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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: 1072" data-attributes="member: 49"><p><strong>Gearbox Oil - Twin and Comet</strong></p><p></p><p>Stuart,</p><p></p><p>Your Dad was right - 40 years ago; EP90 was like treacle <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite9" alt=":eek:" title="Eek! :eek:" loading="lazy" data-shortname=":eek:" />. But these days it is much thinner, not unlike your average engine oil. However, the modern Extreme Pressure additives (that won't shear) make it the ideal choice for Vincent Twin gearboxes. </p><p></p><p>I've been using it for years in my Rapide and have never had occasion to re-new any gears in the last 200,000 miles. <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" /> And you can buy the stuff anywhere in UK - even Halfords. </p><p></p><p>Advice: only fill the box to the bottom tip of the dipstick; no more than one eighth of an inch showing. Otherwise the stuff will find various ways out and make a mess of the back end of your bike. </p><p></p><p>For Cometeers, use Castrol Spheerol; its a liquid grease. In other words, runny but thick when warm, and like grease when cold. It saves having to mix oil & grease to get adequate lubrication. You can get it from various places in UK (not sure about abroad) or better still, support your favourite Vincent stockist - they usually have it. </p><p></p><p>Regards,</p><p>Peter B</p><p>Bristol, UK</p></blockquote><p></p>
[QUOTE="A_HRD, post: 1072, member: 49"] [b]Gearbox Oil - Twin and Comet[/b] Stuart, Your Dad was right - 40 years ago; EP90 was like treacle :eek:. But these days it is much thinner, not unlike your average engine oil. However, the modern Extreme Pressure additives (that won't shear) make it the ideal choice for Vincent Twin gearboxes. I've been using it for years in my Rapide and have never had occasion to re-new any gears in the last 200,000 miles. :) And you can buy the stuff anywhere in UK - even Halfords. Advice: only fill the box to the bottom tip of the dipstick; no more than one eighth of an inch showing. Otherwise the stuff will find various ways out and make a mess of the back end of your bike. For Cometeers, use Castrol Spheerol; its a liquid grease. In other words, runny but thick when warm, and like grease when cold. It saves having to mix oil & grease to get adequate lubrication. You can get it from various places in UK (not sure about abroad) or better still, support your favourite Vincent stockist - they usually have it. Regards, 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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