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Old 12-22-2008, 08:58 PM
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Cast crank damage repair

Hey Guys,

A few weeks ago I won an ebay 455 Olds nodular iron MT crank, magnafluxed, & .010" on the mains & rods.

Well, it was damaged during the shipment, & now the 1/2 rod throw has a pretty big nick on it. Just looking at it, I would say it goes at least .020" deep.

The guy that sold me this is pretty upset about it too. He's gonna put in a claim with UPS.

It it possible to weld up a cast iron crank, or is turning it down the only option?

If they machine it, should they do all of them to keep it balanced / uniform?


Thx
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Last edited by Zimmo; 12-22-2008 at 09:52 PM. Reason: sp
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Old 12-22-2008, 09:01 PM
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You can cut it out no problem.
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Old 12-22-2008, 11:55 PM
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Yes, that is a shame but I've seen cranks damaged a lot worse than that used with no problem. Of course it depends on what the intended use is....very high compression, high performance use or just a good 9.5:1 street engine.

A good crank shop would just "kiss" that spot with a very fine stone to get rid of the rough edges and then polish it out. I wouldn't worry too much about it.
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Old 12-23-2008, 01:11 AM
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I have used a small hand stone to smooth down nicks worse than that and the motor went 100,000 miles. Don't sweat the small stuff.
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Old 12-23-2008, 01:35 AM
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So I can smooth this out myself without getting it turned? If I make it smooth, can I leave it (a small hole) there?
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Old 12-23-2008, 03:05 AM
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yes.......
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Old 12-23-2008, 04:23 AM
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Have it polished, all the depression will do is hold a little extra oil in it no biggie.
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Old 12-23-2008, 06:01 AM
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How badly was the container the the crank arrived in, damaged, to cause the journal to be nicked like that? The shipper (seller) is responsible for making the shipping container bullet proof.

Myself and all the manufactures I buy cranks from recommend that anytime a crank arrives with the box damaged, to refuse the delivery, and contact them immediately. I/They then deal with their delivery service, to get reimbursement and ship a replacement. Same applies to your situation.

The crank can be repaired/used but, even repaired, it is not what you purchased.

The seller owes you the cost of the repair AND some sort of compensation, IF YOU decide to keep it. If not, just have them pick it back up from you and refund ALL your money.

Last edited by OHD; 12-23-2008 at 06:11 AM.
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Old 12-23-2008, 08:08 AM
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We built an old junkyard 302 a while back, and if you see what we started with ( crank journals ), you'd be happy you have what you got. lol Get yourself some Emory cloth
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Old 12-23-2008, 04:25 PM
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The box had a rip in it, but it was taped up (see pic).

I might try to clean it up myself. I have a dremel
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Old 12-23-2008, 04:29 PM
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Send it back or make a deal with seller to fix and compensate for the damage.
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Old 12-23-2008, 04:36 PM
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Quote:
Originally Posted by OHD
Send it back or make a deal with seller to fix and compensate for the damage.
My feelings also. Don't let the seller or shipper off scott-free on this deal. We're just telling you that the crank is useable with the previous posts.
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Old 12-23-2008, 06:43 PM
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Thx guys. I found a shop in my area that can look at it. The guy I bought it from already told me that he will pay for the repairs & file the claim with UPS. BTW, this crank is part of a 500hp/600tq Olds 455 buildup.
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Old 12-23-2008, 07:10 PM
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75-100 to polish....depending on final finish you request.
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Old 12-23-2008, 08:27 PM
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Quote:
Originally Posted by OHD
75-100 to polish....depending on final finish you request.
thats pretty pricey for polishing a crank.

sam-missle
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