[PSUBS-MAILIST] MK101 oil compensation tap

[David Colombo via Personal_Submersibles]

Hi Jon,
I am using a tapped shaft tube that is very similar to Cliffs assembly on
my MK101, but also incorporates the external tube assembly like Alex's  had
on the Snoopy. I do like the idea of the set screw as secondary fill port.

Best Regards,
David Colombo

804 College Ave
Santa Rosa, CA. 95404
(707) 536-1424
www.SeaQuestor.com


On Wed, May 20, 2015 at 10:02 AM, Cliff Redus via Personal_Submersibles <
personal_submersibles at psubs.org> wrote:

> I like the idea of the small SS set screw on the cap apex  for filling and
> venting.  Must be small enough not to interfere with the front of the motor
> shaft.
>
> Cliff
>
>
>
>
> Cliff Redus
> Redus Engineering
> USA mobile:  830-931-1280
> cliffordredus at sbcglobal.com
>
>   ------------------------------
>  *From:* Alec Smyth via Personal_Submersibles <
> personal_submersibles at psubs.org>
> *To:* Personal Submersibles General Discussion <
> personal_submersibles at psubs.org>
> *Sent:* Wednesday, May 20, 2015 11:32 AM
> *Subject:* Re: [PSUBS-MAILIST] MK101 oil compensation tap
>
> Actually on the new boat I've drilled and tapped the apex cap. It came out
> nicely, I plug it with a little SS allen screw that has an NPT thread on
> it, so the result is completely flush. Note this is just for filling. I'm
> using a little plastic bellows as a compensating volume, and that is tapped
> into a custom attachment for the motor, not into the motor itself. But it
> could go just where Cliff indicates, or even on the shaft itself.
>
> Best,
>
> Alec
>
> On Wed, May 20, 2015 at 12:08 PM, Cliff Redus via Personal_Submersibles <
> personal_submersibles at psubs.org> wrote:
>
>
>
> Jon, when you take the MK 101 apart you will see why no one has drilled
> the apex cap.  The cap is an aluminum casting that has a support boss right
> at the apex that holds the roller bearing and bushing for the motor axle.
> As I elected not to drill the housing I can't comment on preferred
> location. The body of the housing has the permanent magnets but there is
> room between the magnets for a port.  You would have to position the port
> so it does not interfere with the long bolts that hold all the parts
> together.  The assembly comes apart very easily.  Just keep track of were
> everything goes.
>
> Regards
>
> Cliff
>
>
>
>
>
> Cliff Redus
> Redus Engineering
> USA mobile:  830-931-1280
> cliffordredus at sbcglobal.com
>
>   ------------------------------
>  *From:* Jon Wallace via Personal_Submersibles <
> personal_submersibles at psubs.org>
> *To:* Personal Submersibles General Discussion <
> personal_submersibles at psubs.org>
> *Sent:* Wednesday, May 20, 2015 10:52 AM
> *Subject:* [PSUBS-MAILIST] MK101 oil compensation tap
>
>
> At first glance the MK-101 shell looks pretty thin.  I know they've been
> drilled and tapped to accomplish oil compensation but before I start I
> just want to know of any tips/tricks I should be aware of. Also, any
> reason nobody has drilled and tapped at the apex of the head on the end
> opposite the propeller?  Most every one has drilled in the cylinder body.
>
> Jon
>
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