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Offline Ianrobbo1

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MK1 Swing Arm issue.
« on: 27 July, 2020, 02:52:43 PM »
Hiya everyone.
A quick question regarding the swing arm on a MK1, RUST!! do they all rust, and although surface rust is kind of expected "though hated" does the inside of the swing arm rust at the same rate or faster, I ask as the only "arm's" on the bay of flies have plenty of surface rust, so obviously I can't see inside, my "arm" has slight surface rust and I wondered if it will collapse because of the same thing IE rusting away inside!!  don't answer on a postcard here will do.  :465:
A newbie to the Biffer, owned a Bird for 19 years, and looking forward to long term ownership of my CBF!!

Offline Art

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Re: MK1 Swing Arm issue.
« Reply #1 on: 27 July, 2020, 03:37:36 PM »
Yes they all rust and I'd expect the inside to rust at a far slower rate but I've never taken a sneak peek so couldn't confirm that in any way. My swingarm was as rusty as any where its open to road fling from the rear wheel and possible a little unattended spillage from the rear brake fluid reservoir. As part of a Corona Virus COVID-19 service it was removed, rubbed down, brush painted in Hammerite smooth gloss black, greased all the bearings, re-fitted and its good for another 14 years. Its a substantial piece of steel and I really couldn't imagine it rusting to the extent it became unserviceable. What I do to mine is let off 50 ml or so of WD40 down each arm and in through the drain hole underneath as part of an annual service, it soon finds its way back out so be prepared to mop it up.

I'm sure in my case the bearings benefited more from being re-greased than the swingarm benefited from being re-painted.

Offline Ianrobbo1

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Re: MK1 Swing Arm issue.
« Reply #2 on: 27 July, 2020, 07:30:18 PM »
Cheers ART,  Thats what I hoped for, and agree the greasing will have been more use than chucking WD in it, I use ACF 50 it being a LOT better at everything over WD with possibly cleaning grease off of plastics.  :015:
« Last Edit: 27 July, 2020, 07:40:40 PM by Ianrobbo1 »
A newbie to the Biffer, owned a Bird for 19 years, and looking forward to long term ownership of my CBF!!

 


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