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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
RFM wear through the FT66 bore
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<blockquote data-quote="Martyn Goodwin" data-source="post: 117355" data-attributes="member: 2433"><p>The cross over shaft is 'meant' to be a slide fit. I applied liberal amounts of WD40 and then used a suitable sized drift and a 4 lb. hammer to tap it free. To protect the thread fit a nut to the end you tap on - once you break the corrosion seal you can remove the nut - then the shaft should be able to be drifted out with just a little encouragement . Remember Tap - dont bash.</p><p></p><p>With my rebuild I ended up NOT using Nilos seals but rather the standard F42 pivot bearing dust seals as I realised that there is simply insufficient movement at the rfm pivot for the Nilos to work properly. The seal for a Nilos Ring is obtained when the leading edge of the seal, rotating under slight pressure, laps the surface of the inner or outer bearing ring. This lapping process creates the sealing surface which keeps grease in and contaminants out of the bearing. I don't think there is sufficient movement to perform the 'lapping'</p><p></p><p>Reminder - the factory drawings for both the inner and outer dust/grease seals F42 and F42/1 bears the cryptic notation “To be dressed on assembly”, in other words, the OD is intended to be linished or filed down till they are a snug but easy fit.</p><p></p><p></p><p>M</p></blockquote><p></p>
[QUOTE="Martyn Goodwin, post: 117355, member: 2433"] The cross over shaft is 'meant' to be a slide fit. I applied liberal amounts of WD40 and then used a suitable sized drift and a 4 lb. hammer to tap it free. To protect the thread fit a nut to the end you tap on - once you break the corrosion seal you can remove the nut - then the shaft should be able to be drifted out with just a little encouragement . Remember Tap - dont bash. With my rebuild I ended up NOT using Nilos seals but rather the standard F42 pivot bearing dust seals as I realised that there is simply insufficient movement at the rfm pivot for the Nilos to work properly. The seal for a Nilos Ring is obtained when the leading edge of the seal, rotating under slight pressure, laps the surface of the inner or outer bearing ring. This lapping process creates the sealing surface which keeps grease in and contaminants out of the bearing. I don't think there is sufficient movement to perform the 'lapping' Reminder - the factory drawings for both the inner and outer dust/grease seals F42 and F42/1 bears the cryptic notation “To be dressed on assembly”, in other words, the OD is intended to be linished or filed down till they are a snug but easy fit. M [/QUOTE]
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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
RFM wear through the FT66 bore
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