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<blockquote data-quote="Diogenes" data-source="post: 33972" data-attributes="member: 91"><p>There is worse than that!</p><p></p><p><a href="http://www.thevincent.com/CometM030a.html" target="_blank">http://www.thevincent.com/CometM030a.html</a></p><p></p><p>Below the actual drawing MO30a is an added photo of F47 Engine Mounting Bolt and nuts, together with the following text:</p><p>QUOTE</p><p>" This shoulder nut ET154 is short for early Vincents RC/1306 and before and actually should not be found in use on a Comet as Comet chassis numbers begin after 1306.</p><p>Reference to the Spare Parts List shows that spigot nut ET154 and engine mount bolt F47/3 are used on all frames prior to RC/1306.</p><p>All subsequent frames (to include all Comets) use ET154/1 and F47/4.</p><p>In this picture you can see that the shank on the special nut is longer on the later variant ET154/1.</p><p>Also the threads on F47/4 are longer than the earlier version."</p><p>END QUOTE</p><p></p><p>This is mainly wrong - for the correct info see KTB by EMGS.</p><p>It is important for safety reasons to get this right.</p><p></p><p>It is just wrong to state </p><p>"This shoulder nut ET154 is short for early Vincents RC/1306 and before and actually should not be found in use on a Comet as Comet chassis numbers begin after 1306."</p><p></p><p>The Blue Harpers Spares list does state 'ET154/1 [ the long nut ] Used on engine No.<strong>RC/</strong>1306" but RC prefix numbers are FRAME NUMBERS!</p><p></p><p>P.Richardson 2nd ed 1960 page 219 gives Frame No. 8614 as the introduction of "Modified head-lug and cylinder head bracket FT 3/2", which is the 1951 type 3 lug.</p><p></p><p></p><p></p><p>May I suggest that the web site be amended to be consistent with KTB?</p><p></p><p>I am beginning to regret my original submission.</p><p>It does state "DRAFT" on the web page</p><p><a href="http://www.thevincent.com/comet-pages.html" target="_blank">http://www.thevincent.com/comet-pages.html</a></p><p>but maybe the "R" should be deleted?</p></blockquote><p></p>
[QUOTE="Diogenes, post: 33972, member: 91"] There is worse than that! [url]http://www.thevincent.com/CometM030a.html[/url] Below the actual drawing MO30a is an added photo of F47 Engine Mounting Bolt and nuts, together with the following text: QUOTE " This shoulder nut ET154 is short for early Vincents RC/1306 and before and actually should not be found in use on a Comet as Comet chassis numbers begin after 1306. Reference to the Spare Parts List shows that spigot nut ET154 and engine mount bolt F47/3 are used on all frames prior to RC/1306. All subsequent frames (to include all Comets) use ET154/1 and F47/4. In this picture you can see that the shank on the special nut is longer on the later variant ET154/1. Also the threads on F47/4 are longer than the earlier version." END QUOTE This is mainly wrong - for the correct info see KTB by EMGS. It is important for safety reasons to get this right. It is just wrong to state "This shoulder nut ET154 is short for early Vincents RC/1306 and before and actually should not be found in use on a Comet as Comet chassis numbers begin after 1306." The Blue Harpers Spares list does state 'ET154/1 [ the long nut ] Used on engine No.[B]RC/[/B]1306" but RC prefix numbers are FRAME NUMBERS! P.Richardson 2nd ed 1960 page 219 gives Frame No. 8614 as the introduction of "Modified head-lug and cylinder head bracket FT 3/2", which is the 1951 type 3 lug. May I suggest that the web site be amended to be consistent with KTB? I am beginning to regret my original submission. It does state "DRAFT" on the web page [url]http://www.thevincent.com/comet-pages.html[/url] but maybe the "R" should be deleted? [/QUOTE]
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