The Association of Model Submariners.

Would you like to react to this message? Create an account in a few clicks or log in to continue.

* THE FORUM FOR ALL THOSE INTERESTED IN BUILDING AND OPERATING MODEL SUBMARINES *



Join the AMS - Registered Forum users can become members of the AMS and it's free ...... To join send an email with your name , address and phone number to amstreasure@googlemail.com


For further details of any events shown here also see the "Shows and Events" section on the forum

*STOP PRESS* Coronavirus. A lot of Clubs have already cancelled all activities. Check carefully before you plan any travel

.

CANCELLED because of coronavirus. Papplewick Pumping Station, Nottingham, Sunday 12th & Monday 13th April
CANCELLED because of coronavirus. Bournville Sub Day, Sunday 10th May 2020

. ,

Submarine, Boating & Sailing Weekend, Norwich MBC, Weekend of 25,26th July

,./
.
Model Boat Convention, Haydock Park (Cancelled this year)

.

Bournville Sub Day, Sunday 13th September

,,,,

Club Submarine Regatta, Furness MBC, Barrow in Furness, Sunday 20th Sept 2020

Who is online?

In total there are 2 users online :: 0 Registered, 0 Hidden and 2 Guests

None


Most users ever online was 180 on Tue Nov 05, 2019 6:03 am

Latest topics

» PIC and Arduino microprocessors
How to test for leaks EmptyYesterday at 10:59 pm by timgarrod

» Nautilus Drydocks SUBFEST 2020 - Cohutta, GA - Sept 18th to 20th, 2020
How to test for leaks EmptyYesterday at 9:38 am by RCSubGuy

» Simple telemetry system for openLRS (on 458Mhz)
How to test for leaks EmptySat Jul 04, 2020 12:03 pm by david f

» Patrick Henry Wanted
How to test for leaks EmptyThu Jun 11, 2020 10:53 am by gantu

» What motor to use
How to test for leaks EmptyWed Jun 10, 2020 1:50 am by Radioman

» Seehund Drawing
How to test for leaks EmptyTue Jun 02, 2020 8:05 am by david f

» Yellow Submarine - Beatles
How to test for leaks EmptyWed May 27, 2020 11:03 am by david f

» Italian CB class from WW2
How to test for leaks EmptyWed May 27, 2020 10:55 am by david f

» New member from Liverpool, England - Krick type v11b
How to test for leaks EmptyFri May 15, 2020 9:35 am by david f

Statistics

Our users have posted a total of 11152 messages in 1826 subjects

We have 859 registered users

The newest registered user is Volker55

    How to test for leaks

    david f
    david f
    AMS Treasurer

    Posts : 2104
    Join date : 2010-11-10
    Age : 69
    Location : Cumbria

    How to test for leaks Empty How to test for leaks

    Post  david f on Tue Aug 12, 2014 9:24 am

    I've copied this over from our Facebook site. It is a common problem and it seemed best to copy it over here rather than have it just "disappear" over there.

    Hi guys I've got my hands on an eden trafalgar and it all seems to be functioning well after having to change some servos and receiver and a few other bits however I'm finding that one of the sections of the pressure hull seems to be leaking not 100% sure where leak is. I also read that I should be able to put a small amount of pressure into the hull through air valve which mine doesn't have. Is it important to get pressure in? I'm guessing it's to try and help maintain the seal? Does anyone know if I can buy replacement seals for the pressure hull or is this a make myself job?

    LikeLike ·  · Share

    Seen by 34

    David Forrest I find that putting a low air pressure on the sub from an inflated balloon is an invaluable leak test. Connect the balloon and dunk in pond or bath (home test tank.) bubble stream indicates leak. Even without the dunk an inflated balloon after 20 minutes (say) shows sub seals are OK. If you don't have a connection built in to your model, drill and tap or just glue a "nipple" somewhere on the sub - only needs a small hole. (I can't see that positive air pressure is important other than for leak testing - 1 bar internal pressure would only protect against less than 10m depth.)

    August 10 at 2:19pm · Like · 1
    ..

    Deep Diver When I did not have a test tank I use some soapy water on the joints

    August 10 at 2:49pm · Edited · Like · 1
    ..

    Steve Juden Soapy water around the seals, joints and any connections where wires, cables or push-rods exit the hull should show a leak, (a gas fitters test)

    August 10 at 3:51pm · Like · 1
    ..

    Paul Cook Im sure if you have a leak around a seal and its down to the seal, Chris Cloke at Sheerline will help you out for a couple of £'s maybe.

    Yesterday at 8:04am · Like
    ..


    James Kislingbury Thanks guys, I've done a mixture and ended up using a bit of vaseline and the seal is absolutely great. I will give Chris a call and try and get some replacement seals for the long term. Thanks for advice.

    15 hrs · Like

      Current date/time is Fri Jul 10, 2020 1:37 am