Crankshaft seal replacement

1961 CHEVROLET CLASSIC
86,000 MILES • V8 • MANUAL
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CARLOS MELO
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Had the front crankshaft seal replaced by a mechanic. Because I was away when the job was done, the mechanic dropped the car off at my garage. When I first started the car, it seemed to run rough and had a different sound. I immediately went back to the shop and the mechanic agreed that it shouldn't be driven. Several days later the mechanic told me that the car was all set, I arrived at the shop, started the car and it was still running rough. I again left the vehicle at the shop and several days later he showed me a damaged crankshaft. Could a crankshaft go bad as a result of a bad seal replacement? Car ran great prior to the seal replacement.
Oct 30, 2019 at 4:17 AM
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ASEMASTER6371
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Good morning,

The simple answer is no.

What did he say is the reason for running rough? What did he mean damaged crankshaft?

It does not make sense.

Roy
Oct 30, 2019 at 4:41 AM
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CARLOS MELO
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He showed me a photo of the crankshaft scored/scraped and now there is metal particles in the oil pan.
Oct 30, 2019 at 5:10 AM
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ASEMASTER6371
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Can you upload the picture for me to see?

Roy
Oct 30, 2019 at 9:30 AM
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CARLOS MELO
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See 4 photos attached.
Oct 30, 2019 at 10:42 AM
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ASEMASTER6371
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There is only one picture.

That bearing is junk and most likely the crank is damaged.

I would love to know why this happened.

Is that the only bearing that is damaged?

Roy
Oct 30, 2019 at 12:37 PM
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CARLOS MELO
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Other bearings are damaged, see other photos. I also would like to know why it happen.
Oct 30, 2019 at 12:51 PM
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ASEMASTER6371
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There are no other photos. Only one came through.

Roy
Oct 30, 2019 at 12:53 PM
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CARLOS MELO
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Did you see the other photos ?
Oct 30, 2019 at 1:07 PM
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ASEMASTER6371
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Wow. The crank is wiped out.

Was there any issue prior to this failure?

Roy
Oct 30, 2019 at 1:12 PM
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CARLOS MELO
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The car ran great prior to this failure. Now the mechanic is thinking that the oil pump was the factor?
Oct 30, 2019 at 1:16 PM
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ASEMASTER6371
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No, not at all. You are at the point of removing the engine for a complete overhaul.

I am worried something went bad during the seal replacement that caused bearing damage.

It is a simple job but I am wondering if something went wrong.

Is that a picture of the car?

Roy
Oct 30, 2019 at 1:20 PM
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CARLOS MELO
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That's I am thinking that something went wrong with the installation. Yes, that is the car.
Oct 30, 2019 at 1:26 PM
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ASEMASTER6371
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Okay, it said 1961 on the post information. That is 1963-1967 body.

You need another opinion on this. Is the car at the shop or at your house?

Roy
Oct 30, 2019 at 1:34 PM
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CARLOS MELO
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It's a 1966 and the car is at the shop.
Oct 30, 2019 at 1:36 PM
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ASEMASTER6371
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My gut thought is that the engine was run with no oil after the repair.

Roy
Oct 30, 2019 at 2:02 PM
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CARLOS MELO
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How do I prove that ?
Oct 30, 2019 at 2:05 PM
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ASEMASTER6371
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You cannot unless someone there tells you. I doubt they will own up to it.

You are in a rock and hard place.

Roy
Oct 30, 2019 at 2:15 PM
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CARLOS MELO
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Indeed I am. Running without oil is the only thing that makes sense.
Oct 30, 2019 at 2:19 PM
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ASEMASTER6371
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Yes, it does.

Roy
Oct 30, 2019 at 2:48 PM
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CARLOS MELO
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Thanks very much for thoughts.
Oct 30, 2019 at 3:00 PM
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ASEMASTER6371
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You are welcome.

Always glad to help.

Roy
Oct 30, 2019 at 3:36 PM