Copper in oil

Engines, Transmissions, running gear, etc.

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Re: Copper in oil

Postby EEricson » Fri Jun 16, 2017 5:03 pm

Just thinking out loud cuz a guy on the Speedster forum recently grenaded an engine because one of these failed.
https://dunebuggywarehouse.com/bronze-d ... ype-1.html

Maybe something to check.
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Re: Copper in oil

Postby Larry Jowdy » Sat Jun 17, 2017 3:30 pm

The only way to check the distributor gear is to split the case. If you were thinking it may be the cause of the copper in the oil, the gear is bronze which is 88% copper and 12% tin.
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Re: Copper in oil

Postby gixxerblade » Sun Jun 18, 2017 11:49 am

Larry Jowdy wrote:FYI, Babbitt, the material used to make bearings contains copper. See the chart below.


ASTM Babbitt Analysis Chart - ASTM B-23
Chemical Composition, % Tin Base Babbitt Grades ALLOY NUMBER (GRADE)
Tin 90.0-92.0 88.0-90.0
Antimony 4.0-5.0 7.0-8.0
Lead 0.35 0.35
Copper 4.0-5.0 3.0-4.0

Larry,
Wouldn't there also be a higher content of other metals in the sample as well?
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Re: Copper in oil

Postby Larry Jowdy » Sun Jun 18, 2017 12:47 pm

There should be but who know's until you find the source of the copper. It could be the oil cooler as reported on page 1 but who knows for sure until you split the case.
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