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Author Topic: Crankshaft regrind?  (Read 1913 times)

Offline Testarossa

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Crankshaft regrind?
« on: November 04, 2017, 02:21:56 PM »
I can't find anyone locally to regrind the 850T crankshaft. Big end journals will have to be turned down to 43.225mm to accept .762mm bearings. Who can the group recommend?
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70 Triumph TR6R, 74 850T, 74 Yamaha TA125, 89 Mille GT, 99 F650, 2013 Yamaha XT250; 1974 MGB
Gone: 59 Piper Comanche 250, 69 Harley/Aermacchi 350SS, 71 Honda CB500/4, 74 Laverda 750 SF2, 91 Suzuki VX800, 50cc two-stroke scoot, 83 XR350R

Rough Edge racing

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Re: Crankshaft regrind?
« Reply #1 on: November 04, 2017, 02:46:34 PM »
 You're in Colorado? Racers, cars and bikes, mention  Mile High Crankshaft in Denver
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Offline bobdar

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Re: Crankshaft regrind?
« Reply #2 on: November 04, 2017, 07:03:23 PM »
Yup, Dave at Mile High Crankshaft has a great reputation.  25 of years racing and I've never heard a complaint.
http://www.milehighcranks.com/ 303-781-6764
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bob darcey
lakewood, colorado
'75 850T
'56 Matchless G80

Offline Testarossa

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Re: Crankshaft regrind?
« Reply #3 on: November 05, 2017, 12:20:23 AM »
Thanks, guys! Will call him Monday.
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70 Triumph TR6R, 74 850T, 74 Yamaha TA125, 89 Mille GT, 99 F650, 2013 Yamaha XT250; 1974 MGB
Gone: 59 Piper Comanche 250, 69 Harley/Aermacchi 350SS, 71 Honda CB500/4, 74 Laverda 750 SF2, 91 Suzuki VX800, 50cc two-stroke scoot, 83 XR350R

Offline Rolf Halvorsen

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Re: Crankshaft regrind?
« Reply #4 on: November 05, 2017, 03:59:32 AM »
When regrinding - be aware that you should have as big a radius as possible (in the corners).
Sharp angle will destroy the crankshaft under heavy load.

Rolf
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