Should I be concerned about the way this crank looks?

themechanic · Apr 4, 2017

This is in my 440 that came in the car. I took these photos when I removed the pan to replace the leaky rear main seal. How does the crank look to you?

1967coronet440 · Apr 4, 2017

I'm no engine master but I'd be concerned if it were mine.

69L48Z27 · Apr 4, 2017

Looks like a stock crank to me. Just had mine apart over the winter and that's what mine looked like. Rough manchine work but should not be in contact with anything.

MOPOWER871 · Apr 4, 2017

check you crank end play, push crank forward and back word should have .004-.006 clearance. if there's excessive end play check your thrust bearing wear.though I've seen cranks with that kind of counter weight factory rough machining

lewtot184 · Apr 4, 2017

that's normal for a stock crank.

fbs63 · Apr 4, 2017

lewtot184 said:
that's normal for a stock crank.

That's the way the factory machined the counterweights. Nothing out of the ordinary.

747mopar · Apr 4, 2017

Only if that's fresh wear (the shiny area) from rubbing which would mean you have a problem.

Bill Monk · Apr 5, 2017

Looks normal to me

dvw · Apr 5, 2017

Factory. The counter weight machining isn't pretty. Big deal. Can't tell anything about condition without disassembly.
Doug

HEMI-ITIS · Apr 5, 2017

What is that line in the block ,,,,5th pic??

lewtot184 · Apr 5, 2017

HEMI-ITIS said:
What is that line in the block ,,,,5th pic??

casting parting line. some of those can be pretty ugly with stuff hanging off them.

Daves69 · Apr 5, 2017

If your thrust bearing don't look imbedded in the rear of the journal, no "shinny stuff" in the bottom of the pan, and oil pressure is good, I'd say you're just fine.

Ranger16 · Apr 5, 2017

I'm no engine master either, but I would think if those marks where caused by the crank making contact with the block, you would not be asking if it where normal. The engine would have been complaining loudly and you'd have known long ago that it was not normal.

dvw · Apr 5, 2017

HEMI-ITIS said:
What is that line in the block ,,,,5th pic??

Casting line in the block.
Doug

themechanic · Apr 5, 2017

Well, that's a big relief to know. You learn something everyday about these cars if you're curious enough.

I used to be a machinist and I thought the arching scrape looked like a machine tool made it as it was being pulled out after a cut. I've seen rough surfaces like that when I had a broken or dull bit in a tool. But I never would have thought the cranks left the manufacturer with a finish as rough as that.

Doh!! (face palm). I didn't check the end play before I put the pan back on. It doesn't make any unusual noises. The block was rebuilt by the previous owner; you can still see crosshatching in the bores.

Thanks for all your interest and reassurances.

Jackpot50 · Apr 5, 2017

Just a crappy cast crank, they spent no time making them look nice.

Should I be concerned about the way this crank looks?

themechanic

Oklahoma is OK

1967coronet440

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69L48Z27

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MOPOWER871

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lewtot184

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fbs63

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747mopar

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Bill Monk

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dvw

FBBO Gold Member

HEMI-ITIS

STREETER on LI

lewtot184

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Daves69

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Ranger16

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dvw

FBBO Gold Member

themechanic

Oklahoma is OK

Jackpot50

Well-Known Member

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