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Posted

So I pulled my motor out and and out to do a frame up build. And was checking clearances on the crank. Clutch side big end side to side is within spec but flywheel side is way out like over a mm. And was starting to rub against the side of the case. I also noticed the markings on the rod and its C.K. 121 which I looked up and I believe is a hodrods crank stock stroke. My question is can it just be pressed back together and welded or is it cheaper to just buy new? Theres no up and down play in rods just fyi.

Posted

outboard bearing replacement is cakework. need to be concerned with the center bearings and rod clearances, as that is where crank building comes in, and a stock stroke crank is only worth the rebuild if you are a pro at it already, or need to build what is not already offered. ths is because the pricing is about the same, or more, and you only get 2 rebuilds out of a crank before the parts are too streesed to make it. iirc, ck121 should be the markings on a stock rod. is ther a marking on the crank webbing, like hr204, and is there red on the center seal (looks like a spacer between the seal) or 2-orings? that is the sure sign of a hr crank

Posted

Didn't notice a red... But there is a hr204 marking on the webbing. So basically is it worth sending to a site sponsor for inspection and if so which one. And if it looks good other than the side to side clearance is it worth it to press back to spec and weld or should I just fork out for new?

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