bluerat Posted June 5, 2010 Posted June 5, 2010 G'day, I was wondering if anyone had a std L28 crank lying around could you pop it on the bathroom scales and get me a weight, Cheers Hodgo Quote
NZeder Posted June 5, 2010 Posted June 5, 2010 I have weighted them before so this is what I know L28 Crank = 20KG LD28 Crank = 22KG Modifed L28 in my old L30 = 19KG Quote
bluerat Posted June 6, 2010 Author Posted June 6, 2010 A mate of mine down here just weighed his LD crank at 24.7 kg..... Quote
zrevival Posted June 6, 2010 Posted June 6, 2010 Just dropped off an LD28 crank in Aussie. Took it as baggage - fully packaged was 22.8 kg. Airport scales don't lie Quote
bluerat Posted June 10, 2010 Author Posted June 10, 2010 Thank's guy's, my mates has a some of 'lagging' around the exposed bit's so that might be the difference? I'm getting a std L28 crank off Scando this weekend so i'll weigh that as well. Very interesting.... Quote
Aaron Neubauer Posted June 11, 2010 Posted June 11, 2010 My LD28 was 22kg, now its a bee's dick over 19kg. Quote
dazzed Posted June 11, 2010 Posted June 11, 2010 My LD28 was 22kg, now its a bee's dick over 19kg. a busy weekend in the shed with a angle grinder or something a bit more sophisticated?? Quote
bluerat Posted June 11, 2010 Author Posted June 11, 2010 Knife-edged/Profiled, or something else? Very interesting.... Quote
dat2kman Posted June 12, 2010 Posted June 12, 2010 took approx 3kgs off then add the kgs that came off slugs/rods/flywheel/balancer total reciprocate/rotate weight reduction approx 14kgs. Quote
Aaron Neubauer Posted June 13, 2010 Posted June 13, 2010 I have no idea how much the machinist took off my reciprocating mass but it won't be as much as Jason's, shit, I'm still using a steel flywheel! Knife-edged, balanced and nitrided (talk about an increase to surface hardness!!)... Quote
bluerat Posted June 14, 2010 Author Posted June 14, 2010 Man, you could shave with that one of yours Jason! 14kg! she must spin up like a YZF450! baaazzzing. Nitriding is on my list as well Nueby, some people say it makes the crank brittle, but I think it's worth the risk. If your not already, I'd be looking at a lighter flywheel as well, there are other benifit's other than spinning the engine up quicker. Quote
Scando Posted June 16, 2010 Posted June 16, 2010 Man, you could shave with that one of yours Jason! 14kg! she must spin up like a YZF450! baaazzzing. lol, got something on your mind after the weekend Bluerat? Haven't got the cheque book out yet? Quote
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