[PSUBS-MAILIST] Oil Comp Lessons - so far

[T Novak via Personal_Submersibles]

Alan, 

Do you recall the type of oil Nuytco used in the tubing?  Was it baby oil, or, as you suggest, silicon oil? Are either an environmental issue if leaked?

Tim

 

From: Personal_Submersibles [mailto:personal_submersibles-bounces at psubs.org] On Behalf Of Alan via Personal_Submersibles
Sent: Tuesday, July 2, 2019 5:31 PM
To: Personal Submersibles General Discussion <personal_submersibles at psubs.org>
Subject: Re: [PSUBS-MAILIST] Oil Comp Lessons - so far

 

Jon,

I have been using silicone oil to compensate my thrusters because everything

else I tried was detrimental to plastic & rubber.

The marvel mystery oil is probably a very low viscosity & that would contribute

to the wicking. 

Other oil filled lights I have seen ( including Nuytco's ) have had clear plastic 

tubing around the wires that compresses under pressure, equalising the housing.

I vaguely remember the Nuytco technician telling me they clamp a clip on the 

tubing to initiate it's collapse under pressure.

Alan

 


On 3/07/2019, at 9:43 AM, Jon Wallace via Personal_Submersibles <personal_submersibles at psubs.org <mailto:personal_submersibles at psubs.org> > wrote:

Decided to oil compensate my RoadShock LED from Harbor Freight today, with a few surprises that ultimately caused me to abandon it for now.

 

First, umm...well, did ya all know that Marvel Mystery Oil has a ruby red color to it?  :)  :)  I have to admit, I am well aware of the product but have never used it.  Since it was highly recommended for oil compensation I purchased some and just assumed it was a clear liquid like mineral oil packaged in a red transparent bottle.  Nope.  Imagine my surprise when I poured it into the LED fixture and discovered the gorgeous ruby red color of the oil.  Mmmmm....pretty.  Anyway, I went ahead with the compensation just to see how everything would react together.  It went together well and if you saw my video on this LED fixture, the seal worked perfectly as I expected it would.

 

Second, kudos to Alan, he was spot on regarding the wicking of oil through the wiring.  And it didn't take but minutes in this case.  I did not take the unit apart to the point of seeing how the wire enters the housing and I'm sure this can be modified, however I noticed within minutes there was oil escaping through the power connector pins.  See attached photos.  That shiny side inside the power connector is not nice new shiny plastic, it's Marvel Mystery Oil seeping through (I suspect) the outer wire insulation.

 

I think my experimentation is done and I'm ready to endorse the Pronk LED modification to happy lighting under the sea.  You know, some of us have to learn the hard way.

 

 

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