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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
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<blockquote data-quote="greg brillus" data-source="post: 57401" data-attributes="member: 597"><p>Kenny, A couple of things to watch out for.....in the picture of the cylinder, it is not quite clear enough, but it looks to me as though the oil feed hole is above the lower most marks left on the bore where the rings stop at bottom of their travel...If this is the case you need to remedy this, as this is a common issue that is basically feeding oil into the rings and not bellow them. This will result in oil usage without doubt. The other thing is to make sure on assembly that the piston ring gaps are set apart....I usually set them up 180 degrees apart from one to the next and diagonally across the bore. That is so the gaps are in line with the hold down through studs. It is not good if the ring gaps are in Line with each other, once again not quite clear enough in your photos......Cheers....Greg.</p></blockquote><p></p>
[QUOTE="greg brillus, post: 57401, member: 597"] Kenny, A couple of things to watch out for.....in the picture of the cylinder, it is not quite clear enough, but it looks to me as though the oil feed hole is above the lower most marks left on the bore where the rings stop at bottom of their travel...If this is the case you need to remedy this, as this is a common issue that is basically feeding oil into the rings and not bellow them. This will result in oil usage without doubt. The other thing is to make sure on assembly that the piston ring gaps are set apart....I usually set them up 180 degrees apart from one to the next and diagonally across the bore. That is so the gaps are in line with the hold down through studs. It is not good if the ring gaps are in Line with each other, once again not quite clear enough in your photos......Cheers....Greg. [/QUOTE]
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