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-   -   Identify This Crank (https://classracer.com/classforum/showthread.php?t=52799)

Mike Taylor 3601 04-28-2014 09:17 AM
Re: Identify This Crank
 
forged should have .125 radius cast will be probaly .062
Mike Taylor 3601

njk53 04-28-2014 03:11 PM
Re: Identify This Crank
 
Look at the parting line. A cast crank will have a thin well defined parting line. A forged crank will have a wide parting line.

FireSale 04-28-2014 04:21 PM
Re: Identify This Crank
 
Quote:
Originally Posted by njk53 (Post 429484)
Look at the parting line. A cast crank will have a thin well defined parting line. A forged crank will have a wide parting line.
By the time they are boxed, no Eagle crank has a visible parting line. They all look good and clean. Cast is stamped C and forged is stamped 4340 or whatever alloy it's made from.

Summit has today to respond to my last email and then it's phone time.

Dale

FireSale 04-29-2014 11:05 PM
Re: Identify This Crank: Resolved
 
Got an email just as I called Summit. A new 4340 crank is on the way and UPS will pick up and return the cast one. No charge for the return either.

Dale


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