Interesting article about bearing failures

Post by **MarkyB** » Mon Jul 01, 2013 7:03 pm

http://www.studebaker-info.org/tech/Bea ... -3-402.pdf
The stuff about fuzz and crank journal polishing was news to me at least.

Post by **Cam** » Sat Jul 06, 2013 7:56 pm

Absolutely brilliant, especially the pictures so we can compare to see what failures we have.

Thanks for that!

Post by **katy** » Sun Jul 07, 2013 4:33 am

Thats a good one, thanks Marky.

Post by **smithskids** » Sun Jul 07, 2013 10:26 am

Good article, when I retired I had a job adjusting to small engines. Here are some larger failures

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[/frame]at least on our engines we don't need a crane to lift the crank out!!!!

Post by **katy** » Sun Jul 07, 2013 4:14 pm

Here's a Cummins diesel that a connecting rod broke. It was running at 1800 RPM under load. It even knocked the cast aluminum sump off.[frame]

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Post by **MarkyB** » Sun Jul 07, 2013 8:07 pm

Blimey Smithskids, what did the damage to the crank journal, a meteorite?
The bent con rod doesn't look very well designed, is that why it's separate to the big end?

Post by **smithskids** » Sun Jul 07, 2013 8:59 pm

Hi MarkyB, the interferance fit of the con rod bush wasn't right causing fretting hence cracks. bingo the rod let the piston drop then spun round, cut the engine almost in half then snapped the bottom end bolts.

Post by **JOWETTJAVELIN** » Sun Jul 07, 2013 9:39 pm

Very interesting, thanks for posting. And those larger engine failures!!

Morris Minor Owners Club

Interesting article about bearing failures

Interesting article about bearing failures

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