
>
> On May 20, 2015, at 2:30 PM, Alan James via Personal_Submersibles <
> personal_submersibles at psubs.org> wrote:
>
> Jon,
> the alternative is to follow Hugh's idea that Cliff is using & I am going
> to test out,
> & put a regulator in the system that is set it to around 4psi internal
> overpressure.
> This means you can fill with oil & not worry about getting every
> last drop going in, or drilling the housing. You will also be able to run
> it air compensated.
> There is the safety feature that if you leak oil there is plenty of air to
> replace it.
> Cliff already has the parts sorted, just put your order in:)
> Alan
>
>   ------------------------------
>  *From:* Jon Wallace via Personal_Submersibles <
> personal_submersibles at psubs.org>
> *To:* Personal Submersibles General Discussion <
> personal_submersibles at psubs.org>
> *Sent:* Thursday, May 21, 2015 5:47 AM
> *Subject:* Re: [PSUBS-MAILIST] MK101 oil compensation tap
>
>
> How important is it to get every last air bubble out?  Surely a fraction
> of the total volume is not going to result in catastrophic failure of
> the motor housing, is it?
>
>
>
>
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