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The oil cooler is furnace brazed when manufactured. That is very likely the source since that is a welding process that is very high in copper. The only other copper

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Old 08-01-2023, 07:55 PM   #2 (permalink)
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The oil cooler is furnace brazed when manufactured. That is very likely the source since that is a welding process that is very high in copper.

The only other copper in a VQ37 I can think of, is the VVEL shaft is bushed with copper bronze bushings.

Then there is a layer of copper on the engine main and rod bearings.
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Last edited by SG4247; 08-01-2023 at 07:58 PM.
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