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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Large Idler Boss/Shaft Assembly
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<blockquote data-quote="davidd" data-source="post: 166446" data-attributes="member: 1177"><p>Maughan makes a two-piece steel item that has never had a problem, to my knowledge. In the Comet engine, the large Idler spindle, which is one of the two pieces. is also used without the mounting base as a small idler spindle sitting to the right of the large idler spindle (running the ATD). So, the same spindle is used for the large and small idlers in the Comet, one with the base, and one without the base as the spindle is mounted directly in the case.</p><p></p><p>[ATTACH=full]54971[/ATTACH]</p><p></p><p>I suspect that this design caused the after-market parts suppliers to be very motivated to make the twin two-piece item work properly because it simplified the manufacturing process for the Comet small idler.</p><p></p><p>Years ago I began saving the old Series D large idler mounts as they were true one-piece items, but the Maughn-supplied items never failed, so I stopped worrying.</p><p></p><p>The two-piece items that had an aluminum base always separated, which probably prompted the Factory to change to the Series D one-piece style mount.</p><p></p><p>David</p></blockquote><p></p>
[QUOTE="davidd, post: 166446, member: 1177"] Maughan makes a two-piece steel item that has never had a problem, to my knowledge. In the Comet engine, the large Idler spindle, which is one of the two pieces. is also used without the mounting base as a small idler spindle sitting to the right of the large idler spindle (running the ATD). So, the same spindle is used for the large and small idlers in the Comet, one with the base, and one without the base as the spindle is mounted directly in the case. [ATTACH type="full"]54971[/ATTACH] I suspect that this design caused the after-market parts suppliers to be very motivated to make the twin two-piece item work properly because it simplified the manufacturing process for the Comet small idler. Years ago I began saving the old Series D large idler mounts as they were true one-piece items, but the Maughn-supplied items never failed, so I stopped worrying. The two-piece items that had an aluminum base always separated, which probably prompted the Factory to change to the Series D one-piece style mount. David [/QUOTE]
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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Large Idler Boss/Shaft Assembly
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