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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
What oil to put in the gearbox?
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<blockquote data-quote="A_HRD" data-source="post: 1080" data-attributes="member: 49"><p><strong>Gearbox EP Oils</strong></p><p></p><p>Stuart,</p><p></p><p>Like your Dad, Petermb998 was right - many years ago! EP (and other) oils did attack bronze over a period of time. The makers (Castrol) soon got wind of it and made the necessary chemical adjustments with additives. </p><p></p><p>This subject has been on the JTAN forum a few times in the last couple of years and all the long-distance Vincent riders and restorers were using EP80/90 in twins and highly recommending it. For what its worth, I have changed the bronze bushes in the hollow shaft twice in 200,000 miles. Not because it was essential, just because the cases were apart for other reasons; I also change the bearings on an opportunity-basis like this too. </p><p></p><p>But what is absolutely certain is that if you start an oil thread it will run on and on (without lubrication!) and there will be as many opinions as there are oils. So in the final analysis, you pays your money and takes your choice....</p><p></p><p>Cheers, </p><p></p><p>Peter B</p><p>Bristol, UK</p></blockquote><p></p>
[QUOTE="A_HRD, post: 1080, member: 49"] [b]Gearbox EP Oils[/b] Stuart, Like your Dad, Petermb998 was right - many years ago! EP (and other) oils did attack bronze over a period of time. The makers (Castrol) soon got wind of it and made the necessary chemical adjustments with additives. This subject has been on the JTAN forum a few times in the last couple of years and all the long-distance Vincent riders and restorers were using EP80/90 in twins and highly recommending it. For what its worth, I have changed the bronze bushes in the hollow shaft twice in 200,000 miles. Not because it was essential, just because the cases were apart for other reasons; I also change the bearings on an opportunity-basis like this too. But what is absolutely certain is that if you start an oil thread it will run on and on (without lubrication!) and there will be as many opinions as there are oils. So in the final analysis, you pays your money and takes your choice.... Cheers, Peter B Bristol, UK [/QUOTE]
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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
What oil to put in the gearbox?
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