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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Comet Mongrel
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<blockquote data-quote="davidd" data-source="post: 88530" data-attributes="member: 1177"><p>The length of the short spindle above was 2.52", so that was the length I shortened the new one to.</p><p></p><p>The photo was taken when I built the racer, so it does not have a generator. The generator hole is occupied by a breather, the adapter for the hose being what you see from the inside. I am not sure my breather would help you out, but it is a Ducati reed valve breather, which can be gotten off Ebay. You have to make an adapter for the bottom to run it into a hose.</p><p></p><p>[ATTACH=full]17937[/ATTACH] </p><p></p><p>On the Flash, which I raced also, I used the stock timed breather with the mods mentioned by Irving. Both breathers worked perfectly.</p><p></p><p>I like the Allen heads as they are much easier to drill. I insert the Allen key into the head when I clamp them in the drill press to make sure I am drilling down through two flats. If you drill through the corners it is hard to get the chip out and the Allen key doesn't fit as nicely. I used Allens on the large idler boss also.</p><p></p><p>When I installed the spindles I screw them into the end of a slide hammer. On this engine I cut some scrap EMT or conduit to the desired length and installed a large washer before screwing the spindle in. As I remember, it worked fine for the cam spindle, but there are some obstructions in the case wall that prevent it from being done everywhere. Some other scrap that is cut to length can be used as a gauge. I did not want to be measuring with a hot case, just tap and check with the scrap piece, or tape it to the spindle under the washer.</p><p></p><p>I have not found Loctite on too many parts, but welding a bead on the race should destroy the bond.</p><p></p><p>The slide hammer/puller. The top adapter I made for the cam spindles and the lower for the oil pump sleeve:</p><p></p><p>[ATTACH=full]17938[/ATTACH] </p><p></p><p>David</p></blockquote><p></p>
[QUOTE="davidd, post: 88530, member: 1177"] The length of the short spindle above was 2.52", so that was the length I shortened the new one to. The photo was taken when I built the racer, so it does not have a generator. The generator hole is occupied by a breather, the adapter for the hose being what you see from the inside. I am not sure my breather would help you out, but it is a Ducati reed valve breather, which can be gotten off Ebay. You have to make an adapter for the bottom to run it into a hose. [ATTACH=full]17937[/ATTACH] On the Flash, which I raced also, I used the stock timed breather with the mods mentioned by Irving. Both breathers worked perfectly. I like the Allen heads as they are much easier to drill. I insert the Allen key into the head when I clamp them in the drill press to make sure I am drilling down through two flats. If you drill through the corners it is hard to get the chip out and the Allen key doesn't fit as nicely. I used Allens on the large idler boss also. When I installed the spindles I screw them into the end of a slide hammer. On this engine I cut some scrap EMT or conduit to the desired length and installed a large washer before screwing the spindle in. As I remember, it worked fine for the cam spindle, but there are some obstructions in the case wall that prevent it from being done everywhere. Some other scrap that is cut to length can be used as a gauge. I did not want to be measuring with a hot case, just tap and check with the scrap piece, or tape it to the spindle under the washer. I have not found Loctite on too many parts, but welding a bead on the race should destroy the bond. The slide hammer/puller. The top adapter I made for the cam spindles and the lower for the oil pump sleeve: [ATTACH=full]17938[/ATTACH] David [/QUOTE]
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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Comet Mongrel
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