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SG4247 · 08-01-2023, 08:55 PM

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.

08-01-2023, 08:55 PM	#2 (permalink)
SG4247 Track Member Join Date: Oct 2016 Location: OKC Posts: 790 Drives: 2010 touring Rep Power: 7842	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. __________________ NA on E85 - 12.402 @ 112 mph 100 shot E85 - 11.589 @ 117 mph JWT C2 cams rev Base Circle & Titan Valves Last edited by SG4247; 08-01-2023 at 08:58 PM.