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12 hours and 350 miles in a 47 p-15


dynaflash_8

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Oh im pretty sure i know what the noise is. The noise is the sound related to a rod knock and/or a spun bearing.

Fun times! :cool:

Ouch! I hope it is not that bad.

Just did about 470 miles today in my 1933 fortunately it was running as quietly at the end of the day as at the beginning.

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Seems like there is more and more people having bottom end failures after what most say was a very careful rebuild. I'm beginning to think the bearings might be of poor quality-maybe being manufactured offshore-possibly China? I've done lots of these engines and never had a failure-but have done none in the last 10 years. This problem is kinda scaring me now as I've got a 8 cylinder engine to do a complete rebuild on and am afraid of the parts I might end up with.

Sorry to see your sad ending....

Bob

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Does anyone have recommendations for good quality bearings? Sounds like something we all ought to know about.

i ordered mine from Rock-auto. They came in a white box.

Everything went together correct and everthing platigauged correctly and was torqued correctly. Even had the correct amount of drag on the crank.

I looks like it lost oil pressure to the botton end, but the gauge read 40 pounds.

All i know is that these fuckers cost me a 6k motor. :mad:

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i ordered mine from Rock-auto. They came in a white box.

Everything went together correct and everthing platigauged correctly and was torqued correctly. Even had the correct amount of drag on the crank.

I looks like it lost oil pressure to the botton end, but the gauge read 40 pounds.

All i know is that these fuckers cost me a 6k motor. :mad:

Suggest you clean up your language.

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I'll have to do some digging next weekend when I am at my parents house to to find the actual part numbers, but the bearings in my motor are Clevite's, the tri-metal ones I believe. supplied by the machine shop that reconditioned the crank and rods.

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How are the main bearings? If the mains were getting oil but not the rods it would imply that the flow through the crank was a problem. Drilled passages clear?

If the mains also look like they did not have sufficient lubrication then maybe an issue with the galleys in the block?

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Clevite Part Numbers:

Rod Bearing Set: CB-60G ......available in std 10 20 30 40 50 60 undersize

Main Bearing Set: MS-523P-10 .........avail 20 and 30 under

main #1: MB-2011P

main 2-3: MB-2012P

main 4: MB-122P(f)

Cam Bearing set: SH-23S

the main and rod bearings are trimetal, the cam bearings are bimetal.

Also available are piston pins,

these numbers are all on the clevite master catalog here,

http://www.mahleclevite.com/publications/EB-10-07.pdf

(dial up warning, its 800 pages and 8 megabits, big file)

page 192, chrysler engines block numbers 31 and 32 (canadian)

Edited by PatrickG
forgot a comment
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I have always trusted Clevite's. White box stuff-who knows where it came from... Seeing way too much of that no name White reboxed crap!

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An item in a plain white box with no manufacture information reminds me

of stuff you buy at some stores which says on the label "Distributed by

XXXX Stores".

Tells nothing about who made the item or where.

My thought about that is - it's probably the cheapest thing they can

buy and are just trying to make it sound like higher quality by attaching

their name.

May or may not be true in the bearing industry. Just my .02

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