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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Cam Wear
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<blockquote data-quote="BigEd" data-source="post: 92807" data-attributes="member: 161"><p>My brother-in-law worked for a very short time in the stores at Ross Motors in Hinckley, Leicestershire. I think this was his probably his first job on leaving school so this would be around 1959-1960. He remembers people coming in and asking for "the little bit of wire that stops the engine smoking and using too much oil." From this, my guess is that "jiggle wires" had more to do with restricting the oil flow to limit oil going down worn valve guides. A bonus would have been that any "jiggling about" the wire did helped to stop the hole blocking up. (He also remembered they moaned about the few pence that the tiny bit of wire cost.<img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite2" alt=";)" title="Wink ;)" loading="lazy" data-shortname=";)" />) </p><p>Swings and roundabouts; a restriction meant less oil to the guides but also to the rockers and cams where it might have helped in an area of a high sliding load. <u>If </u>the hole was enlarged, perhaps to try to help the cams, the "jiggle wire" would have been an easy and cheap way to reduce the flow again without having to replace the rocker bolt.</p></blockquote><p></p>
[QUOTE="BigEd, post: 92807, member: 161"] My brother-in-law worked for a very short time in the stores at Ross Motors in Hinckley, Leicestershire. I think this was his probably his first job on leaving school so this would be around 1959-1960. He remembers people coming in and asking for "the little bit of wire that stops the engine smoking and using too much oil." From this, my guess is that "jiggle wires" had more to do with restricting the oil flow to limit oil going down worn valve guides. A bonus would have been that any "jiggling about" the wire did helped to stop the hole blocking up. (He also remembered they moaned about the few pence that the tiny bit of wire cost.;)) Swings and roundabouts; a restriction meant less oil to the guides but also to the rockers and cams where it might have helped in an area of a high sliding load. [U]If [/U]the hole was enlarged, perhaps to try to help the cams, the "jiggle wire" would have been an easy and cheap way to reduce the flow again without having to replace the rocker bolt. [/QUOTE]
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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Cam Wear
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