Can this NOS crankshaft be saved?

[blue72s]

Below are some pictures of the 66mm crank. Will polishing clear all the rust out or does it require extensive repair?

[john walker's workshop]

Just do it and find out. Hopefully no spun bearing damage.

[Neil Harvey]

Clean it first and mag it to see if its cracked. Then measure the journal sizes. Could save the time and cost to polish it, if its damaged.

[blue72s]

Originally Posted by john walker's workshop

Hopefully no spun bearing damage.

I've been told it's NOS, so there should be no spun bearing damage.
I haven't bought it yet, hence my question.

Does it look like it's been used?

[john walker's workshop]

Looks like there's a rod bearing half still on a journal in the last pic, so probably used???

[blue72s]

Originally Posted by john walker's workshop

Looks like there's a rod bearing half still on a journal in the last pic, so probably used???

I think that's just lighting (reflection).

It seems to me that the area for the No. 8 bearing sleeve is quite rusty, maybe even pitted, whereas the rest of the crank is not too bad.

Is this worth saving or scrap?

[ChrisHamilton]

Hard to see without higher definition pics, so this is strictly speculation. I don't know if it all would polish out, but it seems to me that would clean up with a .25 or .5 mm turn under. I would think turning the crank .5 mm (.020) would clean all that up. Most definitely would not be scrap to me. Even if a journal had excessive pitting, that can be repaired.

[blue72s]

Thanks guys.

[Pio72porsche]

If it was me I’d pass. That crank pin closest to number eight main appears to have marks on it like it spun a bearing. The whole thing looks pretty poor, I’d say you’re better off spending the extra money on an excellent one. My two cents anyways

[patkeefe]

Spun bearing is obvious and ugly. I'd tend to agree with Neil Harvey on checking it out first.