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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Oil Sumping
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<blockquote data-quote="davidd" data-source="post: 87407" data-attributes="member: 1177"><p>Tommy,</p><p></p><p>On the twin, if you look at the oil pump cap and then go straight down, there is a crank case stud that is holding onto the last hole in the prop stand plate. Just to the rear of that stud is a grub screw. If you screw out that grub screw, the oil from the sump chamber will spill out. You should be able to feel it if you cannot see it. The hole is not very large, so I think metal flakes would drain out, but larger debris would stay inside.</p><p></p><p>I feel that the risk of engine damage when compared to the aggravation of draining the sump is too high. If you're riding every day or every few days, you don't need to worry. If you ride once a month, I would drain the sump. </p><p></p><p>David</p></blockquote><p></p>
[QUOTE="davidd, post: 87407, member: 1177"] Tommy, On the twin, if you look at the oil pump cap and then go straight down, there is a crank case stud that is holding onto the last hole in the prop stand plate. Just to the rear of that stud is a grub screw. If you screw out that grub screw, the oil from the sump chamber will spill out. You should be able to feel it if you cannot see it. The hole is not very large, so I think metal flakes would drain out, but larger debris would stay inside. I feel that the risk of engine damage when compared to the aggravation of draining the sump is too high. If you're riding every day or every few days, you don't need to worry. If you ride once a month, I would drain the sump. David [/QUOTE]
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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Oil Sumping
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