Author [NL] [FR] [ES] [DE] [SE] [IT] How To: Deal with Rear Bevel Corrosion  (Read 6083 times)

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  • Offline threeup   gb

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    Offline threeup

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    How To: Deal with Rear Bevel Corrosion
    on: Feb 15, 2017, 04.36 pm
    Feb 15, 2017, 04.36 pm
    The Rear Bevel assembly is expensive to replace. It is also difficult to remove and/or replace as the process requires one or more dedicated Tools. For the time being I decided to try to halt the corrosion a different way.

    If I had the time to do it I would certainly remove the back wheel, rear disc and pads before doing this job again. As it was I lifted the brake assembly away from the immediate area and took precautions to eliminate dust and detritus from the cleaning down processes getting where they should not!

    The corrosion can be seen here (where the paint has come off completely):

    [smg id=1678]

    and here (where there is bubbling underneath the coating:

    [smg id=1680]

    Removing the loose paint with a wire brush revealed a worse situation:

    [smg id=1681]

    [smg id=1682]

    The whole area was vigorously brushed and cleaned down to remove all of the loose paint and expose the worst

    [smg id=1683]

    Halfords Special Primer was used, after cleaning with a mild detergent, rinsing and then drying thoroughly (Bike Dryer to the rescue here)

    The primer cannot be used if the temperature is too low - read the tin!!
    The Primer was applied over the whole area that needed treatment. Its colour makes it easy to see!

    [smg id=1684]

    [smg id=1685]

    [smg id=1686]

    Once dried the Halfords Satin Black was applied - as can be seen from the photos this will need a second coat, though the Photos look worse that the finished job does to the naked eye

    [smg id=1687]

    [smg id=1679]

    At the moment I do not know how well the Satin Black will blend in, but it looks a lot better than the corrosion - time will tell!

    Withe replacement units costing over 1200.00 each + VAT and requiring a big and skilled job to replace one, hopefully this will stave off that requirement for the time being
    Last Edit: Feb 15, 2017, 05.20 pm by threeup
    Now got Black TTSE
    Used to have Pre-Launch Trophy - lowest recorded Trophy VIN
    Why Threeup? Me, SWMBO and her bear (Fredbear)

  • Offline ShaunDW

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    Offline ShaunDW

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    Re: Ho To: Deal with Rear Bevel Corrosion
    Reply #1 on: Feb 15, 2017, 05.12 pm
    Feb 15, 2017, 05.12 pm
    With that amount of corrosion, I would assume that you ride all year round and in all weathers?
    How old is your bike, and what is the mileage?

    I also ride all year round, with the result that my bike is often encrusted with salt. So far I've not spotted any signs of corrosion, but mine is not quite 2 years old (in 3 weeks) and so far has only done 21K miles.

    It's good (if a little disappointing) to know what to expect...
    Pacific Blue Trophy A1
    Honda Bros 650 (since import from Japan in '95)
    History (best of):
    KE125, CB250T, DT400, GS425, GS650G, XR200, CB900F2, FJ1200, K1200RS

  • Offline threeup   gb

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    Offline threeup

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    Re: How To: Deal with Rear Bevel Corrosion
    Reply #2 on: Feb 15, 2017, 05.20 pm
    Feb 15, 2017, 05.20 pm
    With that amount of corrosion, I would assume that you ride all year round and in all weathers?
    How old is your bike, and what is the mileage?

    All year round - you bet - some of the best riding is on cold winter mornings

    The bike is the oldest Trophy 2013 (registered July 2012 for the Pre-launch) and it has the lowest VIN so definitely in the initial batch

    29,000 miles on it

    I do look after it, but I was not the first owner so it had not seen any ACF50 for the first 12 months. That said some of this corrosion was a definitely a result of poor pre-paint preparation
    Now got Black TTSE
    Used to have Pre-Launch Trophy - lowest recorded Trophy VIN
    Why Threeup? Me, SWMBO and her bear (Fredbear)

  • Offline Coconut   gb

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    Offline Coconut

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    Re: How To: Deal with Rear Bevel Corrosion
    Reply #3 on: Feb 15, 2017, 06.08 pm
    Feb 15, 2017, 06.08 pm
    Many of the early Trophy's that went back to the Factory for the Cylinder Head "upgrade"
    had those Final Drive units changed at the same time - because of visible corrosion !

    Last Edit: Nov 15, 2020, 07.12 pm by Coconut

  • Offline threeup   gb

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    Offline threeup

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    Re: How To: Deal with Rear Bevel Corrosion
    Reply #4 on: Feb 15, 2017, 06.19 pm
    Feb 15, 2017, 06.19 pm
    Well mine went back to the factory for the head work, but the Rear Bevel Drive was not changed!!  :151: :007:

    I would have tackled Triumph over this but my machine is certainly one of the initial batch (lowest VIN) and when I tried to claim for the radiator paint flaking I was told that it was out of warranty - which it is but it is also true that this corrosion is largely the result of poor preparation prior to coating.
    If this paint work holds up - even for a short while - I will be reasonably happy - the bike has taken up little of my time on maintenance compared to some and gives a lot of pleasure riding it

    The biggest issue really is that this is not a part that is cheap (the replacement units are complex non dealer maintainable units) or easy to remove as the process requires specialist tools. Triumph-ant have so far broken 1 Trophy and the Rear Bevel went for 500 to a riders whose unit had broken.
    Now got Black TTSE
    Used to have Pre-Launch Trophy - lowest recorded Trophy VIN
    Why Threeup? Me, SWMBO and her bear (Fredbear)

  • Offline Gar   ca

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    Offline Gar

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    Re: How To: Deal with Rear Bevel Corrosion
    Reply #5 on: Feb 15, 2017, 10.10 pm
    Feb 15, 2017, 10.10 pm
    I also have a low VIN from 2013 but there is not a speck of corrosion or bubbling anywhere on the rear bevel....very odd  :187:
    Yamaha 550 Vision, Ninja ZX1000R

    Garanthor

  • Offline ShaunDW

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    Offline ShaunDW

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    Re: How To: Deal with Rear Bevel Corrosion
    Reply #6 on: Feb 19, 2017, 01.41 pm
    Feb 19, 2017, 01.41 pm
    I managed to have a good look at the housing on my bike at the weekend, and was disappointed to see corrosion bubbles there also. Some of the paint flaked off quite easily. I also noticed several corrosion bubbles on the rear wheel.   :003:

    My bike is nearly 2 years old, with 21K miles which have been put on in all weathers (coldest journey being at -4 deg C), which means it has been exposed to all the salt that has been spread at times.

    Spoke to the dealer who has some photos and will follow up a warranty claim for me.
    Pacific Blue Trophy A1
    Honda Bros 650 (since import from Japan in '95)
    History (best of):
    KE125, CB250T, DT400, GS425, GS650G, XR200, CB900F2, FJ1200, K1200RS

  • Offline rpeters549   us

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    Offline rpeters549

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    Re: How To: Deal with Rear Bevel Corrosion
    Reply #7 on: Feb 20, 2017, 12.59 am
    Feb 20, 2017, 12.59 am
    I am so happy we do not use road salt in this part of the country!
    Year round rider here!

     



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