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  1. #1
    Join Date
    Mar 2008
    Location
    New Forest
    Posts
    2,659

    Default Cleaning Outdrives..

    Zippy was lifted today and is ashore to a week or so to get some TLC....

    Believe it or not, we usually sell our boats around this time in the ownership life cycle so i am very much a novice when it comes to DIY Work!!

    Whats the generally considered methods for cleaning the drives? they took a real hammering with barnacles last year and no doubt are very weedy, they will have been pressure washed before blocking off but i am not going to be able to start work on cleaning until at least Friday morning..

    What do people recommend for cleaning up drives and props? products / methods, any help appreciated.

    They drives are coming off to be serviced with new bellows but i want to try and get them cleaned up so they are looking great again.

    Same for trim tabs and bow thruster tube and prop...

  2. #2
    Join Date
    Nov 2002
    Location
    Colwell Bay
    Posts
    5,607

    Default Re: Cleaning Outdrives..

    Elbow grease!

  3. #3
    Join Date
    Feb 2015
    Location
    Conwy
    Posts
    3,881

    Default Re: Cleaning Outdrives..

    Quote Originally Posted by burgundyben View Post
    Elbow grease!
    With a tin of compromise

  4. #4
    Join Date
    Apr 2011
    Location
    Boat- Western Med
    Posts
    4,995

    Default Re: Cleaning Outdrives..

    Hydrochloride acid brushed on and agitated removes " shells ".
    Rinse with water , wear PPE inc a breather mask + eye protection.
    Once clean use suitable primer followed by Trilux in grey .

  5. #5
    Join Date
    Feb 2007
    Location
    Poole, Dorset
    Posts
    930

    Default Re: Cleaning Outdrives..

    On previously antifouled drives I just use a scouring pad and water then rinse off with a blunt scraper for crustier areas.
    On non antifouled surfaces the barnacle circles remain visable with this method.

  6. #6
    Join Date
    Feb 2015
    Location
    Conwy
    Posts
    3,881

    Default Re: Cleaning Outdrives..

    Quote Originally Posted by dpb View Post
    On previously antifouled drives I just use a scouring pad and water then rinse off with a blunt scraper for crustier areas.
    On non antifouled surfaces the barnacle circles remain visable with this method.
    And over time these cause an oxidation erosion making your drive resemble a golf ball. This is where the tin of compromise comes in. I sent mine in this season to be professionally done with all the dimples etc filled in and sanded off and repainted. Cost me 1.3k and that my friend after many personal failed attempts at making them look shiny and new is exactly where my compromise ends. Next time its a thick wodge of AF, and not that rubbish Trilux the barnacles adore, in the hopes that if I build it up thick enough it might hide the acne scars.

  7. #7
    Join Date
    Feb 2007
    Location
    Poole, Dorset
    Posts
    930

    Default Re: Cleaning Outdrives..

    Quote Originally Posted by BruceK View Post
    And over time these cause an oxidation erosion making your drive resemble a golf ball.
    Plastic scourer, not steel. And I dont go beyond the antifoul thats there already so don't see how what you describe can happen.

  8. #8
    Join Date
    Feb 2015
    Location
    Conwy
    Posts
    3,881

    Default Re: Cleaning Outdrives..

    Quote Originally Posted by dpb View Post
    Plastic scourer, not steel. And I dont go beyond the antifoul thats there already so don't see how what you describe can happen.
    No, the barnacle circles. They start off erosion dimpling. I have a long passionate war against the little demons. This after half a season. (I beach and do a mid season scrub and anode check)




  9. #9
    Join Date
    May 2001
    Location
    Hampshire
    Posts
    1,380

    Default Re: Cleaning Outdrives..

    I simply scrap off any barnacles then use wet and dry with water and sponge, smooth out any patches. Then prime any metal areas showing then two coats of Seajet 034 (white as grey is more expensive and not generally available) which I found to be much better than trilux, far less barnacles. For props I do the same but apply Seajet 034 black, if really bad then I remove all paint and apply epoxy first.

  10. #10
    Join Date
    Dec 2005
    Location
    Live London
    Posts
    3,625

    Default Re: Cleaning Outdrives..

    Be careful if you use acid on aluminium. It dissolves Ali just as well as sea shells.

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