[PSUBS-MAILIST] WD - 40

MerlinSub@t-online.de via Personal_Submersibles personal_submersibles at psubs.org
Wed Mar 29 15:22:41 EDT 2017


Air compensation will work for sure. But corrosion can be an issue.
I prefer oil compensation with silicon oil.
Its harmless to the invorement and base for our sun protecion soap..
But Air compensation has the higher engine efficenciy..
 
vbr Carsten
 
 
 
-----Original-Nachricht-----
Betreff: Re: [PSUBS-MAILIST] WD - 40
Datum: 2017-03-29T20:15:49+0200
Von: "emile via Personal_Submersibles" <personal_submersibles at psubs.org>
An: "'Personal Submersibles General Discussion'" 
<personal_submersibles at psubs.org>
 
 
 

Totally agree with you.

 

With clever positioning of the connections and 2nd stage, any (condensated) 
water will be expelled when ascending.

 

BR, Emile

 

Van: Personal_Submersibles [mailto:personal_submersibles-bounces at psubs.org] 
Namens james cottrell via Personal_Submersibles
Verzonden: woensdag 29 maart 2017 15:01
Aan: Personal Submersibles General Discussion
Onderwerp: Re: [PSUBS-MAILIST] WD - 40

 

I have to say, I no longer think that WD40 is the best for compensating 
things underwater. Over time it causes plastics and rubber to harden and 
become brittle.

Silicone oil is better but the other problem with oil compensation in 
general is that the smallest drop/leak makes a very visible oil slick 
around your sub (not good). Most guys are using trolling motors and they're 
not really tight enough to hold thin oil without leaks.

Back in the 90s I was using air compensation- and it actually worked really 
well. As far as I know, Karl Stanley has also been using air compensation 
for a long time without problems.

It's a clean system that's not hard to set up and a small bottle of air 
lasts for many dives.

 

Greg C

 

 

------------------------------------------------------------------------

From: "MerlinSub at t-online.de via Personal_Submersibles
<mailto:MerlinSub at t-online.de%20via%20Personal_Submersibles> " <
personal_submersibles at psubs.org <mailto:personal_submersibles at psubs.org> >
To: Personal Submersibles General Discussion <
personal_submersibles at psubs.org <mailto:personal_submersibles at psubs.org> >
Sent: Tuesday, March 28, 2017 12:55 PM
Subject: Re: [PSUBS-MAILIST] WD - 40

 

On a brushless motor it will maybe work with mineral oil.

On motors with brushes I have bad expierence with that.

Mineral oil is a big problem in a lake if a motor is even a little untight.

 

 

 

-----Original-Nachricht-----

Betreff: Re: [PSUBS-MAILIST] WD - 40

Datum: 2017-03-28T17:15:59+0200

Von: "Brian Cox via Personal_Submersibles" <
personal_submersibles at psubs.org <mailto:personal_submersibles at psubs.org> >

An: "Personal Submersibles General Discussion" <
personal_submersibles at psubs.org <mailto:personal_submersibles at psubs.org> >

 

 

 

Hi Carsten, 

                        I did a small test trying to light the WD40 on 
fire.  It's not as flammable as I thought it would be.  I think they have 
improved it's non-flammability with new formulation. It's still somewhat 
flammable however. 

I will be using a light mineral oil in my motors.

 

Brian

 



--- personal_submersibles at psubs.org
<mailto:personal_submersibles at psubs.org> wrote:

From: "MerlinSub at t-online.de via Personal_Submersibles
<mailto:MerlinSub at t-online.de%20via%20Personal_Submersibles> " <
personal_submersibles at psubs.org <mailto:personal_submersibles at psubs.org> >
To: Personal Submersibles General Discussion <
personal_submersibles at psubs.org <mailto:personal_submersibles at psubs.org> >
Subject: Re: [PSUBS-MAILIST] WD - 40
Date: Tue, 28 Mar 2017 07:22:02 +0200 (MEST)

Heat Vapor is may a problem with WD40.

May ensure that the compensating back is big to handle that..

We change to silicon oil for that reason.

 

vbr Carsten

 

 

 

-----Original-Nachricht-----

Betreff: [PSUBS-MAILIST] WD - 40

Datum: 2017-03-28T04:56:46+0200

Von: "Brian Cox via Personal_Submersibles" <
personal_submersibles at psubs.org <mailto:personal_submersibles at psubs.org> >

An: "PSubs" <personal_submersibles at psubs.org
<mailto:personal_submersibles at psubs.org> >

 

 

 

I just ran one of my motors filled with the WD40.  It seemed to be very 
happy.  I mainly just did it to clean the carbon build up out of the motor. 
 I was surprised how sealed the motor was, it is open at one end where it 
mates to the gear box.  I was able to fill it up without it leaking out 
anywhere.  That could be an issue later when I want the mineral oil to fill 
all the voids.  I might need to actually drill some holes to get some 
circulation . 

 

 

Brian 

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