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half-built B20 - good idea or not? 120-130

posted by  james_a_sousa on  Thu Dec 6 22:19 CST 2012
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last visit: Thu Oct 23 18:51 CST 2014
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The crank would not be ground .20 over - cranks are ground under or smaller when they are worn.

Holed are ground over, shafts are ground under.

Find out if the builder knew enough to use hardened valve seats - this is important - I would have new hardened seats installed if I could not verify that they were used.

Old, soft seats that have been cut would be a weak point in your engine.

Does the owner have parts receipts to show you?

I have a B20 in my '64 PV544 and it ran like a top today.
--
'96 855R,'64 PV544 driver, '67 P1800 basket case, '72 Yamaha Rd400, '68 Honda 350-4, '12 XC70, the first 5 are mine, heh, heh, 525,000 miles put on 10 bricks James A Sousa






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New half-built B20 - good idea or not? [120-130]
posted by  Phil Stevens  on Thu Dec 6 19:25 CST 2012 >


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