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1/4 scale Porsche 917 180 degree V12 Build

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steamer:
Ok...I got some time in the shop finally   More crank disk "B"s and I cut the crank pins.    The  pins need to be drilled and finished to length

When I inspected my first crank disk, I found it was out of spec, so I'll need to crank out 1 more tomorrow.

progress!!
 

Vixen:
More nice bits :ThumbsUp: :ThumbsUp:

Even with the best CNC machines, there can be slight tolerance differences between otherwise identical components. For critical components, like this built-up crankshaft, it can pay to make an additional one or two. You can then chose the very best, the cream of the cream,  for the final assembly.

Mike

ozzie46:

--- Quote from: steamer on September 12, 2021, 01:42:16 am ---Ok...I got some time in the shop finally   More crank disk "B"s and I cut the crank pins.    The  pins need to be drilled and finished to length

When I inspected my first crank disk, I found it was out of spec, so I'll need to crank out 1 more tomorrow.

progress!!
 

--- End quote ---

Just don't get cranky about it. :facepalm:

Ron

steamer:
Yup  made 8   need 6    I have another blank and it's still set up..

Dave

Vixen:

--- Quote from: steamer on September 12, 2021, 12:31:25 pm ---Yup  made 8   need 6    I have another blank and it's still set up..

Dave

--- End quote ---

Need 6?? I guess that's 6 side A and 6 more side B

Mike

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