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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Cam Wear
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<blockquote data-quote="Martyn Goodwin" data-source="post: 92800" data-attributes="member: 2433"><p>Take care that you do not starve the rocker pin/rocker bearing surfaces of oil. On the locking bolts I have put TWO holes top and bottom , all 1 mm diam. Then I have enlarged the oil feed holes in the rocker bearing as well (approx 2mm each) plus I have created a small 'well' to help guide oil down the drillings to the rocker bearing surfaces - see picture. Any oil that does not go through the drillings to the rocker bearings will make its way around the rocker bearing outer then eventually down the pushrod tubes.</p><p></p><p>With the motor running there is a lot of air currents inside the timing chest pushing oil droplets in all directions so a straight drop from any point cannot be assumed.</p><p></p><p>[ATTACH]20531[/ATTACH]</p></blockquote><p></p>
[QUOTE="Martyn Goodwin, post: 92800, member: 2433"] Take care that you do not starve the rocker pin/rocker bearing surfaces of oil. On the locking bolts I have put TWO holes top and bottom , all 1 mm diam. Then I have enlarged the oil feed holes in the rocker bearing as well (approx 2mm each) plus I have created a small 'well' to help guide oil down the drillings to the rocker bearing surfaces - see picture. Any oil that does not go through the drillings to the rocker bearings will make its way around the rocker bearing outer then eventually down the pushrod tubes. With the motor running there is a lot of air currents inside the timing chest pushing oil droplets in all directions so a straight drop from any point cannot be assumed. [ATTACH]20531[/ATTACH] [/QUOTE]
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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Cam Wear
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