Lunati Crankshaft problems

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Lunati Crankshaft problems

Post  Will Brewer on May 19th 2014, 1:13 pm

Don't know if anyone has had similar probem or not.just tried fitting crank in block before sending it for balancing.The radius on #4 main journal on the crank hits the saddle of the block. Wont turn at all. Returning to summit and getting a Scat..

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Re: Lunati Crankshaft problems

Post  kjett on May 19th 2014, 1:15 pm

Why not just get the crank fitted to the block with the bearings/clearances you want?
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Re: Lunati Crankshaft problems

Post  dfree383 on May 19th 2014, 1:20 pm

Have pictures ?
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Re: Lunati Crankshaft problems

Post  Lem Evans on May 19th 2014, 1:58 pm

What block?

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Lunati crank problems

Post  Will Brewer on May 19th 2014, 6:21 pm

Its an A460 block .Wish I had taken a picture. No problem with the block.My Scat crank spins perfectly.

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Re: Lunati Crankshaft problems

Post  Lem Evans on May 19th 2014, 6:32 pm

I had the same issue with the 1st batch[s] of Scat forgings....many years ago. The cast Scat shaft would spin fine. Seems someone forgot how to finish the cranks to accomadate the wider 2 & 4 main bulkheads of the A460 blocks. The issue at Scat has long since been resolved.

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Re: Lunati Crankshaft problems

Post  Will Brewer on May 19th 2014, 7:10 pm

I guess someone should call lunati and tell them.

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Re: Lunati Crankshaft problems

Post  QtrWarrior on May 19th 2014, 8:40 pm

Will Brewer wrote:I guess someone should call lunati and tell them.

Yes, you should......
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Re: Lunati Crankshaft problems

Post  powerstrokeace on May 19th 2014, 10:36 pm

Call Jon Kaase's shop they have see quite a few if them. They would know


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Re: Lunati Crankshaft problems

Post  10SHOTS on May 21st 2014, 12:01 am

My eagle crank had this problem also , I had .020 or .025 milled off the side of the cap and block
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