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I have a block at the machine shop and now have my old block disassembled. I am going to have the crank turned due to a couple of 'scuffs'.

Before taking the crank to the machine shop, would I benefit from deburring the crank with a die grinder? I'm mainly talking about the casting lines.

If it is decided that it is a worthwhile investment of my time, will it throw my balance off?

I'm not looking to lighten the crank any- just get rid of some casting flash.

FYI: I'm under 600 hp and 7k rpms.

Have a good day!
Michael
 

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We normally remove the casting flash. Be CAREFULL with a die grinder, cover the bearing surfaces, I use sections of PVC pipe and duct tape. On flat surfaces a 4 inch sander works well along with an assortment of files.
 
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