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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Gearbox pinion hardness
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<blockquote data-quote="Vincent Brake" data-source="post: 109603" data-attributes="member: 398"><p>Ja Sebastian, ich kanns lesen ja <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite8" alt=":D" title="Big Grin :D" loading="lazy" data-shortname=":D" /> kein problem.</p><p></p><p>Ich habe ein Getriebe gekauft wass in einem brand war.</p><p>sorry, uk here:</p><p>I purchased the inners of a gearbox, which was in a fire, the alu did warp but not molten, i thought i get away with it, but all has been over 300 degrees,</p><p>so it softned.</p><p>now the re-casing will be not nessecary, as the carbon is still there.</p><p></p><p>after your advice, i think to reharden it by heat up to 780-800 degr, cool in oil and temper at 150-180 or so to reach 58-60 Hrc. and not go all monty to 62</p><p>maybe i should do refine the grain, (from 880 degr/cool in air) dont know yet, as it is old steel.</p><p></p><p></p><p>Thanx again Guys</p></blockquote><p></p>
[QUOTE="Vincent Brake, post: 109603, member: 398"] Ja Sebastian, ich kanns lesen ja :D kein problem. Ich habe ein Getriebe gekauft wass in einem brand war. sorry, uk here: I purchased the inners of a gearbox, which was in a fire, the alu did warp but not molten, i thought i get away with it, but all has been over 300 degrees, so it softned. now the re-casing will be not nessecary, as the carbon is still there. after your advice, i think to reharden it by heat up to 780-800 degr, cool in oil and temper at 150-180 or so to reach 58-60 Hrc. and not go all monty to 62 maybe i should do refine the grain, (from 880 degr/cool in air) dont know yet, as it is old steel. Thanx again Guys [/QUOTE]
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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Gearbox pinion hardness
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